Newton's First Law

Front

What is Newton's First Law?

Back

Newton's First Law states that an object at rest will remain at rest, and an object in motion will continue in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Front

What is inertia?

Back

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

Front

Do all objects have inertia?

Back

Yes, all objects with mass have inertia.

Front

What happens to an object if the forces acting on it are balanced?

Back

If the forces are balanced, the object's motion will not change.

Front

What is an unbalanced force?

Back

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

Front

Can Newton's First Law apply to nonmoving objects?

Back

Yes, Newton's First Law applies to both moving and nonmoving objects.

Front

What is an example of inertia in everyday life?

Back

A passenger in a car lurches forward when the car suddenly stops; this is due to inertia.

Front

What is the relationship between mass and inertia?

Back

The greater the mass of an object, the greater its inertia.

Front

What is the effect of friction on motion?

Back

Friction is a force that opposes motion, which can affect the inertia of an object.

Front

How does Newton's First Law relate to seatbelts in cars?

Back

Seatbelts help to counteract inertia by keeping passengers secured in their seats during sudden stops.