Advanced 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 is hotter than Beaker Y.
B Both beakers have the same amount of heat.
C Beaker X has more heat than Beaker Y.
D Beaker Y has more heat than Beaker X.
Show Worked Solution

Worked Solution

Step 1: Temperature is the degree of hotness (both are 80°C). Step 2: Heat is a form of energy that depends on the amount of substance. Step 3: Beaker Y has more water at the same temperature, so it contains more heat energy.

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

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