Force and Motion

An object needs _____________ to change direction or position.

• friction

• inertia

• gravity

• a force

Tags

NGSS.MS-PS2-2

Gravity pulls objects towards the ____________ of Earth, but it seems as if they are being pulled down.

• center

• top

• ocean

What force could help a ball roll down a hill?

• gravity

• friction

• inertia

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

To lift an object you must overcome what force?

• inertia

• friction

• gravity

• pull

Tags

NGSS.HS-PS2-4

Friction_____________________ the movement of object.

• slows or opposes

• speeds up

• turns

Tags

NGSS.MS-PS2-2

Friction is helpful when a car needs to _____________ or ______________________.

• stop or slow down

• speed up

• slide around

Tags

NGSS.MS-PS2-2

A large transfer truck will need more force to accelerate and decelerate because of _____________________

• the 2nd law of motion

• it has very little mass

• it has very little friction

• it will not have much momentum

Tags

NGSS.MS-PS2-2

The second law of motion states

• mass and acceleration are related

• mass has nothing to do with acceleration

• acceleration happens without a force

Tags

NGSS.MS-PS2-2

A bowling ball and a ping pong ball are pushed with the same force. Which will travel farther?

• the ping pong ball because it has way more mass

• the bowling ball because it has less mass

• the ping pong ball because it has less mass.

Tags

NGSS.MS-PS2-2

A bowling ball and a ping pong ball roll down a ramp. Which will be more difficult to slow down?

• the bowling ball because the ramp was higher.

• the bowling ball because it has more momentum,

• the ping pong ball because it has more friction.

• the ping pong ball because it received more force form the ramp.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1