Forces and motion

Which of these is a force?

• spring scale

• . An object’s mass

• An object’s matter

• A push upward

Tags

NGSS.3-PS2-1

A student pulls four classroom

objects with the same amount of

force. On which object’s motion will

the pull have the greatest effect?

• Chair

• Pencil

• Desk

• Textbook

Tags

NGSS.MS-PS2-2

What is gravity?

• A measure of how far an object moves in a

  certain amount of time

• The amount of matter that makes up an object

• A force that pushes things away from each other

• A force that pulls things toward each other

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Friction is a force that.....

• . Pulls two surfaces apart

• Pulls objects down to the ground

• Acts when two surfaces touch each other

• Makes an object move faster

What effect does friction tend to

have on an object’s motion?

• It slows an object’s motion.

• It has no effect on an object’s motion.

• It makes an object start moving.

• It makes an object move faster.

If you increase an object’s mass, you...

• Change its direction

• Decrease its force of gravity

• Change its position

• Increase its force of gravity

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5