Friction, Gravity, & Newton's Laws

What is the force that two surfaces exert on each other as they rub against each other?

• gravity

• mass

• friction

• weight

Rough surfaces have ________________ friction.

• less

• more

• the same amount

Friction is a force that acts in the _____________ direction relative to a moving object.

• same

• opposite

• parallel

• perpendicular

What is Newton’s First Law known as?  The Law of ___________________.

• Friction

• Inertia

• Mass

• Gravity

A car driving down the road runs out of gas.  Which of Newton’s Laws explains why the car continues to move without gasoline?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

Which of Newton’s Laws explains a rocket’s movement during launch?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

Which law of motion states that heavier objects need a larger force to make them

                 move?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

Tags

NGSS.MS-PS2-2

As mass increases, what happens to gravitational force?

• It increases.

• It decreases.

• It stays the same.

Tags

NGSS.MS-PS2-4

What is the force that pulls objects toward each other?

• weight

• mass

• friction

• gravity

Tags

NGSS.MS-PS2-4

What are the two factors affecting the magnitude of the force of gravity between two objects?

• distance and weight

• mass and volume       

• mass and distance

• weight and mass

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4