Forces & Experimental Design

__________ is a push or a pull.

• A force

• A charge

• An electromagnet

• Energy

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On two magnets, a north pole and a north pole are considered -

• "Like poles"

• "Opposite poles"

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On two magnets, a north pole and a south pole are considered -

• "Like poles"

• "Opposite poles"

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When two magnets push apart, they are _______ each other.

• repelling

• attracting

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When two magnets pull towards each other, they are _______ each other.

• repelling

• attracting

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Earth's ___________ pulls everything toward the center of Earth.

• gravity

• magnetic field

• friction

• repulsion

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A compass works because of -

• Earth's magnetic field.

• Earth's gravity.

• friction.

• meteorites.

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__________ makes moving things slow down or stop.

• Fricton

• Gravity

• Magnetism

• Attraction

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Earth functions as a giant magnet because -

• Earth's core is made of iron.

• Earth is full of gravity.

• Earth has friction.

• Earth is a sphere.

To find which direction is North, you should use -

• a measuring tape

• a spring scale

• a compass

• a balance