Friction

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

How does friction affect speed?

Back

More friction decreases speed.

Front

What are two factors that determine the amount of friction between two objects?

Back

Force and roughness between surfaces.

Front

What is an example of friction that is helpful?

Back

Brakes used on a bike, tires from a car on the road, and tread on the bottom of your shoes.

Front

True or False: Objects that are smooth have LESS friction than objects that are rough.

Back

TRUE.

Front

What type of friction do swimming fish experience?

Back

Fluid Friction.

Front

What is static friction?

Back

Static friction is the force that keeps an object at rest and prevents it from moving.

Front

What is kinetic friction?

Back

Kinetic friction is the force that opposes the motion of two surfaces sliding past each other.

Front

What is rolling friction?

Back

Rolling friction is the force that opposes the motion of a rolling object, like a wheel.

Front

What is fluid friction?

Back

Fluid friction is the resistance encountered by an object moving through a fluid, such as water or air.