Friction

Question 1

What is friction?

Answer 1

Friction is a contact force which opposes the motion of an object. It acts in the opposite direction of an object.

Question 2

Ways of reducing friction in everyday objects?

Answer 2

Using lubrication - adding oils between surfaces. And rollers - allowing surfaces to roll rather than drag or slide over each other.

Question 3

Ways of increasing friction?

Answer 3

Rougher surfaces increases friction (wood rather than tiles), also how hard the forces are being pushed together.