Front

Force

Back

something that changes an object’s state of rest or motion

Front

Friction

Back

the force that is created when two surfaces rub against each other

Front

Motion

Back

movement; a change in an object’s position or location over time

Front

Momentum

Back

the amount of motion an object has

Front

Energy

Back

the ability to do work

Front

Law of Inertia

Back

an object at rest will stay at rest, and an object in motion will stay in motion unless a force is introduced

Front

Acceleration

Back

the rate of change in an object’s velocity over time

Front

Action

Back

a force that acts upon an object

Front

Reaction

Back

a force that acts upon an object in opposition to an action

Front

Speed

Back

the rate at which an object is moving