Which is an example of a non-contact force?
AMagnetic force
BFriction
CTension
DNormal reaction
Answer & Solution
Correct answer: A. Magnetic force
1. Friction, tension and normal reaction need surface contact.
2. A magnet attracts iron from across a gap with no contact.
3. So magnetic force is a non-contact force.
_Source: Selina Concise Physics ICSE Class 8, Ch 3 'Force and Pressure'_
Related questions
The instrument used to measure atmospheric pressure is the:Atmospheric pressure on the human body is roughly 100,000 Pa. Why don't we feel crushed?Friction acts:Action and reaction forces:Why are dams built thicker at the bottom than at the top?A camel can walk easily on desert sand because:Pressure at the bottom of a tall water column compared with a short column:Why is it easier to break a watermelon by pressing a needle than by pressing the palm?