Newton's Laws of Motion

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 another name for Newton's First Law of Motion?

Back

Law of Inertia.

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 force pulls objects toward the Earth?

Back

Gravity.

Front

Why do heavier objects fall faster than lighter objects in a vacuum?

Back

In a vacuum, there is no air resistance, so all objects fall at the same rate regardless of their mass.

Front

What is air resistance?

Back

A force that opposes the motion of an object through the air.

Front

How does air resistance affect a feather falling?

Back

Air resistance slows down the feather, causing it to fall more slowly than heavier objects.

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

How many Laws of Motion did Newton propose?

Back

Three.