Friction

Question 1

Definition of Force

Answer 1

The push or pull on an object with mass causes it to change its velocity

Question 2

Definition of static friction

Answer 2

Is the force exerted on one surface by another when there is no
motion between the two surfaces.

Question 2

Definition of kinetic friction

Answer 2

A force that acts between moving surfaces. A body moving on the surface experiences a force in the opposite direction of its movement.

Question 3

Definition of coefficient of kinetic friction

Answer 3

The ratio of the friction force to the normal force experienced by a body moving on a dry, non-smooth surface.

Question 4

Definition of coefficient of static friction

Answer 4

The ratio of the maximum static friction force (F) between the surfaces in contact before movement commences to the normal (N) force

Question 5

What is the friction force?

Answer 5

A force that opposes motion when the surface of a body comes into contact with that of another body

Question 6

How do static and kinetic friction differ?

Answer 6

Static friction occurs when two surfaces are not moving relative to one another, whereas kinetic friction occurs when two things move.