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

Front

What is inertia?

Back

The tendency of an object to resist a change in its state of motion.

Front

What happens to a bowling ball rolled across a surface?

Back

It will eventually stop because of friction.

Front

What is the relationship between mass and inertia?

Back

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

Front

What is an unbalanced force?

Back

A force that causes an object to change its state of motion.

Front

What is the net force acting on an object?

Back

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

Front

If no net force acts on an object, what will happen?

Back

The object will maintain its current state of motion.

Front

What is an example of inertia in everyday life?

Back

A passenger lurching forward in a car when it suddenly stops.

Front

How does friction affect motion?

Back

Friction opposes the motion of an object, causing it to slow down or stop.

Front

What is the Law of Inertia?

Back

Another name for Newton's First Law, emphasizing that objects resist changes in their motion.