Question

Answer the following question.

In the following table, every entry on the left column can match with any number of entries on the right side. Pick up all those and write respectively against A, B, C and D.

Name of the force		Type of the force
A	Force due to tension in a string	P	EM force
B	Normal force	Q	Reaction force
C	Frictional force	R	Conservative force
D	Resistive force offered by air or water for objects moving through it.	S	Non-conservative force

Answer 1

1. Force due to tension in a string: Electromagnetic (EM) force, reaction force, non-conservative force.
2. Normal force:
   Electromagnetic (EM) force, non-conservative force, Reaction force
3. Frictional force:
   Electromagnetic (EM) force, reaction force, non-conservative force.
4. Resistive force offered by air or water for objects moving through it:
   Electromagnetic (EM) force, non-conservative force.