Bouncing Ball Experiment
Our simple experiment is to drop a ping pong ball weighed at 3 grams
from a height of 1 metre then 90cm, 80cm, 70cm, 60cm, 50cm, 40cm and
of course zero cm. From dropping the ball we can see how high the ball
will bounce to after having a loss or gain of energy due to sound or
movement of the ball as it hits a hard surface. I will drop the ball 3
times altogether, on the second bounce I will look specifically at the
point it is likely to bounce to so the results will be more accurate.
After doing this three times I will then take an average to make it
more accurate. This will then even out any freak results, which occur.
While completing the experiment I will be taking note of the bounce
height of the ping-pong ball in a table of results. I will also make a
table of results for the amount of energy lost/gained.
We are trying to find out what will happen to the energy at potential
and kinetic points in the ball's bounce. We will be investigating what
type of energy is lost or gained, and whether or not a factor that is
changed in the investigation affects the results such as a change of
surface. Prior to this investigation we did preliminary work on a
computer program where you pressed go on the computer so that it
dropped the ball and it would automatically stop at the highest point
of its bounce. You could select the measurement you dropped the ball
from and it gave very accurate results.
Diagram
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Hypothesis
I predict when doing this experiment that the higher we drop the ball
from, the higher the ball will bounce to, because more potential
energy is gained from a greater height and therefore it will have more
kinetic energy at the surface and may bounce higher but energy is
still lost to heat, movement, sound and speed, therefore the ball will
never reach its original height that it was dropped from, when no
I decided to use one type of ball, so the weight was constant. And the
* No energy is lost e.g. sound and heat which would be a result of
... for a clue as to where the ball will be hit. 'I think you're right,
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