• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Investigate the factors and the relationships between the factors, which affect how a ball bounces.

Extracts from this document...

Introduction

PLANNING

Aim

Investigate the factors and the relationships between the factors, which affect how a ball bounces.

Background Knowledge

When a ball is lifted, work is being done to a ball.  This gives it energy.  The energy is known as potential energy.  When the ball is dropped, gravity pulls it down; in other words, gravitational potential energy is lost.  The potential energy begins to convert into kinetic energy.  When the ball hits the floor, some energy is lost.  This energy goes into the ball, creating the ball to be compressed.  This type of energy is known as elastic energy.  When the ball is compressed, the molecules are stretched apart in some places and are squeezed together in others.  As they are pushed about, the molecules in the ball collide and rub across each other.  When the ball bounces back as its rebound, it has kinetic energy and gravitational potential energy is gained.  

The amount of work put into the ball (potential energy) must be equal to the amount of work the object can do (kinetic energy).  The higher the ball that it is dropped at, the higher it will bounce back up.  

When the ball is falling, it loses some of its energy to air friction and friction between the ball and the impact.  The area of the impact of the ball is warm, as the energy is lost as heat.

...read more.

Middle

47

48

48

47.7

80

45

47

46

46

70

42

43

41

42

60

37

38

38

37.7

50

32

33

34

33

40

27

28

27

27.3

30

17

18

20

18.3

20

11

12

14

12.3

After carrying out the preliminary experiment, I have decided to use a tennis ball for the final experiment as I had gained good results.  Also another reason for using a tennis ball is because if I had used a larger ball, I would not be able to record the measurements, due to its height.  This also applies if I had used a smaller ball because it would travel too fast and it would be difficult to take down the rebound distances.  I have decided to use the same measurements, except I am not going to consider using 20cm due to the height of the ball.

Range

I will be using a range of 30cm – 100cm, going in steps of 10cm each time.  I have chosen this range because it is easier to acquire results in the laboratory and good results can be gained.

Reference

Below are resources I have used to find information on the effect of bounce on balls.

  • http://www.exploratorium.edu/sports/ball_bounces/ballbounces2.html
  • www.google.com
  • Physics For You

Apparatus

  • Metre Rule
  • Tennis Ball

Diagram

Method

  1. Set up the experiment as shown in the diagram.
  1. Drop the tennis ball at 100cm and watch carefully at the distance it arrives at its rebound.
  1. Repeat this set of results at least three times to gain accuracy.
  1. Drop the ball at 90cm and carefully note down the measurements.
...read more.

Conclusion

Some improvements could be made to this investigation by adding a few modifications.

Firstly, I would use a larger ball and compare the energy between a larger ball and a tennis ball.  I could, however, use a smaller ball than a tennis ball and also compare the energy relationship between the three balls.

There are other possible ways that could be used to take measurements for the rebound height.

We used an ultrasound ranger, which detects the height of which the ball is bounced back up.  However, the graph that produced the results was not very accurate and several errors were made, such as many different points were produced and it was extremely difficult to make out the rebound height.

We also used a digital camera, which is a good thing to use; however, we could not zoom in to find the measurements.

To extend this investigation, I have decided to use a digital video camera because we can take a movie of the ball being dropped and the rebound height and zoom in to find the measurements.  This would be a more accurate way of recording the rebound heights due to the expansion of the movie clip.  

...read more.

This student written piece of work is one of many that can be found in our GCSE Height and Weight of Pupils and other Mayfield High School investigations section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Height and Weight of Pupils and other Mayfield High School investigations essays

  1. A hypothesis is the outline of the idea/ideas which I will be testing and ...

    Sample that are Right and Left Handed and also a multiple bar chart showing the number of students investigated. Pie & Bar Charts Probability Probability is an area that is used to predict the chance of something happening in the future or the likelihood of something to occur successfully and efficiently.

  2. 'How does the height a ball is dropped from effect the rebound height?'

    From the line graph, I have found that the bouncing height is proportional to the dropping height. When the dropping height is 0.5 meters the bouncing height is 0.26 meters. Again when the dropping height is 1.5 meters the bouncing height is 0.67 meters.

  1. Bouncing ball investigation.

    constant, as should the surfaces efficiency, due to the proportional increase in the graph to show the height bounced by the ball on the different surfaces. Diagram of prediction Prediction of graph to show average height bounced by ball on different surfaces Prediction of graph to show surface efficiency List

  2. Investigate the factors that affect the bounce of a tennis ball.

    Working with the same ball from 2m 0.1N x 2m = 0.2J of G.P.E 0.2 x 90 100 0.2 x 9 10 0.02 x 9 = 0.18J after point B 0.18 = 1.8 = 1.8 0.1 1 The ball dropped from 1m would bounce to 0.9m where as the ball dropped from 2m would bounce 1.8m.

  1. Investigate the effect of temperature on the bounce height of a squash ball.

    As you can see from the graph the line of best fit is a straight line which shows that there is a strong relationship between the bounce height and the temperature of the ball. This proves my scientific knowledge right because before the ball is dropped, energy is stored as GPE (gravitational potential energy).

  2. What factors affect the efficiency of the bounce of a ball?

    showed a linear relationship and there was hardly any fluctuation on the graph. I believe this to be because a ball will always behave in the same way from whatever height it is dropped from. In affect it will bounce to proportionally 3/4 of the original height.

  1. An Investigation into the factors that affect a squash ball bounce

    For factor 2 (different surfaces) we found out that the ball bounced highest on the carpet. So when the ball was bounced on the carpet the movement and gravitational energy from ball rebounded off the carpet; which acted as an elastic springboard and made the ball bounce higher than it would on any of the

  2. An Experiment Investigating the Factors Affecting the Energy Transfer Involved In a Bouncing Ball

    144 129 122 106 95 80 64 48 33 19 Difference 56 51 38 34 25 20 16 12 7 1 Energy Loss (%) (2dp) 72 71.67 76.35 75.71 79.17 80 125 80 82.5 95 Analysing and Considering Evidence My conclusion is that the difference between the heights is very

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work