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 does inertia refer to?

Back

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

Front

What happens to a coffee cup on a seat when a car stops suddenly?

Back

The coffee cup spills due to inertia, as it continues to move forward while the car stops.

Front

What is a force?

Back

A force is a push or pull that can cause an object to accelerate, change direction, or change shape.

Front

What force opposes the motion of objects?

Back

Friction is the force that opposes the motion of objects.

Front

How do balanced forces affect a moving object?

Back

Balanced forces do not change the motion of an object; it will continue to move at a constant speed and in the same direction.

Front

What is an example of an object at rest?

Back

A book lying on a table is an example of an object at rest.

Front

What is an example of an object in motion?

Back

A soccer ball rolling on the ground is an example of an object in motion.

Front

What happens to a resting object when no net force acts on it?

Back

It will remain at rest.

Front

What happens to a moving object when no net force acts on it?

Back

It will continue to move at a constant speed in the same direction.