Q:

What does friction do?

A:

Quick Answer

Friction is a force that tends to stop motion or resist the motion of objects. Friction is always a negative force, which means it acts in a direction opposite to the direction of the force applied to the object. Movement of objects through air and liquids gives rise to friction.

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Full Answer

Although friction is not always desirable, it does have a role to play in our lives. Walking would be impossible without friction. The friction between the wheels of a car and the road make it possible to drive a car. Writing on paper with a pen is also possible due to friction.

Types of friction include static, rolling and kinetic friction.

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