Newton's First Law: Reteach

Front

What is Newton's First Law of Motion?

Back

Newton's First Law states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by an unbalanced force.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. It is directly related to the mass of the object.

Front

Does Newton's First Law apply to moving objects only?

Back

No, it applies to both moving and nonmoving objects.

Front

What is the net force when two equal forces act in opposite directions?

Back

The net force is 0 because the forces cancel each other out.

Front

What kind of objects have inertia?

Back

All objects with mass have inertia.

Front

What happens to an object in motion if no unbalanced force acts on it?

Back

It will continue to move in a straight line at a constant speed.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to accelerate, change direction, or change its state of motion.

Front

What is an example of an object at rest?

Back

A book lying on a table is an example of an object at rest.

Front

What is an example of an object in motion?

Back

A car driving down the road is an example of an object in motion.

Front

What does it mean for forces to be balanced?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.