Gravity and Friction

Imagine you decide to jump out of an airplane 🛩

Which force is going to pull you down towards earth

• Fluid Friction

• Static Friction

• Gravity

• The wind from the airplane

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NGSS.MS-PS2-4

What is gravity?

• A force

• Energy

• A push

• All of them

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Without gravity we would________. 

• Float away

• Stay in the ground

• Nothing would happen.

• I don't know

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NGSS.5-PS2-1

What keeps the planets in orbit around the sun?

• gravity

• friction

• density

• distance

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NGSS.MS-ESS1-1

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NGSS.MS-PS2-4

Which two forces are acting on the dog as it flails through the air and tumbles on the ground?

• weight and mechanical energy

• gravity and magnetisim

• friction and magnetisim

• gravity and friction

Tags

NGSS.MS-PS2-4

Makayla is conducting an experiment. She places a large block on the ramp and prepares to time the block as it moves down the ramp. When the block is released, it does not move. Makayla places a piece of wax paper between the block and the ramp. This time the block slides easily down the ramp. Which of the following best explains the job of the wax paper?

• A

• B

• C

• D

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NGSS.MS-PS2-2

The closer two objects are,

• the more friction

• the less gravitational force

• the stronger the pull of gravity

Tags

NGSS.MS-PS2-4

Which two forces are acting on the dog as it flips through the air and tumbles on the ground?

• weight and mechanical energy

• gravity and magnetisim

• friction and magnetisim

• gravity and friction

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NGSS.MS-PS2-2

NGSS.MS-PS2-4

Any object with mass has gravity.

• True

• Sometimes

• False

• Never

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A force which causes objects to fall is

• weight

• gravity

• air resistance

• absorbency

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