Weight vs MassEasyQuestion 30738
Question
An astronaut's mass on Earth is 70 kg (g = 9.8 m/s²). On Moon (g = 1.63 m/s²), the astronaut's weight is:
- A70 kg
- B11.4 kg
- C686 N
- D114.1 NCorrect
Correct answer
114.1 N
Explanation
Weight = mg_Moon = 70 × 1.63 = 114.1 N. Mass remains 70 kg everywhere — it is an intrinsic property. Weight (force) changes with local g.