Newton's Laws 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 is Newton's Second Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. (F = ma)

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

What is net force?

Back

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

Front

What is friction?

Back

A force that opposes the motion of an object.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

What is the unit of force?

Back

Newton (N) is the unit of force in the International System of Units (SI).

Front

What happens to the net force when two equal forces act in opposite directions?

Back

The net force is zero, resulting in no change in motion.

Front

How does mass affect acceleration?

Back

Greater mass results in less acceleration for the same amount of force applied.

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on an object's mass (Weight = mass × gravity).