Newton's First Law

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 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.

Front

How does mass relate to inertia?

Back

Objects with greater mass have greater inertia, meaning they are harder to change their state of motion.

Front

What happens to an object at rest when no force acts on it?

Back

It remains at rest.

Front

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

Back

It continues to move at a constant velocity in a straight line.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes a change in the motion of an object.

Front

What is a net force?

Back

The net force is the overall force acting on an object when all the individual forces are combined.

Front

How do you calculate net force when two forces act in the same direction?

Back

You add the magnitudes of the two forces.

Front

What is the relationship between force and motion?

Back

A force is required to change the motion of an object.

Front

What is the significance of Newton's First Law in everyday life?

Back

It explains why seatbelts are important; they keep passengers in motion when a car suddenly stops.