Advanced Science Primary 6 Interactions

An object weighs 600 N on Earth. If it is brought to a planet where the gravitational pull is 1/3 that of Earth, what will its weight and mass be? (Assume mass on Earth is 60 kg).

A Weight: 200 N, Mass: 20 kg
B Weight: 1800 N, Mass: 60 kg
C Weight: 200 N, Mass: 60 kg
D Weight: 600 N, Mass: 20 kg
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Worked Solution

Step 1: Mass is constant regardless of location (60 kg). Step [2-9]: Weight = Earth weight × (Planet Gravity / Earth Gravity). Step [2-9]: 600 N × 1/3 = 200 N.

Correct answer: Weight: 200 N, Mass: 60 kg

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