Force, Gravity, Friction, Work

When something comes toward you it is a ______.

• friction

• push

• pull

• gravity

When something goes away from you, this is a _____.

• friction

• push

• pull

• gravity

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

A _______ is any push or pull

• gravity

• friction

• force

• lubricant

Tags

NGSS.HS-PS2-1

___________ is an invisible force that pulls objects.

• force

• gravity

• push

• pull

Tags

NGSS.MS-PS2-4

Scientists say that _____ has been done when something has been moved.

• force

• gravity

• lubricant

• work

Tags

NGSS.MS-PS3-5

A ball rolls faster on the gym floor than on the grass outside because the floor has less ______.

• force

• gravity

• friction

• work

Oil, grease, lotion, and hand sanitizer are all examples of ________.

• gravity

• friction

• lubricants

• work

Lubricants reduce the amount of _______ between two objects.

• force

• gravity

• friction

• work

If you push against a wall and it doesn't move, you have not worked.

• true

• false

Which object would be the best lubricant?

• sand

• pebbles

• shampoo

• dirt