Unit 4 Vocabulary Review (Amplify Forces and Motion)

Front

Speed

Back

how fast an object is moving

Front

Friction

Back

A force between an object and the surface it's moving over

Front

Collision

Back

The moment when two objects hit each other

Front

Force

Back

A push or a pull that can change the motion of an object

Front

Mass

Back

The amount of matter that makes up an object

Front

Acceleration

Back

The rate at which an object's velocity changes over time

Front

Velocity

Back

Speed in a particular direction

Front

Inertia

Back

The tendency of an object to resist changes in its state of motion

Front

Gravity

Back

A force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth

Front

Momentum

Back

The quantity of motion an object has, calculated as mass times velocity