Unit B Definitions

Front

Acceleration

Back

The rate of change of velocity of an object.

Front

Collision

Back

An event where two or more bodies exert forces on each other in a relatively short time.

Front

Elastic Collision

Back

A collision where there is no net loss in kinetic energy in the system.

Front

Equals

Back

Being the same in quantity, size, degree, or value.

Front

Force

Back

A push or pull upon an object resulting from the object's interaction with another object.

Front

Free fall

Back

The motion of a body where gravity is the only force acting upon it.

Front

Gravity

Back

The force that attracts a body toward the center of the earth, or toward any other physical body having mass.

Front

Impulse

Back

Change in momentum resulting from a force applied over a period of time.

Front

Inelastic Collision

Back

A collision where part of the kinetic energy is changed to some other form of energy in the collision.

Front

Inertia

Back

The resistance of any physical object to any change in its velocity.