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

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

Front

How does friction affect a moving object?

Back

Friction slows down a moving object.

Front

What happens to a skateboarder who hits a stick while moving fast?

Back

The skateboarder will hit the stick and go flying forward while the skateboard will stop.

Front

What is the net force when two forces act in the same direction?

Back

The net force is found by adding the two forces together.

Front

What kind of objects have inertia?

Back

All objects with mass have inertia.

Front

What will happen to a ball rolling on a flat surface if no forces act on it?

Back

The ball will continue rolling indefinitely due to inertia.

Front

What is an unbalanced force?

Back

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

Front

If a car is moving at a constant speed, what can be said about the forces acting on it?

Back

The forces acting on the car are balanced.

Front

What is the effect of an unbalanced force on a stationary object?

Back

An unbalanced force will cause the stationary object to start moving.