Investigating Squash Balls

Hypothesis

The hotter a squash ball gets the higher the pressure becomes inside the ball and the higher it wil bounce.

Equipment

 

  • Squash ball
  • Metre Rule
  • Clamp stand
  • 250ml beaker
  • Thermometer
  • Kettle

Method

  1. Fix the metre rule into the clamp stand (make sure 0cm is at the bottom)
  2. Pour water into the beaker, adjust the temperature of the water to 20oC.
  3. Place the squash ball into the water for a minute  (to allow time for it to reach the desired temperature.
  4. Quickly dry the squash ball and drop it from 1M (the top of the metre rule)
  5. Measure how high it bounces.
  6. Repeat this at 25, 30, 35, 40 and 45oC
  7. You should take 3 readings at each temperature so that you can calculate mean values.

Risk Assessment

The risk is with the hot water, take care to avoid scolds.


 

 

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