Advanced Science Primary 4 Energy

Which of the following statements about heat and temperature is correct?

A Temperature is a form of energy.
B Heat is the measure of how hot or cold an object is.
C An object can gain heat without its temperature increasing during a change of state.
D Heat always flows from an object with more heat to one with less heat.
Show Worked Solution

Worked Solution

Step 1: Evaluate each statement. Step [2-9]: During melting or boiling, a substance gains heat, but the temperature stays constant until the state change is complete. Step [2-9]: This "latent heat" is used to break bonds rather than increase kinetic energy.

Correct answer: An object can gain heat without its temperature increasing during a change of state.

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