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

Bouncing balls

Extracts from this document...

Introduction

Planning (P) For my physics coursework, I have been asked to investigate the factors, which affect the way in which a ball will bounce. I looked into a few different factors, including height of the ball, landing surface of the ball, and in depth, the height from which the ball is bounced. I also looked at how the temperature change takes place while bouncing the ball. I took my final point further and decided to investigate the temperature of the ball while bouncing. My input variable is going to be the temperature, which I will be changing. Prediction: After doing some background research on different types of balls, I found out a reason why balls actually bounce. All balls bounce because of the air and gravity. The air makes the ball bounce. If I bounce a ball in the air, it will not stay up and bounce back down. The reason for this is gravity. If I bounce the ball hard, it will go up high in the air but if I bounce the ball softly, it will not really bounce at all. The reason for this is because balls have elastic in them. ("The elasticity is an objects property of changing shape when the deforming force is moved"). ...read more.

Middle

the temperature will go up in 20's instead of 10's because the temperatures that I have chosen did not give me an accurate result in my preliminary investigation. Results (O) In my team, we made sure that we did our experiment safely. To make our investigation fair, we decided to do our investigation more than once; we actually did it three times. Below is a table of my results: Number of times the ball bounces Temperature (�C) Experiment 1 Experiment 2 Experiment 3 Room Temperature - 25�C 5 5 6 45�C 5 6 5 65�C 5 5 5 85�C 6 6 6 As you can see from my table, my results did not show enough evidence but I did realise at the temperature 85�C, that if I did another test on 105�C, then I would be able to see that the number of times the ball bounces will increase. I can see form my table that doing my experiment three times gave me an accurate result. There are a few ups and downs in my table but only by one unit. This made my results more predictable. Below I have draw four graphs. Three of the graphs are for each experiment and one is for all three experiments in one. ...read more.

Conclusion

This will give me an accurate result because the higher the temperature the more number of bounces you will get. * The next thing I will want to change is the ball. After doing the experiment I realised that a tennis ball was not a great ball to do the experiment with. Tennis balls do not bounce as much. So I will use a different type of ball which actually bounces a lot. I would also want to remove the fur of the tennis ball, because I think that the fur is the only thing that prevents the tennis ball from being heated up from the inside. * After looking at the ball, I also realised that the tennis ball did not get the hot temperature right through it because of the fur. This could be another reason why my results were not accurate. * If I want, I can also change the height the ball is dropped from, because if I drop the ball from the height of 1-meter, then the ball will bounce more than the ball dropped from a 2-meter height. This is not a good idea, but can change my results and help me prove my point. These are the main things I would want to change. I'm sure that if I have applied all these to another experiment, I will get an accurate result. Nitu Kapoor Science Bouncing Balls ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Mechanics & Radioactivity 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 AS and A Level Mechanics & Radioactivity essays

  1. Peer reviewed

    Catapult Investigation

    3 star(s)

    This part of the experiment is not entirely correct. Research has shown that as bands get stretched more and more they tend to lose some of their pulling power, this would suggest that band would become weaker as the experiment goes on. 3. The weight fired should be fired across the same surface. Different surfaces have different friction level.

  2. Investigating the factors affecting tensile strength of human hair.

    Those who produce virtually no eumelanin have a red to orange colour depending on the density of the pigment in the hair fibre. Red haired people who have a greater relative proportion of eumelanin production have a deeper red to red brown colour.

  1. Helicopter Investigation

    = 5 Timings 1.14 + 0.99 + 1.15 + 1.02 + 1.10 = 5.4 Average 5.4 / 5 = 1.08 Graphs/Conclusion I have formed out a graph to show the results of the five sets of results. Another graph is shown on the next page, except this is a graph,

  2. Multi-bladed Pumps. Does the number of propellor blades affect the efficiency of a ...

    Engines Work General information http://science.howstuffworks.com/fire-engine.htm * Bedfordshire & Luton Fire and Rescue Service My local fire brigade, who I actually went to visit to find out more http://www.bedsfire.gov.uk/index.htm * American Turbine: Pump Calculations Web-based program for working out quantities in pumping http://americanturbine.net/formulacalc/pump.htm * Impeller Design The engineering that goes into

  1. In this report I will start by exploring the history of the Computerised Tomography ...

    The Filters: By looking at figure 1.6 we can see another apparatus positioned between the collimator and the X-ray tube. This is the filter and its job is to remove the long wavelength X-rays produced from the X-ray tube.

  2. How does the viscousity of a liquid change with temperature

    When a liquid is travelling in a pipe as in our experiment, the transition from laminar to turbulent motion depends on the diameter of the pipe and ball bearing in comparison to each other, and the velocity, density and viscosity of the liquid.

  1. Parachute Investigation

    Lighter weights on the other hand, would reach a terminal velocity more quickly, because of having less gravity acting on them due to them weighing less and so fall at a slower speed.

  2. Radiocarbon Dating

    Furthermore the scintillator produces a flash of light when it meets with a beta particle. Between two photomultipliers a sample passed between them, the count can only be made when both devices register the flash of light. The last technique is accelerator mass spectrometry, which is a modern technique of

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