Question

Question
Use the table of temperatures measured in two areas of a house to answer the question.

Temperature in Different Areas
Area Temperature (ºC)
downstairs 22
upstairs 26
Which statement best explains the temperature difference?

(1 point)
Responses

Energy is transferred between the areas when the molecules touch.
Energy is transferred between the areas when the molecules touch.

Energy from the cooler air is transferred upstairs.
Energy from the cooler air is transferred upstairs.

The cooler air downstairs loses energy to the environment.
The cooler air downstairs loses energy to the environment.

Warm air rises by convection to the upstairs.
Warm air rises by convection to the upstairs.
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Answer 1

Correct choice: "Warm air rises by convection to the upstairs."

Explanation: Warmer air is less dense than cooler air, so it rises. This convective movement carries heat upstairs, making the upstairs temperature higher (26°C) than downstairs (22°C).