Chapter 12 Final Assessment

A (a)   is a push or a pull on an object.

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NGSS.MS-PS2-1

The attraction between our (a)   and our oceans causes water in the oceans to bulge out from Earth.

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NGSS.MS-ESS1-1

Some forces act on objects at a (a)   , even without touching them.

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NGSS.MS-PS2-5

NGSS.MS-PS2-3

____________________ is an invisible force that pulls everything towards the center of the Earth.

• Electricity

• Magnetism

• Friction

• Gravity

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NGSS.5-PS2-1

____________________ is the amount of matter within a given object.

• Volume

• Mass

• Density

• Weight

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NGSS.MS-PS1-5

When an object changes its position or moves it is called (a)   .

The (a)   attraction between a star and a very massive planet actually makes the star wobble slightly in its path.

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NGSS.MS-PS2-4

NGSS.MS-ESS1-2

Why aren’t we pulled off of the Earth and into the sun?

• Because the Earth's atmosphere blocks the sun's pull.

• Because the sun's gravity is weaker than Earth's gravity.

• Because we are farther away from the Sun

• Because the Earth's rotation pushes us away from the sun.

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NGSS.MS-PS2-4

NGSS.MS-ESS1-2

____________________, in simple terms, is how quickly an object’s speed or direction changes.

• Force

• Mass

• Acceleration

• Distance

The force of gravity on a person at sea level is slightly (a)   than the force of gravity on the same person on a high mountain.