Newton's First Law

Front

What is inertia?

Back

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

Front

Complete the excerpt of Newton's First Law of Motion: "...and an object at rest will ________ until acted on by an unbalanced force."

Back

...stay at rest...

Front

Because of inertia, a resting object will remain at ________.

Back

rest

Front

If an object is stationary (not moving), the forces acting upon it are _____________.

Back

balanced

Front

What is the net force when all forces acting on an object are equal and opposite?

Back

0N

Front

What does Newton's First Law state about objects in motion?

Back

An object in motion will remain in motion at a constant speed and in a straight line unless acted upon by an unbalanced force.

Front

What is an unbalanced force?

Back

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

Front

Give an example of inertia in everyday life.

Back

A passenger lurches forward in a car when it suddenly stops due to inertia.

Front

What happens to a ball when it is rolled on a flat surface?

Back

It will eventually stop due to friction, which is an unbalanced force acting on it.

Front

What is the relationship between mass and inertia?

Back

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