• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  8. 8
    8
  9. 9
    9

Bouncing balls experiment.

Extracts from this document...

Introduction

Tarik Saif 10 SN

Physics coursework: An investigation into how the height that a ball is dropped from influences the height of the bounce of different balls.

Plan

I am going to investigate how the height a ball is dropped from can affect the height of the bounce on impact with the ground. To broaden my investigation I will also change the type of ball used in order to evaluate the differences.

To ensure that my experiment will be carried out safely, everyone involved in the experiment will wear safety goggles at all stages of the experiment. The practical will be carried out in plenty of space, clear of bags and coats. It is also imperative to consider the safety of other pupils that may be close to the practical. Therefore no one who is not involved in the practical shall be allowed in close vicinity of the experiment. Great care will also be taken when dropping a ball to ensure that any ball does not strike others in the room.

The only dependent variable in this experiment is the height that the ball bounces, as this is not known or controlled prior to the experiment.

The independent variables in the experiment are the heights that the balls are dropped from, the surface that the ball bounces on, the type of ball used, ball is dropped vertically, and that when dropping a ball no force is applied.

...read more.

Middle

22.6

0.6

32

33

34

33

33

33

0.8

39

37

38

38

39

38.2

1.0

46

45

45

44

43

44.6

1.2

47

47

48

48

48

47.6

1.4

55

53

52

53

52

53

1.6

54

53

53

53

52

53

1.8

61

59

56

55

56

57.4

2.0

58

59

57

59

60

58.6

Hockey ball

129➔0.129

0.2

9

9

10

9

10

9.4

0.4

17

16

17

17

17

16.8

0.6

26

27

27

26

27

26.6

0.8

32

31

33

32

32

32

1.0

36

36

37

36

37

36.5

1.2

42

44

41

43

41

42.2

1.4

46

47

48

46

48

47

1.6

53

55

54

54

56

54.4

1.8

57

56

55

56

58

56.4

2.0

59

59

60

61

59

59.6

Golf ball

44.6➔0.0446

0.2

12

13

13

12

14

12.8

0.4

20

22

23

22

23

22

0.6

39

38

38

38

37

38

0.8

48

48

49

50

49

48.8

1.0

57

57

58

59

59

58

1.2

80

79

76

76

79

78

1.4

83

89

87

82

85

85.2

1.6

102

101

99

104

104

102

1.8

108

109

112

117

115

112.2

2.0

117

121

124

122

125

122.8

Analysis

From my results it is clear that the higher a ball is dropped from the greater the height of the bounce. The different heights of bounces not only depend on the height that the ball is dropped from but also the type of ball. Factors such as size, weight and material can greatly affect the height of the bounce. Here is the order of the highest bounce of a ball to the lowest:

  1. Golf ball
  2. Tennis ball
  3. Ping-pong ball (table tennis)
  4. Hockey
  5. Air-flow

From the results, it is acceptable to say that there is a linear relationship between height of the bounce and height ball dropped from. This shows that the two terms are directly proportional to each other.

My prediction that the golf ball would bounce the highest was correct reaching an average maximum height of 122.8 cm, whereas the other

...read more.

Conclusion

I could take this experiment further by using a different variety of balls that vary in size, and mass for example. I could extend this investigation by using different surfaces such as concrete and glass and see how the bounce is affected. Real surfaces are not perfectly hard. They distort when hit by a ball. They store energy themselves, and return some of it to the ball as it rebounds. Some surfaces, such as a trampoline, store energy very efficiently and return almost all of it to the rebounding object. Work out the time taken for each ball and compare the distance to the time taken for the ball to hit the surface, or the mass of the ball to the time taken. Or I could drop the balls in different areas that have different temperatures and see how this would affect the height of the bounce. I could use only one ball such as a tennis ball and compare how height it bounces to the height it is dropped from, and see if there is any relationship between the intervals and the maximum height they bounce. I could use on particular type of ball, such as golf balls, but use five of them and see how the mass of the ball can affect the height that it bounces. Such ideas could give more evidence, or extend my investigation in this subject field.

...read more.

This student written piece of work is one of many that can be found in our GCSE Forces and Motion 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 Forces and Motion essays

  1. Bouncing Ball Experiment

    If the drag is less the ball will fall faster and is less likely to reach its terminal velocity. Also it will affect its bouncing properties. The surface onto which the ball is dropped will affect the height to which the ball bounces because for any two objects that collide,

  2. Bouncing balls.

    So to conclude, all my assumptions are to prove that energy is conversed in this experiment. To reduce the experimental error: So to minimize the error, our initial height should not be too high, and the air should keep constant, so that air resistance can be ignored.

  1. Investigating Impact Craters

    However this still leaves the question of those early angles, why aren't they following any kind of trend? I think that the answer is due to the properties of the landing material. The sand was very good at stopping balls dropped vertically or from a steep angle, but the retardation of balls at a shallow angle was much less.

  2. In this experiment I aim to find out how the force and mass affect ...

    As shown on the graph the intercept is -0.1. I can also conclude from my results that there are many uncontrollable factors that affect the experiment when trying to measure the earth�s gravitational field strength. Such as the variations that appear close to the earth�s surface, though these won�t affect Newton�s calculation when put to two significant figures.

  1. This investigation is associated with the bounce of a squash ball. I will be ...

    The resilience of rubber balls is one of their most important characteristics. This is because the resilience of the ball material determines the "liveliness" and "bounce" of the ball. Resilience (R) is the ratio of the work recovered to the work required to deform the rubber.

  2. How does the temperature of a squash ball affects the impact time of the ...

    Then both foils were connected to two separated wires with crocodile clips and the wires were connected to the scalar timer. The ITMD was finished. In order to test if the ITMD was reliable, I performed several dropping test for checking.

  1. Squash Ball and Temperature Investigation

    * Do not leave hot water in beakers near electrical equipment such as sockets or stop watches, as it is highly dangerous if the water is in contact with the electricity causing electric shocks and damaging equipment too. * When handling the hot water, make sure you are careful as any spillage of hot water can cause skin burns.

  2. Trolly Experiment

    This will enable me to make sense of the data that I am provided with, which includes the time it takes for the card to pass through the light gate and the slope distance. Below are shown the formulae I will use.

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