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 mass affect inertia?

Back

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

Front

What is friction?

Back

Friction is a force that opposes the motion of an object.

Front

In which direction does friction act?

Back

Friction acts in the opposite direction of movement.

Front

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

Back

It will remain at rest.

Front

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

Back

It will continue to move at a constant speed in a straight line.

Front

What is net force?

Back

Net force is the total force acting on an object after all the forces are combined.

Front

What does it mean if the net force is zero?

Back

It means that all the forces acting on an object are balanced.

Front

What is an example of balanced forces?

Back

Two people pulling on opposite ends of a rope with equal force.