Newtons 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 a net external force.

Front

What is a net force?

Back

The overall force acting on an object when all the individual forces are combined.

Front

What are balanced forces?

Back

Forces that are equal in size and opposite in direction, resulting in a net force of zero.

Front

What are unbalanced forces?

Back

Forces that are not equal and opposite, resulting in a net force that causes a change in motion.

Front

What is the unit of force?

Back

Newton (N)

Front

What is an example of a balanced force?

Back

Two people pushing a car in opposite directions with equal force.

Front

What is an example of an unbalanced force?

Back

A person pushing a shopping cart forward while another person pulls it backward.

Front

What happens to an object when the net force is zero?

Back

The object will not accelerate; it will either remain at rest or continue moving at a constant velocity.

Front

What is inertia?

Back

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, making it harder to change its motion.