Laws of Motion (Newton)

Front

What is 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 a net external force.

Front

What is Newton's Second Law of Motion?

Back

The force of an object is equal to its mass times acceleration (F = ma).

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

What does 'force' mean in physics?

Back

A push or pull on an object that can cause it to change its motion.

Front

What is 'mass'?

Back

The amount of matter in an object, usually measured in kilograms.

Front

What is 'acceleration'?

Back

The rate at which an object changes its velocity.

Front

What happens to the motion of an object if no net force acts on it?

Back

It will maintain its current state of motion (either at rest or moving at a constant speed).

Front

What is an example of Newton's Third Law of Motion?

Back

When you jump off a small boat, the boat moves backward as you move forward.

Front

What is the relationship between mass and acceleration in Newton's Second Law?

Back

As mass increases, for the same amount of force, acceleration decreases.

Front

What is an example of Newton's First Law of Motion?

Back

A soccer ball will not move until someone kicks it.