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Aim: To investigate the rate of cooling of water in two different containers.

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  • Essay length: 626 words
  • Submitted: 05/02/2010
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GCSE Forces and Motion

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PHYSICS LAB REPORT

The rate of cooling of water in two different containers

Aim: To investigate the rate of cooling of water in two different containers.

Apparatus:

==> A testube

==> A beaker

==> 2 digital thermometers (? 0.05?C)

==> A testube holder (wooden)

==> Measuring cylinder

==> Warm water ( around 45 - 50?C)

==> 2 stopwatches

Procedure:

1. Pour 20ml of water into a measuring cylinder and then pour it into a beaker.

2. Pour another 20ml into a testube.

3. Place thermometers in both the containers and record the starting temperatures.

4. Start the stopwatches simultaneously.

5. Just when thirty seconds get over, record the temperatures that the thermometers reflect instantaneously.

6. Continue this recording every thirty seconds.

7. Stop after 10 minutes.

8. At the end observe the difference in the total decrease in temperature.

Modifications in procedure:

==> The readings were simultaneously recorded every 30 seconds for direct comparison.

==> The readings were taken for ten minutes.

==> Both the containers were exposed to the same material, wood,

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