Forces & Motion Unit Review

What does acceleration refer to?

• Increasing speed

• Decreasing speed

• Changing direction

• All of the above

Friction is a force that ______ objects down.

• slows

• speeds

• lifts

• warms

Tags

NGSS.3-PS2-1

In free fall, gravity is the force that causes objects to ______.

• accelerate

• float

• stop

• shrink

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

Isaac Newton proposed how many basic laws that describe how all objects move?

• 1

• 2

• 3

• 4

Speed = ______ ÷ Time

• Distance

• Mass

• Volume

• Area

Acceleration = (Final Speed - Initial Speed) ÷ ______

• Time

• Distance

• Mass

• Force

A graph with a straight line shows constant speed. The steeper the line, the ______ the speed.

• faster

• slower

• shorter

• lower

Tags

NGSS.MS-PS3-1

Balanced forces do not change motion.

• True

• False

Tags

NGSS.HS-PS2-1

Unbalanced forces acting on an object cause a change in ______.

• motion

• color

• temperature

• shape

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Friction is the force between two objects when they ______ against each other.

• rub

• float

• melt

• freeze