TEST: Force & 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 with the same speed and in the same direction unless acted upon by an unbalanced 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 friction?

Back

A force that opposes the motion of an object, acting parallel to the surfaces in contact.

Front

How does friction affect motion?

Back

More friction decreases speed, while less friction increases speed.

Front

What is speed?

Back

The distance traveled per unit of time, typically measured in miles per hour (mph) or meters per second (m/s).

Front

How do you calculate speed?

Back

Speed = Distance / Time.

Front

What is the relationship between force and motion?

Back

Force is required to change the motion of an object; it can cause an object to start moving, stop moving, or change direction.

Front

What happens when two like poles of magnets are brought together?

Back

They will repel each other.

Front

What happens when two unlike poles of magnets are brought together?

Back

They will attract each other.