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

# My aim is to investigate how the temperature has an effect on the height of the bounce of a squash ball.

Extracts from this document...

Introduction

Heat on ball Investigation

Introduction Originally Gravitational potential energy (mph) is stored in a ball before its released. as  the ball falls and the speed increases The potential energy of the moving ball is changed to kinetic energy (1/2mv2) then it looses all the potential energy as soon as is touches the floor. If there is no energy loss the energy (I.e. P.E and K.E) remains the same

The ball deforms and slows down as it touches the ground. Here the balls kinetic energy is causing the ball to deform. When the ball is deformed some of the energy is stored as potential energy and another name for this energy is elastic potential energy and this in some cases this energy is changed into heat and sound and some is converted to heat and sound.

As soon as the ball losses all its speed and reaches its highest deformation only then it looses its kinetic energy and it stops moving. And when some of its energy Is changed to heat and sound its kinetic energy decreases than its original gravitational potential energy. Here all the energy (elastic PE + heat + sound) remains the same.

And then when the ball turns back into its original shape the elastic potential energy is then changed to kinetic energy.

As soon as the ball leaves the ground it will begin to slow down as it rises and its kinetic energy is changed back to gravitational potential energy. Since some of its original energy has been changed to heat and sound it will finish up with less gravitational energy than it began with i.e. the rebound height is less than the starting height.

A solid expands when it’s heated.

Middle

Test 1

(cm)

Test 2

(cm)

Test 3

(cm)

Average

(cm)

1

26.0

26.0

27.0

26.3

2

27.0

27.0

27.0

27.0

3

28.0

28.0

28.0

28.0

4

28.0

28.0

28.0

28.0

5

28.0

28.0

28.0

28.0

I can see from this that thermal equilibrium was reached at 3 minutes because this was the point that 28cm at a bounce height was reached and because the height didn’t increase more than 28cm it means that thermal equilibrium was reached. This is why I am going to leave the ball in the water bath for 3 minutes for it to reach thermal equilibrium.

I Am going To investigate a appropriate height to let go of the squash ball , I will let go of  the squash ball at 20°C, 40°C and 70°C from different heights to find a height that worked well for all the temperatures. The heights I let go of the ball from were: 0.50m, 0.75m, 1.00m, 1.25m and 1.50m. To ensure the temperatures of the ball were correct I kept the ball in the water bath for 3 minutes as I understand from my earlier original results that 3 minutes is the time it takes the ball to reach thermal equilibrium.

You can understand from this  that 1 meter is a appropriate height that I can easily record all the heights down to the lowest temperature (0°C) and gives a first-class bounce height for 70°C so it satisfies both ends of the series of temperatures. This height gives a good choice of results so they can be shown easily in a graph and compared. I chose not to use the higher heights since even though they would also give a precise range of results and I would easily be able to understand the height of the ball at a 0°C temperature, it was unsuitable for my experiment since it meant that I would keep getting up onto the table to be able to reach the heights.

Conclusion

To provide additional relevant evidence I could:

·        Use temperatures that go up in 5°C instead of 10°C so I would have more information to show the relationship between the temperature of a squash ball and its bounce height.

·        I could have a better way of seeing the bounce height by having a video camera set up about a metre away from the experiment to see where about the ball bounced and then have another camera close up to see a closer reading of the bounce height. When I play back the video, I would put it on slow motion and show it frame by frame recording the heights until the bounce heights start to fall. Then I would take the maximum recording I had for that temperature and that would be the bounce height. This would be very accurate because I would see a very close up measurement and because it would be in slow motion and frame by frame it clearly showed the bounce height and could clearly be read from the bottom of the ball. This is more accurate than using your eyes because the ball would bounce very quickly and you only have a split second to read the height and is very difficult.

MOHAMMED ABDUL KALIK SHAHEEN

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

# Related GCSE Forces and Motion essays

1.  ## Investigating factors that affect the bounce height of a squash ball

5 star(s)

each other out, so there will be no net force affecting the ball. Newton stated that if the force acting on an object is zero or the resultant force acting is zero, the object will stay still or move at constant speed in a straight line (constant velocity).

2. ## Bouncing Ball Experiment

This is impossible. Either the coefficient to restitution that was worked out is incorrect, which would mean that the first three results are inaccurate or subsequent results were inaccurate. These inaccuracies could have been caused by external factors or parallax error even though efforts were made to avoid parallax error

1. ## The effect of the temperature on the viscosity of the syrup.

Once the sphere has reached the end, separate it from the syrup. To do this, hold the magnet by the side of the measuring cylinder so that the sphere becomes attracted to it. Once it becomes attracted, drag the magnet upwards so that the sphere will come up with it as well.

2. ## The Flywheel as an Alternative Energy Storage Device for Electric Vehicles (EV): Problems Associated ...

For example, consider a car going up a slope. If the flywheel is mounted horizontally, and turning in a direction indicated by the arrow below when the car approaches a slope, the torque that the car has on the flywheel will create a change of momentum ?L, in addition to the original angular momentum of the flywheel.

1. ## Factors affecting the bounce of a ball

cm above surface Crazy ball 79.25 152.75 Squash ball 12.25 27.50 Plastic ball 24.00 72.25 Wooden ball 16.50 32.25 Graphical Representation of Data Graph 1: Graph showing the relation between the height of bounce and the material of the ball Graphical Analysis: The graph clearly depicts that the ball with

2. ## Investigation into the effect of temperature on viscosity

A suitable mass of ball also needed to be found as the greater the mass the faster the ball fell, therefore adding to the inaccuracies of timing caused by the slow human reaction. A ball of mass 1.5g and with a diameter of 7.13mm was decided upon An appropriate drop distance was also found.

1. ## An investigation to find how temperature affects the bounciness of a squash ball.

I will be able to use the results and practical ideas to improve my method for the actual experiment and also to improve my predictions. Here are some measurements from the preliminary work which will help me plan an appropriate strategy: First I experimented with releasing the squash ball from different heights.

2. ## Squash Ball and Temperature Investigation

A gas can be expanded or compressed. As the ball strikes the floor the bottom of the ball is pushed in. The material is pliable and deforms (bends). The compressed (pressed in) ball has less volume than the original uncompressed ball. • Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to 