Friction

Front

What direction does friction act relative to motion?

Back

Friction acts in the opposite direction to motion.

Front

What is the force that acts in the opposite direction of motion when two surfaces come in contact?

Back

Friction.

Front

What is the coefficient of static friction if it takes 44 N of force to move a box that weighs 86 N?

Back

0.51.

Front

What is the force of friction between a block of ice that weighs 950 N and the ground if μ = 0.12?

Back

114 N.

Front

What are the units on the force due to friction?

Back

Newtons.

Front

Define friction.

Back

Friction is the force that opposes the relative motion of two surfaces in contact.

Front

What is static friction?

Back

Static friction is the frictional force that prevents two surfaces from sliding past each other.

Front

What is kinetic friction?

Back

Kinetic friction is the frictional force acting between moving surfaces.

Front

What factors affect the force of friction?

Back

The nature of the surfaces in contact and the normal force acting between them.

Front

How do you calculate the force of friction?

Back

Force of friction = coefficient of friction × normal force.