• 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
• Level: GCSE
• Subject: Maths
• Word count: 1430

# The aim of my experiment is to investigate the affects of the drop height on the efficiency of a bouncing ball.

Extracts from this document...

Introduction

Aim: The aim of my experiment is to investigate the affects of the drop height on the efficiency of a bouncing ball. Factors: Material (Elasticity): The material that the ball is made of can alter the efficiency, because different materials have different elastic strengths. This means that they will react differently when they bounce. If the ball is made of a material that is very hard, then it will bounce more efficiently, than a ball made of a softer material. This is because a ball made of a softer material will change shape when it hits the floor. A harder ball will not do this, but it will lose more of its kinetic energy, as sound. A different ball will also have a different mass. A ball with a larger mass will have more momentum when it hits the earth after it is dropped, and a larger force stopping it from bouncing back up again. To make sure that its fair for each drop I will use the same ball each the time. Surface: If the ball is bouncing a hard surface, then it should be more efficient than if it was bouncing on a softer surface. ...read more.

Middle

Make sure you wear goggles and body amour in case an armed robber invades the classroom and decides to shoot you for fun, or a little fairy man jumps on your back and tries to stab you with a 4 inch poison dagger! Prediction: In this experiment, the ball will bounce higher, as the drop height increases. This is because the ball has gained more gravitational potential energy, to be transferred into kinetic energy, but the ball will lose more energy when it bounces, because there is more of a force pulling it downwards, and forcing it to change shape. As it is stated in the laws of conservation of energy, the kinetic energy is not lost, but transferred into less useful forms of energy. As the drop height is doubled, the bounce height will also double, but it will become less efficient. Preliminary Work: For my preliminary work, I tried out the experiment that I was going to do to investigate the effects of the drop height on the efficiency of a bouncing ball. I only repeated the results twice, which I will increase on my true experiment to three times. This is because, I felt that the results could be more accurate. ...read more.

Conclusion

This is because the ball changes shape, and 'uses' some of the energy. Because some of the energy is being lost, it means that the transfer of energy is less efficient, so the bouncing of the ball is less efficient. This means that my prediction was correct. The graph also shows that the balls efficiency changes, and it becomes less efficient. Evaluation I think that this experiment went very well. The method worked well, and the results were better than expected. To improve the accuracy of the recordings, the bounce could be recorded on a video recorder, so that it could be played back in slow motion, and paused if necessary, so that you can see exactly how high the ball bounced. There were only a few anomalous results, which can be seen on my graph. I don't think that I would benefit from taking any more results, if I were to do this experiment again. I think that it worked well, and the method wouldn't need changing. However, to make it easier to record the results, I would set up a video recorder, as shown in the diagram below. This should make sure that the results are accurate, as it could be played back as many times as possible, to reduce the possibility of human error. This could account for some of the anomalous results (shown on the graph). Paul Jefferyes 28/04/07 1/7 ...read more.

The above preview is unformatted text

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

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

1. ## What affects the stopping distance of a toy car

I will use a clamp stand to alter the height, as with this I can get the exact height I want without having to fiddle about with countless blocks of wood. This experiment is quite harmless, but there are always rules that you must abide by to keep safe in the lab.

2. ## Bounce efficiency test on various surfaces.

I have chosen to use surfaces as my variable. Method We will by eye drop a ball from a definite height (from the same person each time) onto a different surface at least 3 times, we then observe how high it rebounds , take the results , then insert and compare them in a table.

1. ## Investigation in to Gravitational potential energy.

In all situations we were unable to ever find the even near correct recording of the time it took for the object to drop from the adjusted height till impact thus causing the recorded speed of the object to be inaccurate because of the interference of faulty stopwatches, human reactions

2. ## What affects a persons ability to estimate?

There could have been many over and under estimated results which when averaged out made a reasonably close mean average. - The most reliable data was the Year 11 lower set with a Stan.Dev of 1.63 From examining the investigation of 'Lower set Year groups' I can state that the Year 11 group results were the most accurate.

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

I think this is because as I know from my background scientific knowledge that when the gas inside the ball heats up, the volume of the gas expands and the molecules move faster which will causes them to hit the sides more often and harder.

2. ## Investigate how the height of drop affects the height of bounce.

to gather speed if dropped from a higher height due to the acceleration of gravity and this will increase the height at which the ball bounces back up as the ball will bounce up with a greater force. * The order will consist of the fact that the lower the

1. ## What factors affect the efficiency of the bounce of a ball?

Here are some we needed to consider when conducting the test. * The temperature of the ball. Make sure the temperature of the ball stays the same each time it is dropped as this could affect the weight and shape of the ball which would create anomalous results * The temperature of the surface.

2. ## What relationship is there between the height a table tennis ball is dropped from ...

Method * Setup the equipment so that the clamp stand has one clamp clamped onto the bar and a 'claw' clamp on the end of the bar holding onto the metre rule, just so it doesn't fall over. * The next step is to start by dropping the table tennis ball (or getting someone else to drop it for you)

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