Basic Concepts of Force

Front

Force

Back

Any push or pull that causes an object to move, stop, or change direction.

Front

Balanced Forces

Back

The forces acting on an object that are equal in size and opposite in direction, canceling each other out (no movement).

Front

Gravity

Back

The force that pulls all objects in the universe toward one another.

Front

Friction

Back

A force that opposes, or acts against, motion when two objects rub against each other.

Front

Unbalanced Forces

Back

Forces that are not equal (motion occurs).

Front

Newton's First Law of Motion

Back

An object at rest stays at rest and an object in motion stays in motion unless acted upon by an unbalanced force.

Front

Inertia

Back

The tendency of an object to resist a change in motion.

Front

Mass

Back

A measure of the amount of matter in an object, which affects its resistance to acceleration.