• 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

The fact that the stopping distance increases when the height of the ramp increases could be down to many scientific reasons, one of these is G.P.E. When I change the height of the ramp, I also change the G.P.E along with it.

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

We started at 20cm and then progressed by 0.2m every time until reaching 2m. We did not drop the ball by hand because this would not be avoiding variables like, temperature and height. The Actual results Height from which dropped from (cm)

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. ## An Experiment Investigating the Factors Affecting the Energy Transfer Involved In a Bouncing Ball

I found that this didn't give me very many results, so I decided to make the intervals smaller as said above. Results Of Preliminary Experiment Initial Height (m) 200 175 150 125 100 75 50 25 Average Height Bounced Back (3sf)

1. ## Bounce efficiency test on various surfaces.

golf ball 35% with a cricket ball 80% with a bounce ball as a soft ball would spring back but lose lots of energy through sound , heat , and change of shape. I have chosen to use surfaces as my variable.

2. ## Physics Coursework: Bouncing Balls.

Conclusion From my graph I have found that if I increase the height the ball was dropped from then the height of the bounce will also increase. Therefore the input variable is proportional to the outcome variable. The straight line of the graph remains constant throughout.

1. ## In this investigation I will conduct a number of experiments and collect a number ...

test, with one person dropping the ball and the other person seeing how high the ball bounced. Eight heights will be used as it will give a good range of results and will hopefully be able to see some patterns.

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

Before I dropped the ball for the preliminary, I dropped it once to find roughly where I should be looking to see the bounce height.

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