← Physics (0625)
Q1 / 5
Mass & weight
Foundation
2 marks
Why is it incorrect to say a person 'weighs 60 kg'?
A
Weight is a force measured in newtons; kg measures mass — a 60 kg person weighs 600 N on Earth
B
It is perfectly correct — kilograms are a unit of weight
C
Weight and mass can both be in kg or N interchangeably
D
The problem is that kg is a metric unit — imperial weight would be correct
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