1) The document describes an experiment to determine the effect of different air pressures (psi levels) on the rebound height and velocity of a basketball.
2) The experiment involved dropping a basketball from a height of 2 meters and measuring its maximum rebound height using a meter stick and phone camera. The rebound height was then used to calculate rebound velocity through the conservation of energy equation.
3) The results showed a positive linear relationship between psi level and both rebound height and velocity, however the differences were small, with rebound height only increasing by 1.4% from 4.5 psi to 9 psi and velocity increasing by 0.7%. While the hypothesis was not supported, the experiment provided evidence
1) The document is a physics project report submitted by Sparsh Sharma of Delhi Public School Jaipur about projectile motion. It discusses the definition and history of projectile motion from Aristotle to Galileo.
2) Projectile motion follows a parabolic path under the influence of gravity alone. It has applications in ballistics, missiles, sports and materials handling.
3) The report also describes a trebuchet, a type of catapult used for siege warfare. It works by converting the potential energy of a falling counterweight into kinetic energy that launches a projectile along a parabolic path.
This physics lab experiment was designed to verify Galileo's theory of conservation of energy by measuring the potential and kinetic energy of a falling tennis ball. The ball was dropped from various heights and its time of fall was recorded. Calculations showed the potential energy was about 3 times greater than the kinetic energy, failing to prove conservation of energy. Sources of error included air resistance, imprecise timing of when the ball hit the ground, and too few trials. Improving the experiment could help address these issues and better test the hypothesis.
Alternating Current -12 isc 2017 ( investigatory Project) Student
In this file, we will study about the various types of ac circuits, how they work,their phasor diagrams,types of periodic form,analytical method and graphical method to find average value of alternating current.
“To estimate the charge induced on each one of the two identical Styrofoam (o...VanshPatil7
This document is a certificate certifying that Vansh Patil of class 12th at SNBP International School completed a physics project on estimating the charge induced on two identical Styrofoam balls suspended vertically using Coulomb's Law, in partial fulfillment of a CBSE exam. The student thanks their physics teachers Miss Luna and Miss Ruchita for guidance. The project report includes an introduction to transformers, the theory behind them, sample circuit diagrams, observation tables showing measurements taken, results discussing relationships between voltage ratios and coils, and applications of transformers such as in voltage regulators.
#Investigatory project on fertilizer
#fertilizer #manure #organic manure #artificial manure
A project based on Investigatory project on fertilizer .and
fertilizer and its advantages and disadvantages
made by ABHISHEK MISHRA SATNA
abhishek_mishra_09
dr.deepak mishra mandsaur
Physics Investigatory project Class 12 Logic GatesRaghav Rathi
Raghav Rathi, a student of XII Science, completed an investigatory project on logic gates under the guidance of Ma'am Urmila at Bright India Public School during the 2017-2018 academic year. The project report discusses the basic logic gates - OR, AND, NOT, NOR, NAND, EX-OR and EX-NOR - through their truth tables and circuit diagrams. It explains how each gate can be designed using components like diodes, transistors and resistors. The conclusion states that logic gates are essential building blocks of modern electronics and universal gates like NAND and NOR can be used to construct all other basic gates.
This document is a chemistry project report by Utkarsh Varshney of class 12 on the topic of rusting of iron. It includes an introduction to rusting and its mechanisms, experiments conducted on rusting of iron under different conditions, and methods to prevent rusting. The project was completed under the guidance of the teacher Mr. Vikram Bhambhu to fulfill CBSE practical requirements.
1) The document is a physics project report submitted by Sparsh Sharma of Delhi Public School Jaipur about projectile motion. It discusses the definition and history of projectile motion from Aristotle to Galileo.
2) Projectile motion follows a parabolic path under the influence of gravity alone. It has applications in ballistics, missiles, sports and materials handling.
3) The report also describes a trebuchet, a type of catapult used for siege warfare. It works by converting the potential energy of a falling counterweight into kinetic energy that launches a projectile along a parabolic path.
This physics lab experiment was designed to verify Galileo's theory of conservation of energy by measuring the potential and kinetic energy of a falling tennis ball. The ball was dropped from various heights and its time of fall was recorded. Calculations showed the potential energy was about 3 times greater than the kinetic energy, failing to prove conservation of energy. Sources of error included air resistance, imprecise timing of when the ball hit the ground, and too few trials. Improving the experiment could help address these issues and better test the hypothesis.
Alternating Current -12 isc 2017 ( investigatory Project) Student
In this file, we will study about the various types of ac circuits, how they work,their phasor diagrams,types of periodic form,analytical method and graphical method to find average value of alternating current.
“To estimate the charge induced on each one of the two identical Styrofoam (o...VanshPatil7
This document is a certificate certifying that Vansh Patil of class 12th at SNBP International School completed a physics project on estimating the charge induced on two identical Styrofoam balls suspended vertically using Coulomb's Law, in partial fulfillment of a CBSE exam. The student thanks their physics teachers Miss Luna and Miss Ruchita for guidance. The project report includes an introduction to transformers, the theory behind them, sample circuit diagrams, observation tables showing measurements taken, results discussing relationships between voltage ratios and coils, and applications of transformers such as in voltage regulators.
#Investigatory project on fertilizer
#fertilizer #manure #organic manure #artificial manure
A project based on Investigatory project on fertilizer .and
fertilizer and its advantages and disadvantages
made by ABHISHEK MISHRA SATNA
abhishek_mishra_09
dr.deepak mishra mandsaur
Physics Investigatory project Class 12 Logic GatesRaghav Rathi
Raghav Rathi, a student of XII Science, completed an investigatory project on logic gates under the guidance of Ma'am Urmila at Bright India Public School during the 2017-2018 academic year. The project report discusses the basic logic gates - OR, AND, NOT, NOR, NAND, EX-OR and EX-NOR - through their truth tables and circuit diagrams. It explains how each gate can be designed using components like diodes, transistors and resistors. The conclusion states that logic gates are essential building blocks of modern electronics and universal gates like NAND and NOR can be used to construct all other basic gates.
This document is a chemistry project report by Utkarsh Varshney of class 12 on the topic of rusting of iron. It includes an introduction to rusting and its mechanisms, experiments conducted on rusting of iron under different conditions, and methods to prevent rusting. The project was completed under the guidance of the teacher Mr. Vikram Bhambhu to fulfill CBSE practical requirements.
Bikrant Roy conducted a chemistry investigatory project to determine which shampoo has the best pH for hair. He measured the pH of several popular shampoo brands and found that L'Oreal, Dove, and Head & Shoulders, which had a pH of 4, were the most acidic and therefore best for hair. A lower pH is better for hair because it opens the hair cuticle, while a higher pH can damage hair cuticles over time. The project followed a standard scientific method and helped identify shampoos with a pH closer to hair's natural acidic level.
Chemistry Investigatory Project Class 12 - Green Chemistry - Bio Diesel And B...Dhananjay Dhiman
Chemistry investigatory project for class 12 CBSE on the topic Green chemistry - bio diesel and bio petrol. It includes all the necessary formats and the content is relevant for the CBSE practical examination.
PHYSICS INVESTIGATORY PROJECT
AIM:-
CHARGING AND DISCHARGING OF CAPACITORS IN R-C CIRCUIT
PURPOSE
THE GOAL OF THIS PROJECT IS TO verify that 63% charge is stored in a capacitor in an R-C circuit at its time constant and 63% charge remains when capacitor is discharged and hence plot a graph between voltage and time
This document appears to be a chemistry project file submitted by Nikhil Dwivedi, a class 12 science student, on the topic of studying food adulterants. The file includes a certificate, acknowledgements, index, objective, introduction on food adulteration and laws, and details of experiments conducted to detect adulterants in foods like oils, fats, sugar and spices. The introduction provides background on food adulteration issues and legislation in India and other countries to protect consumers from health risks of adulterated foods.
This document describes a physics experiment to determine the combined focal length of one convex and one concave lens. The student measures the individual focal lengths of the convex and concave lenses and then combines them, varying their separation. Applying the lens combination formula, the student calculates the combined focal length as 14.516 cm, demonstrating that the effective focal length and power change when lenses are combined.
class 12th physics investigatory project on to estimate the charge induced on each one of the two identical styrofoam balls suspended in a vertical plane by making use of coulomb's law
"Study of amount of Casein present in different samples of Milk" [J P EDUCATI...Shweta Singh
This document is a chemistry project report submitted by a student. It examines the amount of casein present in different milk samples. The project introduces casein and milk, outlines the aim to study casein content, discusses the relevant theory, and describes the materials, procedure, observations, and conclusion. The observations table shows the source, total protein content, and percentage of casein measured in cow, goat, buffalo and store-bought milk.
Class 12th Chemistry Project: Measuring solubility of Saturated SolutionsPridhumn Gaur
This document describes an experiment to measure the solubility of sodium chloride (table salt), magnesium sulfate (Epsom salt), and sucrose (table sugar) in water. The procedure involves adding measured amounts of each solute to 100mL of water until saturation is reached, where no more solute will dissolve. The amounts of each solute dissolved are recorded. Observations show that NaCl has the highest solubility, followed by MgSO4, with sucrose having the lowest solubility. This result aligns with the theory that ionic compounds and smaller molecules dissolve more readily than larger, polar molecules. Heating the solutions increased the solubility of all three substances.
This document contains instructions and procedures for conducting physics experiments in a lab manual. It includes directions to follow general formatting and writing guidelines. It also provides the aim, apparatus, theory, observations and calculations for 5 sample experiments:
1. To determine resistivity of wires by plotting a graph of potential difference versus current.
2. To find resistance of a given wire using a metre bridge.
3. To verify the law of series combination of resistances.
4. To verify the law of parallel combination of resistances.
5. To determine resistance of a galvanometer and find its figure of merit.
Precautions for each experiment and potential sources of error are also outlined. Calcul
This document describes an experiment to analyze the quantity of casein in different milk samples. Casein was precipitated from cow, goat, buffalo, and Amul milk by adding ammonium sulfate and acetic acid solutions. The precipitated casein was collected, dried, and weighed. The analysis found that cow milk contains the highest percentage of casein at 5%, followed by buffalo milk at 4.2%, goat milk at 3.25%, and Amul milk at 3.88%. Therefore, the conclusion is that cow's milk is the most beneficial for human beings based on its casein content.
This document describes a student project measuring the solubility of sodium chloride, magnesium sulfate, and sucrose in water. The student followed an experimental procedure that involved adding incremental amounts of each solute to water until saturation was reached. Precautions were taken to ensure consistent temperature and stirring. The results found that sodium chloride had the highest solubility due to its small, dissociated ions, while sucrose had the lowest solubility due to its large molecular structure. Adding heat increased the solubility of all solutes by providing more kinetic energy to molecules. The conclusions and results aligned with chemical theories of solubility.
Rectifier class 12th physics investigatory projectndaashishk7781
This document is a physics project submitted by Ashish Kumar to his teacher, Mr. C.S. Jha, on the topic of rectifiers. It describes constructing a full wave bridge rectifier to convert alternating current (AC) to direct current (DC). The project aims to understand rectification and explain center tapped and bridge full wave rectification. It details the circuit components used, including a transformer, diodes, capacitors and resistor. The document explains how the full wave bridge rectifier works during each half cycle to allow current flow in one direction only, producing a pulsating DC output that is filtered by the capacitors. Testing showed the rectifier produced a 12V DC current.
The document describes experiments to measure the speed of light using different methods. The standing wave method used marshmallows and fax paper in a microwave oven to calculate speeds of 2.94x108 m/s and 2.94x108 m/s respectively. The lumped circuit method calculated the speed as 2.97921361 x 108 m/s using a cylindrical capacitor, and up to 1.14770898 x 1010 m/s using a parallel plate capacitor. The laser based method measured the speed as 3.47 x 108 m/s by timing the phase difference of a laser beam over distances of 0.89m.
This document is a chemistry investigatory project report on determining the quantity of casein present in different milk samples. It includes an introduction on casein and milk composition, the theory behind casein precipitation using acid, the procedure where casein is precipitated from various milk samples using acetic acid and weighed, observations of the measured casein quantities, and a conclusion that the casein content varies between milk sources.
INVESTIGATION OF NICOTINE IN TOBACCO PRODUCTSbimalbhakta
This document is a chemistry project submitted by a student named Pranab Bhakta on investigating the amount of nicotine in various tobacco products. The project aims to extract nicotine from tobacco and determine the percentage deposited as tar in different brands. It describes experiments to extract nicotine from tobacco leaves using sodium hydroxide and ether. The results show the nicotine content increases with darker tobacco leaves. The document provides background on tobacco plants, diseases, pests, nicotine properties, effects, and extraction process. Images and references are also included.
Ernest Rutherford's alpha ray scattering experiment led him to propose the nuclear model of the atom. The key findings were:
1) Most alpha particles passed through the thin gold foil with little deflection, but a small percentage were deflected by large angles, including backwards.
2) This could only be explained if the positive charge of the atom was concentrated into a very small, dense nucleus.
3) Rutherford concluded atoms have a small, dense nucleus containing its positive charge and mass, with electrons orbiting the nucleus.
This nuclear model replaced the plum pudding model, but had its own limitations that were later addressed by Niels Bohr's model of electron orbits and quantization
cbse class 12th, chemistry investigatory projectNIKHIL DWIVEDI
This document appears to be a chemistry project file submitted by Nikhil Dwivedi, a class 12 science student, on the topic of studying food adulterants. The file includes a certificate, acknowledgements, index, objective, introduction on food adulteration and laws, and details of experiments conducted to detect adulterants in foods like oils, fats, sugar and spices. The introduction provides background on food adulteration issues and legislation in India and other countries to protect consumers from health risks of adulterated foods.
Preparation Of Soy Milk And Its Comparison With Natural Milk Class XII Chemis...Deepak Bhandari
This is the project report on the topic "Preparation Of Soy Milk And Its Comparison With Natural Milk" for class 12th (XII) Students. I hope this will help.
- The document is a chemistry project submitted by a student named Tarun Malhotra analyzing samples of brass and bronze through qualitative analysis.
- It thanks various teachers and administrators for their support and contains an index of sections including introductions to alloys, common alloys like brass and bronze, how to prepare alloys, and descriptions of the qualitative analysis experiments performed on samples of brass and bronze.
- The experiments aimed to identify the metal constituents in the samples through chemical tests to detect copper and zinc in brass and tests for copper and tin in bronze.
1) The document analyzes the relationship between shoe size and height using data collected from 15 males and 15 females aged 17-18.
2) Correlation coefficients were calculated, showing a moderate positive correlation between height and shoe size.
3) Chi-squared tests found the relationship to be independent for males and females individually, but dependent when combining both genders.
The document provides information about regression analysis and calculating the coefficient of determination. It includes:
1) Instructions on how to perform a regression analysis using a calculator to find the least squares regression line, correlation coefficient, and residual plot from sample data.
2) An explanation of the coefficient of determination as a measure of how much variability in the variable y can be explained by its linear relationship with variable x.
3) A calculation example finding the coefficient of determination to be 0.83 for a dataset relating height and shoe size, meaning approximately 83% of the variation in shoe size can be explained by height.
Bikrant Roy conducted a chemistry investigatory project to determine which shampoo has the best pH for hair. He measured the pH of several popular shampoo brands and found that L'Oreal, Dove, and Head & Shoulders, which had a pH of 4, were the most acidic and therefore best for hair. A lower pH is better for hair because it opens the hair cuticle, while a higher pH can damage hair cuticles over time. The project followed a standard scientific method and helped identify shampoos with a pH closer to hair's natural acidic level.
Chemistry Investigatory Project Class 12 - Green Chemistry - Bio Diesel And B...Dhananjay Dhiman
Chemistry investigatory project for class 12 CBSE on the topic Green chemistry - bio diesel and bio petrol. It includes all the necessary formats and the content is relevant for the CBSE practical examination.
PHYSICS INVESTIGATORY PROJECT
AIM:-
CHARGING AND DISCHARGING OF CAPACITORS IN R-C CIRCUIT
PURPOSE
THE GOAL OF THIS PROJECT IS TO verify that 63% charge is stored in a capacitor in an R-C circuit at its time constant and 63% charge remains when capacitor is discharged and hence plot a graph between voltage and time
This document appears to be a chemistry project file submitted by Nikhil Dwivedi, a class 12 science student, on the topic of studying food adulterants. The file includes a certificate, acknowledgements, index, objective, introduction on food adulteration and laws, and details of experiments conducted to detect adulterants in foods like oils, fats, sugar and spices. The introduction provides background on food adulteration issues and legislation in India and other countries to protect consumers from health risks of adulterated foods.
This document describes a physics experiment to determine the combined focal length of one convex and one concave lens. The student measures the individual focal lengths of the convex and concave lenses and then combines them, varying their separation. Applying the lens combination formula, the student calculates the combined focal length as 14.516 cm, demonstrating that the effective focal length and power change when lenses are combined.
class 12th physics investigatory project on to estimate the charge induced on each one of the two identical styrofoam balls suspended in a vertical plane by making use of coulomb's law
"Study of amount of Casein present in different samples of Milk" [J P EDUCATI...Shweta Singh
This document is a chemistry project report submitted by a student. It examines the amount of casein present in different milk samples. The project introduces casein and milk, outlines the aim to study casein content, discusses the relevant theory, and describes the materials, procedure, observations, and conclusion. The observations table shows the source, total protein content, and percentage of casein measured in cow, goat, buffalo and store-bought milk.
Class 12th Chemistry Project: Measuring solubility of Saturated SolutionsPridhumn Gaur
This document describes an experiment to measure the solubility of sodium chloride (table salt), magnesium sulfate (Epsom salt), and sucrose (table sugar) in water. The procedure involves adding measured amounts of each solute to 100mL of water until saturation is reached, where no more solute will dissolve. The amounts of each solute dissolved are recorded. Observations show that NaCl has the highest solubility, followed by MgSO4, with sucrose having the lowest solubility. This result aligns with the theory that ionic compounds and smaller molecules dissolve more readily than larger, polar molecules. Heating the solutions increased the solubility of all three substances.
This document contains instructions and procedures for conducting physics experiments in a lab manual. It includes directions to follow general formatting and writing guidelines. It also provides the aim, apparatus, theory, observations and calculations for 5 sample experiments:
1. To determine resistivity of wires by plotting a graph of potential difference versus current.
2. To find resistance of a given wire using a metre bridge.
3. To verify the law of series combination of resistances.
4. To verify the law of parallel combination of resistances.
5. To determine resistance of a galvanometer and find its figure of merit.
Precautions for each experiment and potential sources of error are also outlined. Calcul
This document describes an experiment to analyze the quantity of casein in different milk samples. Casein was precipitated from cow, goat, buffalo, and Amul milk by adding ammonium sulfate and acetic acid solutions. The precipitated casein was collected, dried, and weighed. The analysis found that cow milk contains the highest percentage of casein at 5%, followed by buffalo milk at 4.2%, goat milk at 3.25%, and Amul milk at 3.88%. Therefore, the conclusion is that cow's milk is the most beneficial for human beings based on its casein content.
This document describes a student project measuring the solubility of sodium chloride, magnesium sulfate, and sucrose in water. The student followed an experimental procedure that involved adding incremental amounts of each solute to water until saturation was reached. Precautions were taken to ensure consistent temperature and stirring. The results found that sodium chloride had the highest solubility due to its small, dissociated ions, while sucrose had the lowest solubility due to its large molecular structure. Adding heat increased the solubility of all solutes by providing more kinetic energy to molecules. The conclusions and results aligned with chemical theories of solubility.
Rectifier class 12th physics investigatory projectndaashishk7781
This document is a physics project submitted by Ashish Kumar to his teacher, Mr. C.S. Jha, on the topic of rectifiers. It describes constructing a full wave bridge rectifier to convert alternating current (AC) to direct current (DC). The project aims to understand rectification and explain center tapped and bridge full wave rectification. It details the circuit components used, including a transformer, diodes, capacitors and resistor. The document explains how the full wave bridge rectifier works during each half cycle to allow current flow in one direction only, producing a pulsating DC output that is filtered by the capacitors. Testing showed the rectifier produced a 12V DC current.
The document describes experiments to measure the speed of light using different methods. The standing wave method used marshmallows and fax paper in a microwave oven to calculate speeds of 2.94x108 m/s and 2.94x108 m/s respectively. The lumped circuit method calculated the speed as 2.97921361 x 108 m/s using a cylindrical capacitor, and up to 1.14770898 x 1010 m/s using a parallel plate capacitor. The laser based method measured the speed as 3.47 x 108 m/s by timing the phase difference of a laser beam over distances of 0.89m.
This document is a chemistry investigatory project report on determining the quantity of casein present in different milk samples. It includes an introduction on casein and milk composition, the theory behind casein precipitation using acid, the procedure where casein is precipitated from various milk samples using acetic acid and weighed, observations of the measured casein quantities, and a conclusion that the casein content varies between milk sources.
INVESTIGATION OF NICOTINE IN TOBACCO PRODUCTSbimalbhakta
This document is a chemistry project submitted by a student named Pranab Bhakta on investigating the amount of nicotine in various tobacco products. The project aims to extract nicotine from tobacco and determine the percentage deposited as tar in different brands. It describes experiments to extract nicotine from tobacco leaves using sodium hydroxide and ether. The results show the nicotine content increases with darker tobacco leaves. The document provides background on tobacco plants, diseases, pests, nicotine properties, effects, and extraction process. Images and references are also included.
Ernest Rutherford's alpha ray scattering experiment led him to propose the nuclear model of the atom. The key findings were:
1) Most alpha particles passed through the thin gold foil with little deflection, but a small percentage were deflected by large angles, including backwards.
2) This could only be explained if the positive charge of the atom was concentrated into a very small, dense nucleus.
3) Rutherford concluded atoms have a small, dense nucleus containing its positive charge and mass, with electrons orbiting the nucleus.
This nuclear model replaced the plum pudding model, but had its own limitations that were later addressed by Niels Bohr's model of electron orbits and quantization
cbse class 12th, chemistry investigatory projectNIKHIL DWIVEDI
This document appears to be a chemistry project file submitted by Nikhil Dwivedi, a class 12 science student, on the topic of studying food adulterants. The file includes a certificate, acknowledgements, index, objective, introduction on food adulteration and laws, and details of experiments conducted to detect adulterants in foods like oils, fats, sugar and spices. The introduction provides background on food adulteration issues and legislation in India and other countries to protect consumers from health risks of adulterated foods.
Preparation Of Soy Milk And Its Comparison With Natural Milk Class XII Chemis...Deepak Bhandari
This is the project report on the topic "Preparation Of Soy Milk And Its Comparison With Natural Milk" for class 12th (XII) Students. I hope this will help.
- The document is a chemistry project submitted by a student named Tarun Malhotra analyzing samples of brass and bronze through qualitative analysis.
- It thanks various teachers and administrators for their support and contains an index of sections including introductions to alloys, common alloys like brass and bronze, how to prepare alloys, and descriptions of the qualitative analysis experiments performed on samples of brass and bronze.
- The experiments aimed to identify the metal constituents in the samples through chemical tests to detect copper and zinc in brass and tests for copper and tin in bronze.
1) The document analyzes the relationship between shoe size and height using data collected from 15 males and 15 females aged 17-18.
2) Correlation coefficients were calculated, showing a moderate positive correlation between height and shoe size.
3) Chi-squared tests found the relationship to be independent for males and females individually, but dependent when combining both genders.
The document provides information about regression analysis and calculating the coefficient of determination. It includes:
1) Instructions on how to perform a regression analysis using a calculator to find the least squares regression line, correlation coefficient, and residual plot from sample data.
2) An explanation of the coefficient of determination as a measure of how much variability in the variable y can be explained by its linear relationship with variable x.
3) A calculation example finding the coefficient of determination to be 0.83 for a dataset relating height and shoe size, meaning approximately 83% of the variation in shoe size can be explained by height.
The document is an introduction to an independent research project investigating the relationship between pressure and kinetic energy of a soccer ball. It outlines the background, hypothesis, experimental design, procedures, data collection, results and analysis. The student found that kinetic energy of the soccer ball increases linearly with pressure, following the equation y=0.0669x+1.140, except for one outlier point where too high pressure reduced energy. The experiment could be improved by more securely attaching the pendulum and stabilizing the ball placement. Reasoning and perception were used to analyze whether results matched expectations.
LOWER LIMB ANGULAR KINEMATICS AND HOW IT EFFECTS GAIT SPEEDJohn Joe Magee
This study examined the relationship between lower limb angular kinematics and gait speed. The researcher measured peak knee flexion in the stance and swing phases and peak plantarflexion in a participant walking at various speeds. Results showed no significant correlation between knee flexion in stance and speed. However, there was a strong positive correlation between knee flexion in swing and speed, as well as between plantarflexion and speed. These findings support previous research indicating that knee flexion in swing and plantarflexion are important mechanisms for achieving higher gait velocities.
This document presents a computer vision project that tracks a soccer ball in video frames and breaks down its rapid movement using a technique called StroMotion. The approach involves preprocessing the video, template matching to identify the ball, connected component labeling, region segmentation to track the ball between frames, and contour tracking to draw the ball's perimeter. Experimental results will compare the tracked ball positions to ground truth data to evaluate accuracy. Additional information is provided on related commercial systems and the presenter invites questions.
This is an analysis to see if height and shoe sizes are correlated among people. To see if whether the bigger feet you have the taller you will be or otherwise.
11.[6 12]assessing the relationship of kinematics with dribbling performance ...Alexander Decker
The document assessed the relationship between kinematics and dribbling performance in basketball at different phases. Twenty male basketball players aged 18-28 participated. Motion capture data of high dribbles were collected and correlations with performance scores were calculated. Results showed insignificant relationships between dribbling performance and angles of joints like the ankle, knee, hip, shoulder, elbow and wrist at both the preparation and execution phases of high dribbles. This suggests that joint angles may not be primary determinants of high dribble performance in basketball.
This document outlines a research project investigating the effect of lower body flexibility on speed for female football and rugby players aged 16-20. It includes the aims, hypotheses, methodology, data collection and analysis, results, and conclusions of the study. The researcher found negative correlations between flexibility and speed, indicating that greater flexibility resulted in faster speeds. Differences were also found between the sports. The document provides a thorough review of the research process and recommendations for future studies with more participants, specific positions, and varied demographics.
This document provides information about a research project investigating the effect of lower body flexibility on speed in female athletes. It includes the assessment criteria, aim to study 16-20 year old female footballers and rugby players, and sections on abstract, contents, methodology, data collection and analysis, results, and discussion. The results indicate that increased lower body flexibility decreases speed, with hip flexibility having the strongest effect for both sports. Knee and ankle flexibility had more effect on footballers' speed while having little effect on rugby players. The implications are that specific flexibility training may be needed for different women's sports to optimize both flexibility and speed.
This document provides information about a research project investigating the effect of lower body flexibility on speed in female athletes. It includes the assessment criteria, aim to examine flexibility and speed in 16-20 year old female footballers and rugby players. The document outlines the methodology, which involved flexibility tests of the hips, knees and ankles along with sprint tests. Results found that increased lower body flexibility decreases speed, with hip flexibility having the strongest effect. Flexibility affected footballers' speed more than rugby players. The research followed standard scientific structure and provided results to further understand flexibility and speed in women's sports.
This document outlines a research project investigating the effect of lower body flexibility on speed for female footballers and rugby players aged 16-20. It includes the aims, hypotheses, methodology, data collection and analysis, results, and conclusions of the study. The project found negative correlations between flexibility and speed, indicating that greater flexibility resulted in faster speeds. It also found differences between the sports, with total knee and ankle flexibility having a greater effect on speed for footballers than rugby players. The document discusses strengths and areas for improvement in the research and provides recommendations for further studies with more participants, additional flexibility and speed tests, and analyzing differences based on player position.
This document provides information about a research project investigating the effect of lower body flexibility on speed in female athletes. It includes the aims, hypotheses, methodology, data collection and analysis methods, and initial results. Specifically:
- The project examines the relationship between flexibility and speed in 16-20 year old female footballers and rugby players.
- Lower body flexibility was measured using a sit-and-reach test and goniometer to measure joint ranges of motion. Speed was measured via a 30m sprint test.
- Preliminary results found stronger negative correlations between hip flexibility and speed compared to other flexibility measures. Footballers also showed stronger correlations between flexibility and speed than rugby players.
- Further analysis of the data
The document describes how to construct a histogram to analyze a set of gunnery exercise data. It involves 9 steps: 1) counting 135 data points of fall distances, 2) summarizing the data on a tally sheet showing the frequency of each distance, 3) computing the range as -180 to 410 yards, 4) determining 10 intervals will be used, 5) computing the interval width, 6) determining the starting point of each interval, 7) counting frequencies within each interval, 8) plotting the histogram, and 9) adding a title and legend. The histogram will visually show the distribution of fall distances to help evaluate the gunnery exercise results.
The document provides instructions for constructing a histogram using a 9-step process. It begins with counting the number of data points, summarizing the data on a tally sheet, and computing the range and number of intervals. It then describes how to determine the interval width, starting points for each interval, and counting data points within each interval. The final steps are to plot the data by interval on a bar chart and add a title and legend to provide context for the histogram. An example walks through each step to construct a histogram of gunnery exercise data from a ship, with intervals of 60 yards and 135 total data points.
A PennVet Pilot Study to Evaluate the Big Barker Therapeutic Mattress in Dogs...Eric Shannon
This clinical trial was a single center, open-label, proof of concept study. In order to participate, dogs had to be greater than three years of age and weigh more than seventy pounds. A diagnosis of osteoarthritis was confirmed by a veterinary radiologist at the Ryan Small Animal Hospital of the University of Pennsylvania.
The document outlines a research project investigating the effect of lower body flexibility on speed for 16-20 year old female footballers and rugby players. It includes the aim, hypotheses, methodology, data collection and analysis, results, discussion, and conclusions of the research project. The research found that greater lower body flexibility was correlated with slower speeds, and that flexibility had differing effects between the sports.
This document outlines a research project investigating the effect of lower body flexibility on speed for 16-20 year old female football or rugby players. It includes the aim, abstract, contents, methodology, data collection and analysis, results, discussion, and conclusions of the research project. The researcher aimed to examine whether flexibility in the hip, knee, or ankle had the greatest influence on speed for these athletes.
This document outlines the procedures and declarations for a project comparing different tennis string types. It includes a word count declaration limiting the project to 8,000 words excluding references and appendices. It also requires the student to declare that they did not plagiarize and that the work is their own. Tables and figures to be included are also listed.
Lab 1 ball toss data analysis (physics with vernier experimenADDY50
This document describes a physics experiment using a motion detector to collect position, velocity, and acceleration data for a ball tossed straight upward and falling back down. The objectives are to analyze the graphs of position vs time, velocity vs time, and acceleration vs time to see the patterns in a ball's motion as it travels up and down. The procedure involves tossing a ball above the motion detector and analyzing the graphs to see the regions of motion and fit curves to the free fall portions.
Paired comparison technique is a method for scale construction developed by Thurstone. It involves comparing stimuli in pairs to determine which is perceived as better. Judges' responses are used to construct F, P, and Z matrices to calculate scale values. An example is given of identifying benefits of a dairy development scheme using this technique. The results show economic independence had the highest scale value, followed by sustainable employment, risk reduction, and social acceptability, with supporting others having the lowest value. Internal consistency is checked by calculating the average absolute discrepancy between empirical and expected proportions, with a lower value indicating higher consistency.
Similar to Effect of pressure in ball bounce height (20)
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Sri Guru Hargobind Ji - Bandi Chor Guru.pdfBalvir Singh
Sri Guru Hargobind Ji (19 June 1595 - 3 March 1644) is revered as the Sixth Nanak.
• On 25 May 1606 Guru Arjan nominated his son Sri Hargobind Ji as his successor. Shortly
afterwards, Guru Arjan was arrested, tortured and killed by order of the Mogul Emperor
Jahangir.
• Guru Hargobind's succession ceremony took place on 24 June 1606. He was barely
eleven years old when he became 6th Guru.
• As ordered by Guru Arjan Dev Ji, he put on two swords, one indicated his spiritual
authority (PIRI) and the other, his temporal authority (MIRI). He thus for the first time
initiated military tradition in the Sikh faith to resist religious persecution, protect
people’s freedom and independence to practice religion by choice. He transformed
Sikhs to be Saints and Soldier.
• He had a long tenure as Guru, lasting 37 years, 9 months and 3 days
1. Submitted To
MS. Meherun Nesa
“ Lecture ”
Department of EEE
Green University Of Bangladesh
Submitted By
Group - 03
ID: 14, 18, 28, 37 , 61
Department of Textile
Green University Of Bangladesh
“ Effect of Pressure in Ball Bounce Height“
COURSE TITLE : Physic I Lab
COURSE CODE : PHY-102
4. To determine if different measures of PSI have a significant
effect on the initial rebound height and velocity of a basketball
.
To analysis the ball bounces back up more significantly than psi
levels
5. Learning Outcome
Understanding enhence knowledge about how
dose air pressure in a ball make the ball bounce
higher
Able to understood the physics of bouncing balls
Undesrtanding energy with a bouncing ball .
6. When a basketball is inflated, it is being inserted with lots of air, similar to that of a balloon.
The basic principle is that when more air is pushed into the ball, the air pressure increases
because the air is being squished, trying to fit in a minimal space. As the air becomes
more compact, it then pushes against itself in the ball, therefore having a force which is
called air pressure this force is what inflates the ball into the sphere shape. When the
basketball makes contact on the ground, we are temporally pressing on the ball which
squishes the air even more. The importance of this is since the ball is compact with air, the
air then presses back with a certain force. This certain force is the cause to the rebound of
the ball; thus, indicating that as higher pressures are applied, the ball will bounce higher.
The force which the ball exerts is then followed by a velocity, and is also in the same
relationship . Rebound, in a sports context, is when a ball bounces back from striking a
hard surface or object. In this case, rebound is a significant factor, especially to those who
play basketball, because it can determine the height when a basketball is dropped or
dribbled on the court. However, a basketball rebound is dependent on the amounts of
pressure inserted into the ball per inch.
Theory
7. Materials Required/ Apparatus
Meter stick
Standard Indoor Leather basketball (75 cm
circumference)
Pressure Gauge Barometer
Recording device (preferably with the slow down option)
Ladder
8. Specification of Components
A meterstick or yardstick is either a straightedge or foldable ruler
used to measure length, and is especially common in the
construction industry. They are often made of wood or plastic,
and often have metal or plastic joints so that they can be folded
together.
High quality basketballs are made of genuine leather or
composite leather (cheap balls are made of rubber). Balls that
are made of genuine leather are generally considered to be the
best ones and are used in the NBA and WNBA. They are also
the most expensive type of balls
9. A meterstick or yardstick is either a straightedge or foldable
ruler used to measure length, and is especially common in the
construction industry. They are often made of wood or plastic,
and often have metal or plastic joints so that they can be
folded together.
For recoding we need a good recoding device . So we
used Tecno camon 16 . This phone have a very good
quality slow motion recording option with countinuous slow
motion shooting in HD quality at 960 frames per second .
A piece of equipment consisting of a series of bars or
steps between two upright lengths of wood, metal, or
rope, used for climbing up or down something.
10. Procedure
Ball selection : An indoor basketball was utilized for the
experiment. The same 75.0 centimeter circumference ball was
conducted in all six trials for each psi levels. Although it is true that
certain materials on the surface of the ball could result in different
impacts and various forces, the standard indoor leather wrapping ball
was used. The same area point on the ball was dropped as well to
further reduce any possible procedural errors.
Drop height : Every basketball in all psi levels were dropped from
the same height of 2.0 meters. This value does not play a role in any of
the calculations, but is valuable to provide a uniform height for each
level.
11. This will be calculated from the initial
bounce for each psi level. The average will be taken and it
will then be inserted into a graph to determine the
significance of the slope. An iphone with the slow motion
option will be used to measure the height once it bounces.
The average height recorded will then
be plugged into an energy conservation equation to
determine the rate of the velocity applied at all psi levels.
After finding the velocity, the data will be in the form of a
graph to determine the significance of the slope.
12.
13. • The dependent variable was the basketball rebound height, h, which is
measured at the maximum initial rebound in meters. To measure h, a meter stick
was aligned to the wall. When the ball is dropped from the height of 2.0m and
bounces back up, a phone will record the maximum height it reaches.
• The independent variable are the various levels of psi: 4.5, 5.0, 5.5, 6.0, 6.5, 7.0,
7.5, 8.0, 8.5, 9.0. A higher domain would burst the basketball as basketball air
pressure has a limit just like that of a balloon. A lower domain would result in no
initial bounce, which would not pair well with the results.
• The control variable is the standard 8.0 psi level for an indoor basketball. This
psi is crucial as it will be compared to every psi above and below it to dispose
the significance of the relationship between psi and height/velocity
Experimental Variables
14. • Controlled variables consist of: A controlled environment will
be used to conduct the experiment, ensuring no wind factor,
humidity, and temperature factor. Additionally, the scientific
equipment will be calibrated in order to check if it is working
and producing accurate outcomes with correct
measurements. The basketball was dropped from the same
surface at the same area. Any offset values or outliers were
removed from the data collection and was redone for that
trial; doing so would allow proper analysis and conclusions
based on the results rather than on defective outcomes. This
is a good scientific practice, demonstrating the effects of
nature and procedural errors on the science at work.
16. Graph 1 shows the linear growth with its equation and r2 value. This graph indicates that as
the psi increases, the height in meters rises slightly, but not as significantly as predicted. As seen from
the data table and the graph above, at 4.5 psi, it was at 1.281 meters. But at 9.0 psi, the height was
1.518 meters. A difference of .237 meters was shown. The r2 value is high (0.95446), indicating a low
dispersion of data around the best fit line. Having this strong line suggest that the effects of psi on the
initial rebound height is valid.
17. mgh = (1/2) mv^2
m is mass, g is gravity, h is height, and v is velocity.
For example, at psi of 4.5, the calculations is as follows.
(9.81ms^-2) (1.281)= (1/2) (v^2)
[The mass cancels from both sides]
v(4.5) = 5.013 ms^-1
Velocity Calculations :
After acquiring the average height for each psi, it was then plugged into
a conservation of energy equation to determine the rate of velocity it
was moving between the ground to the air. This formula below will be
used:
19. Graph 2 also indicates a linear growth in velocity. The r2 value is high (0.95015), suggesting
that the dispersion of data is not far from the best fit line. This reveals how psi does have an
effect on rebound velocity, but not significantly because the difference between the highest
(9.0 psi) to (4.5 psi) was only .444 ms-1 apart. Error bars were not needed here because the
velocity was only calculated by a formula, not recorded by the camera.
20. Conclusion
The hypothesis was not supported. It was predicted in the hypothesis
that at 9.0 psi, it would reach 10% of a greater height and velocity than
the 8.0 psi (control), and at 4.5 psi, it would decrease at 20%. At 9.0 psi,
the height only increased by 1.4% and the velocity by 0.7%. At 4.5 psi, it
only decreased at a height by 14.4% and the velocity by 7.5%. Despite the
previous mentioned limitations and unsupported hypothesis, the
research question was in fact partially supported. The effects of psi on
rebound height in graph 1 was not significant, but the positive linear
slope suggest that the effects were prominent. Clearly, having a higher
pressure does result in a larger force, supporting the methodology that
psi contributes to greater rebound in both height and velocity.
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