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

Investigating the Bouncing of a Ball.

Extracts from this document...


AS Level

Physics Coursework

  • Investigating the Bouncing of a Ball

Sarah Tayler

In this investigation, a basketball was dropped from a certain height (2.24m), and its displacement was measured over a short period of time (approximately 5 seconds) using an ultrasound distance sensor which was fixed directly above. The basketball weighed 602g and had a diameter of 24.2 cm. The sampled data was recorded and used to plot various graphs.

Table of Data (1,2):

The recorded data is shown in the table, along with the displacement from the ground, velocity, acceleration, gravitational potential energy, kinetic energy and total energy. Although 99 samples were taken altogether, the last 8 have been discarded as the readings after that point became erratic.

Displacement/Time graph (3):

This graph shows the displacement of the basketball from the sensor. Each separate bounce is clear to see.

Displacement/Time graph (4):

...read more.


2. Some of the peaks on this graph (where the ball hits the ground) are ‘split in two’. If there was a higher sampling rate, all of the peaks would be split like this, and the split would extend all the way to 0. However, during the actual bounce, the ball is only at 0m/s for an immeasurably short time. Therefore, if samples are taken either side of this point when the ball is travelling at its fastest, it can give the appearance that the ball never slows down when it hits the ground.

Total Energy/Time graph (9):

This graph shows the total energy of the ball. It can be worked out by adding the GPE and KE together. The only time when this does not work

...read more.


         = 2.18526J

Percentage of energy lost        = 29.204%

3rd to 4th: change in GPE        = 5.2976 - 3.89494

                                = 1.40266J

Percentage of energy lost        = 26.477%

It is apparent that the same proportion of energy is lost on each bounce, approximately 28%.


...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. Energies and motion involved in bouncing balls.

    Information on gravitational potential energy, kinetic energy, velocity, and elasticity will be from preliminary work done in physics in previous years during secondary school as well as from boos and sources from the internet. Results table Type of ball Mass (g==>kg) Height bal dropped from (m) Height ball bounces (cm)

  2. Squash Ball and Temperature Investigation

    2. For each ball, using the tongs to hold the ball under the water, heat it to about 300C (add ice if necessary to cool the temperature). 3. Set up your metre rule in a clamp (to keep it stationary whilst performing the experiment)

  1. Aim To see how the efficiency of a bouncing ball ...

    Also, I felt that the other factors would be relatively easy for me to keep constant. If I used the same ball each time the surface would always stay the same, as would the pressure inside of the ball and the material of the ball.

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

    later in the process. The manufacturer's 'recipe' is, of course, a no less closely guarded secret than that of Coca Cola, and different combinations of ingredients (as many as 15 are used, including polymers, fillers, vulcanising agents, processing aids, and reinforcing materials)

  1. Investigating the amazingness of theBouncing Ball!

    Having repeated the experement three times to find the average, my results are as follows Bounce Number Time 1 /s Time 2 /s Time 3 /s Average /s Height /m =1/2at2 1 796 790 788 791.3 0.76782341 2 700 694 695 696 0.59401512 3 625 635 625 628 0.48361338 4

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

    The impact time is hypothesized to be shorter. Since, when the impact time is smaller with net force being constant, the average force must be greater. Therefore, with the two effects, the average force of the impact is hypothesized to be greater when temperature increases. Method and materials.

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