7/31/2019 Heat Exercise
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Friday 13/07/2012
Exercise :
The bar chart in diagram 1 shows the temperature of a beaker ofwater at different times.
Temperature C
60 -
50 -
40 -
30 -
20 -
10 -
0 2 4 6 8 10 12 14 16 Time
(a) What is the trend of changes in the temperature of the water shown
by the bar chart?
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(b) State one reason (inference) for the changes in the temperature
from .
i. 2 to 8 minutes
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ii. 8 to 16 minutes
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(c) State what is observed ( responding variable).
7/31/2019 Heat Exercise
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(d) Predict the temperature of the water at the 20 th minutes.
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