Standard Science Primary 6 Interactions

An astronaut travels from Earth to the Moon. Which of the following correctly describes what happens to his mass and weight?

A Both mass and weight decrease.
B Mass stays the same, weight decreases.
C Mass decreases, weight stays the same.
D Both mass and weight stay the same.
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Worked Solution

Step 1: Define mass: the amount of matter in an object. This never changes. Step 2: Define weight: the gravitational force acting on an object. Step 3: The Moon has weaker gravity than Earth, so weight decreases.

Correct answer: Mass stays the same, weight decreases.

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