SSC MTS EXAM

SSC

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Friction is ____
A
the force that one surface exerts on another when they rub against one another.
B
the force that causes an object to accelerate.
C
when gravity causes an object to stop moving.
D
None of the above
Explanation: 

Detailed explanation-1: -The force that one surface exerts on another surface when the two surfaces rub together. Friction makes things STOP. What effects friction? Friction that occurs when an object rolls over a surface.

Detailed explanation-2: -Friction is the force that one surface exerts on another with the two surfaces rubbing together.

Detailed explanation-3: -When two objects rub against each other, the force of resistance is felt. This is called frictional force or friction. It is a contact force.

Detailed explanation-4: -Friction is a force which always opposes the motion.

There is 1 question to complete.