Forces and Gravity

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 speed

• a force

• a surface

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is friction?

• a force that slows an object down

• a force that speeds an object up

• a force that makes an object start moving

• a force that can move very 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

Imagine you kick four balls with the same amount of force. Which one will go the furthest?

• 3-pound

• 5-pound

• 15-pound

• 25-pound

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

Which of the following requires force to move?

• a book

• a rock

• an elephant

• all of the above

Tags

NGSS.3-PS2-1

Which of the following people is 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