Mass, Weight, Forces

What is the name of the scientist who dropped metal balls of different weights from the top of the tower and measured how fast they traveled?

• Newton

• Galileo

• Archimedes

• Copernicus

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NGSS.MS-PS2-4

"Heavier objects need more force to move them." Which law of motion is this?

• 3rd

• 2nd

• 4th

• 1st

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NGSS.MS-PS2-2

What is the amount of matter or particles in an object?

• Mass

• Weight

• Force

• Newton

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NGSS.MS-PS1-1

Which planet has a force of gravity per kilogram of 9.8?

• Jupiter

• Mars

• Venus

• Earth

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NGSS.MS-PS2-4

When two surfaces touch each other, they slow each other down. What is this called?

• gravity

• normal force

• air resistance

• friction

Which type of energy is also called movement energy?

• heat

• chemical energy

• potential energy

• kinetic energy

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NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

As objects move through the air they are held back. The amount of air resistance depends on the ______________.

• surface area

• drag

• wind

• parachute

Gravity is a force measured in __________.

• kilogram

• tonne

• Newton

• joule

Objects float if the force they push down with is the same as the water pushing back. What do you call the force that is pushing back from the water?

• air resistance

• upthrust

• gravity

• push

What is the first law of motion?

• Objects continue doing what they are doing unless other forces speed them up or slow them down.

• Whenever an object pushes another object it gets pushed back in the opposite direction equally hard.

• Heavier objects need more force to move them.

• F = ma