Forces and Motion Flashcard Review

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

How do you calculate acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time.

Front

What is net force?

Back

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

Front

If a net force of 3 N is applied to an object, what is the direction of the force?

Back

The direction of the net force is to the right.

Front

What happens to a boat when a person steps off it?

Back

The boat moves in the opposite direction due to Newton's THIRD Law.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What is the formula for calculating force?

Back

Force = Mass x Acceleration (F = ma).

Front

If a skier's speed increases from 0.5 m/s to 1.5 m/s in 10 seconds, what is his acceleration?

Back

0.1 m/s².