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 with the same speed and in the same direction unless acted upon by an unbalanced force.

Front

What is Newton's Second Law of Motion?

Back

The acceleration of an object depends on the mass of the object and the amount of force applied. It can be expressed with the formula F = ma (Force = mass x acceleration).

Front

What is Newton's Third Law of Motion?

Back

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

Front

What is inertia?

Back

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

Front

How does mass affect acceleration?

Back

The greater the mass of an object, the more force is required to accelerate it.

Front

What happens when you push down on a chair?

Back

You exert a force downwards, and the chair exerts an equal force upwards on you.

Front

What is an example of Newton's First Law in everyday life?

Back

A soccer ball remains at rest until a player kicks it.

Front

What is an example of Newton's Second Law in action?

Back

A heavier car requires more force to accelerate than a lighter car.

Front

What is an example of Newton's Third Law in action?

Back

When you jump off a small boat, you push the boat backwards as you move forward.

Front

Why can't you feel the Earth move when you jump?

Back

The Earth has much more mass than you, so its movement is imperceptible.