Which everyday example is a non-contact force?
AThe pull of gravity
BThe push of a hand
CThe pull of a rope
DThe force of the wind
Answer & Solution
Correct answer: A. The pull of gravity
1. A contact force must touch the object before it can change anything about it.
2. A non-contact force does not have to touch an object to cause a change.
3. Gravity acts across empty space, which is why the Earth can pull the Moon.
4. Hands, ropes and wind all have to be in contact with the object before they act.
_Source: Siyavula Physical Sciences Grade 11 (Everything Science, CC BY 4.0), Chapter 2: Newton's laws_
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