Friction and gravity

Front

What is mass?

Back

The amount of matter in an object.

Front

What is gravitational force?

Back

The force acting between any two objects in the known universe all the time.

Front

What is static friction?

Back

The force that keeps you from moving.

Front

What unit measures force?

Back

Newton.

Front

What happens to gravitational force as mass increases?

Back

It increases.

Front

What is weight?

Back

The force of gravity acting on an object's mass.

Front

What is friction?

Back

The resistance that one surface or object encounters when moving over another.

Front

What are the types of friction?

Back

Static friction, sliding friction, rolling friction, and fluid friction.

Front

What is sliding friction?

Back

The force that opposes the motion of an object sliding over a surface.

Front

What is rolling friction?

Back

The force that opposes the motion of a rolling object.