Standard Science Primary 6 Interactions

An astronaut travels from Earth to the Moon. Which of the following statements about his mass and weight is correct?

A Both his mass and weight remain the same.
B His weight remains the same but his mass decreases.
C His mass remains the same but his weight decreases.
D Both his mass and weight decrease.
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Worked Solution

Step 1: Mass is the amount of matter in an object and is constant regardless of location. Step 2: Weight is the gravitational force acting on an object. Step 3: The Moon has weaker gravity than Earth, so weight decreases.

Correct answer: His mass remains the same but his weight decreases.

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