Forces and Motion Review

If you wanted to increase friction between objects, which of those should you not use?

• rubber

• sandpaper

• oil

• rough stones

Which force will slow down the bowling ball as it rolls along the bowling alley?

• wind

• friction

• force from the bowling ball

• force from the bowler

Tags

NGSS.MS-PS2-2

Tanvi and Sophia are on Flag Duty every week. Which simple machine makes it easier for them to lift the flag on the flagpole outside school?

• Lever

• Screw

• Pulley

• Wheel & Axle

Tags

NGSS.MS-PS2-1

Mrs. Balkcom likes to take her daugther to the playground. What simple machine is a slide an example of?

• Inclined Plane

• Pulley

• Screw

• Wheel & Axle

Tags

NGSS.K-2-ETS1-2

Look at the picture. Which simple machine is used in a seesaw?

• Lever

• Pulley

• Screw

• Inclined Plane

Tags

NGSS.MS-PS2-1

Aaron loves to build stuff in his workshop. Which simple machine is best described as an inclined plain, wrapped around a post?

• Lever

• Pulley

• Screw

• Inclined Plane

Tags

NGSS.MS-PS2-1

Imagine you wanted to move that heavy rock in the picture. Which simple machine could help you lift this heavy rock?

• screw

• lever

• inclined plane

• wheel and axle

Tags

NGSS.MS-PS2-1

Imagine you wanted to move a heavy box across the room. Why would you want to reduce the friction that acts on the box?

• To make the box move slower

• To make the box brighter

• To make the box heavier

• To make the box easier to move

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

How do balanced forces affect an object?

• It moves in a curved path.

• It moves in a straight line at a constant speed.

• It remains still.

• It changes its shape.

An object will not move unless a force acts on it.

• True

• False

Tags

NGSS.HS-PS2-1