Motion Test- Chapter 9

Front

What is Newton's 1st Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an unbalanced force.

Front

What is Newton's 2nd Law of Motion?

Back

The acceleration of an object depends on the mass of the object and the amount of force applied. (F = m × a)

Front

What is Newton's 3rd Law of Motion?

Back

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

Front

What is the formula to calculate speed?

Back

S = d/t, where S is speed, d is distance, and t is time.

Front

What is an unbalanced force?

Back

A force that causes a change in the motion of an object.

Front

What is a balanced force?

Back

Forces that are equal in size but opposite in direction, resulting in no change in motion.

Front

What is gravitational force?

Back

The force of attraction between two objects due to their mass.

Front

What is frictional force?

Back

The force that opposes the motion of an object when it comes in contact with another object.

Front

If a book weighs 4 N and is held at rest, what is the net force on the book?

Back

0 N.

Front

What happens to an object in motion if no net force acts on it?

Back

It continues to move at a constant velocity.