Forces and Motion

How does friction help us move from place to place?

• Friction does not help us.
• Friction keeps us from slipping and sliding.
• Friction only helps cats.
• Friction makes us slip and fall.

In which of the following activity is friction useful?

• sliding down a snowy hill on a sled
• ice skating
• running around a track
• roller blading

In the image, what force is acting on arrow A?

• friction
• gravity
• push
• Jedi force

Tags

NGSS.MS-PS2-2

Is gravity a push or a pull?

• push
• pull
• neither
• both

Tags

NGSS.MS-PS2-4

Why do air planes and race cars have sleek shapes?

• to reduce friction from air resistance
• to increase air resistance
• to look more appealing than cats
• so people will buy them

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

What keeps the Moon in orbit around Earth?

• Earth's rotation.
• Earth's atmosphere.
• Earth's gravity.
• Earth's shape.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which would require the most force to move?

• a toy car
• a sleeping cat
• a science book
• a chair with a friend sitting in it

Tags

NGSS.MS-PS2-2

A car traveled 120 km in 2 hours. Using this data, you can calculate its _____.

• speed.
• velocity.
• position.
• mass.

Tags

NGSS.MS-PS3-1

A _____ is a pull or a push.

• force
• friction
• gravity
• speed

Tags

NGSS.HS-PS2-1

One way that a force can cause the change in an object's motion is to...

• do nothing.
• eat ice cream.
• start the object moving.
• shine on the object.

Tags

NGSS.MS-PS2-2