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

I am going to do an experiment on how high a squash ball bounces at different temperatures from the same height.

Extracts from this document...

Introduction

Karl Thierry

Squash balls

Introduction

I am going to do an experiment on how high a squash ball bounces at different temperatures from the same height.

Theory

When a squash ball hits the wall the air molecules inside the ball heat up and make the ball warm.  When they move faster they hit the rubber wall harder therefore makes the ball hotter.  The reason why the ball moves faster is that when the ball hits the wall it causes friction and the molecules move faster an hit the wall harder therefore hotter molecules move faster and cold molecules move slower.  When the ball is cold there is low internal pressure and when the ball is hot there is high internal pressure which makes the ball bounce better, it also makes it bigger.  More energy is absorbed when the ball is hot; the ball also expands when it gets hotter.  A ball

...read more.

Middle

Apparatus

Method

  1. Set apparatus.
  2. Put ball in beaker.
  3. Wait till temperature reaches 100°C.
  4. Use tongs to take ball out of water.
  5. Drop ball from a height of 1m.
  6. Put ball back into beaker and wait for five minutes.
  7. Repeat process 2 more times.
  8. Lower temperature to 80°C and wait for five minutes.
  9. Take ball out and drop from 1m.

10.Repeat as above for temperatures-60°C, 40°C, 20°C and 0°C.

12. Put results into a table.

Fair test

I am going to use the same ball and drop it from the same height.  The only thing I am going to change is the temperature.

Accurate

I repeated the experiment 3 times, then took an average result to remove any odd results.

Number and range

I have chosen this range because it is easier to prove the height that the ball bounces.

Safety

...read more.

Conclusion

°C the ball bounced at 28cm, 26cm and 28cm, and at 80°C the ball bounced at heights of 59cm, 58cm and 57cm.  My evidence is good enough to support my conclusion because it is accurate and reliable, it was also a fair test and there was a good number and range.  This means that I could use my results to look and test my theory.  I am going to extend my findings by heating up a cricket ball.  I am going to explain an experiment that

could measure the same thing in a different way e.g. instead

of measuring the height of the bounce at different temperatures I am going to find out the distance of the bounce against a wall with the same force and with different temperatures.

...read more.

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

See related essaysSee related essays

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

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

    The bounce height for all the temperatures will be much less than the original dropping height because energy is lost converting elastic potential energy into kinetic energy. Risk assessment To ensure a safe investigation I will make sure that nobody is around our working area so nobody could possibly get hit by the ball.

  2. The effect of drop jump height on spinal shrinkage.

    The implications of which can be readily explained in that the spine is at its most vulnerable in the morning (Reilly et al., 1984). Lying supine throughout the night relieves a proportion of the gravitational pull upon the spine, enabling the spinal column to return to its normal length.

  1. Mayfield High School

    Weight (kg) 8 Angus Female 15 1.55 50 8 Biffle Female 12 1.63 42 8 Cassel Female 5 1.48 46 8 Dickenson Female 18 1.25 35 8 Grant Female 19 1.50 57 8 Healy Female 13 1.67 52 8 Houseson Female 14 1.60 64 8 Kay Female 23 1.63 47

  2. Mayfield High School

    This scatter graph shows pupils' IQ and average Key Stage 2 results. It shows a strong positive correlation which therefore means that the greater the IQ, the greater the average Key Stage 2 results are. The R� of the trend line relates to the how the average Key Stage 2 results are effected by the IQ.

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

    I think this because the ball will reach its terminal velocity and will be hitting the surface at the same velocity every time because the weight and the resultant force (air resistance in this case) will be equal. Below this particular height I think the bounce of the ball will

  2. I intend to carry out research to find out if 'Men do more work ...

    The law, due to be passed in April, it has been introduced because it is likely to provoke a revolution in family affairs in a country where 40% of men reportedly do no housework at all. It will oblige men to "share domestic housework and the care and attention" of

  1. What factors affect the bounce height of a squash ball

    Therefore all this GPE can be converted into kinetic energy, allowing it to bounce higher. As well as this, when a ball is dropped from a higher height, the ball is compressed more when it comes in contact with the ground, and therefore the compressed air can again make it bounce back higher.

  2. Different races have different intellects.

    had quite different histories which have subjected them to different selective social and economic pressures make it highly likely that their gene pools differ from some genetically conditioned behavioural characteristics, including intelligence or abstract reasoning ability." (Block & Dworkin, 1976, p99).

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