Student Activity - Effect of Temperature on a Bouncing Ball
- One Happy Ball
- One Sad Ball
- One thermometer
- Four 250 ml beakers
- 500 ml of water
- One Hot Plate
- One Hot Hand or comparable mitt for holding a hot beaker
- One meter stick
- Roll of masking tape
- Measure the air temperature of the room. Record in your data chart
- Tape the meter stick to a wall or a table so that the bottom of the meter
stick is touching the floor at zero centimeters.
- Hold the Happy Ball with the tongs at the 100 cm mark of the meter stick,
but a few centimeters away from the meter stick.
- Drop the ball and observe the height of the first bounce. Record this number
in your data chart.
- Repeat step 4 two more times.
- Repeat steps 3-5, but use the Sad Ball.
- Fill a 250 ml beaker halfway to the top with ice. Add 100 ml of water. Submerge
the Happy Ball in the ice/water mixture for 5 minutes. Take the temperature
of the ice/water mixture and record in your data chart.
- Remove the ball with the tongs and immediately drop it from the height of
100 cm and observe the height of the first bounce. Record this number in your
data chart. Immediately repeat this two more times. (Note: if you believe
that the ball has warmed significantly, replace the ball in the water for
one minute to re-chill it.) 9. Repeat steps 7-8 using the Sad Ball.
- Repeat steps 7-9 using water heated or cooled to the temperatures of 10
degrees C, 50 degrees C, and 100 degrees C.