Newton's First Law of Motion

Front

What is a force?

Back

A force is a push, pull, or twist that can cause an object to move or change its motion.

Front

What is inertia?

Back

Inertia is the resistance to change in motion; it is the tendency of an object to remain at rest or in uniform motion unless acted upon by a force.

Front

What unit do we measure force in?

Back

Force is measured in Newtons.

Front

What is velocity?

Back

Velocity is an object’s speed in a given direction.

Front

Is a person flying out of a car when they are not wearing a seat belt after a collision an example of Newton's 3rd Law of Motion?

Back

False, it is an example of inertia.

Front

What is Newton's First Law of Motion?

Back

Newton's First Law states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by a net external force.

Front

What is the relationship between mass and inertia?

Back

The greater the mass of an object, the greater its inertia, meaning it will resist changes to its motion more than an object with less mass.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, caused by the contact between two surfaces.

Front

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

Back

If no net force acts on an object in motion, it will continue to move at a constant velocity.

Front

What is an example of a force?

Back

Examples of forces include gravity, friction, tension, and applied force.