Newton's First Law 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 at a constant velocity unless acted upon by a net external force.

Front

What is inertia?

Back

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

Front

What is friction?

Back

A force that opposes the motion of an object when it rubs against another object.

Front

What is a force?

Back

A push, pull, or twist that can change the motion of an object.

Front

True or False: Friction can make a moving object slow down or stop.

Back

True

Front

True or False: The amount of matter that makes up an object is its weight.

Back

False; it is its mass.

Front

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

Back

It continues to move at a constant velocity.

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 example of friction in everyday life?

Back

When you slide a book across a table, friction slows it down.

Front

What is the net force?

Back

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