Force & Motion

A force can ____.

• make an object move

• make a moving object stop moving

• slow an object down

• all of the above

Tags

NGSS.3-PS2-1

True or False: An object resting on the ground can move without a force.

• true

• false

When you push or pull something, you are creating _________.

• a weight

• a force

• a speed

• a surface

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

What is friction?

• a force that slows an object down

• a force that makes an object start moving

• a force that speeds an object up

• a force that can move heavy objects

If you want a surface to have less friction, make it _________.

• wider

• rougher

• smoother

• thinner

Which of the following would it take the most force to move?

• a 3-pound ball

• a 5-pound ball

• a 15-pound ball

• a 25-pound ball

Tags

NGSS.MS-PS2-2

Which of the following would be the easiest to move?

• a 5-pound ball on grass

• a 5-pound ball on ice

• a 10-pound ball on grass

• a 10-pound ball on ice

Tags

NGSS.MS-PS2-2

Which of the following requires force to move?

• a book

• a rock

• an elephant

• all of the above

Which of the following people is the least affected by friction?

• a person trying to slide a box across grass

• a person trying to slide a box across sand

• a person trying to slide a box across ice

• a person trying to slide a box across concrete

How can the lever be balanced?

• add weight to the right side

• move the heavier weight back

• move the fulcrum to the right

Tags

NGSS.MS-PS2-1