Newton's Laws

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 acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. (F = ma)

Front

What is Newton's Third Law of Motion?

Back

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

Front

What is the SI unit for force?

Back

Newton (N)

Front

What does mass measure?

Back

Mass measures the amount of matter in an object.

Front

What does weight measure?

Back

Weight measures the force of gravity acting on an object.

Front

Is mass the same on Earth and in space?

Back

Yes, mass remains constant regardless of location.

Front

What happens to an object's motion if no net force acts on it?

Back

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

Front

What is an example of an action-reaction pair?

Back

When you push against a wall, the wall pushes back with equal force.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.