Standard Science Primary 4 Energy

Two beakers, X and Y, contain water at 80°C. Beaker X has 100ml of water and Beaker Y has 500ml of water. Which statement is correct?

A Beaker X has more heat than Beaker Y.
B Beaker X has a higher temperature than Beaker Y.
C Beaker Y has more heat than Beaker X.
D Both have the same amount of heat.
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Worked Solution

Step 1: Temperature is the measure of hotness (both are 80°C). Step 2: Heat depends on both temperature and the amount of matter. Step 3: Since Y has more water at the same temperature, it contains more heat energy.

Correct answer: Beaker Y has more heat than Beaker X.

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