Force Review

What is a noncontact force that pulls objects toward earth

• Gravity

• Friction

• Motion

• Magnetism

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Which force is a force between surfaces?

• Gravity

• Friction

• Motion

• Magnetism

The ability to attract certain metals is _____

• Gravity

• Friction

• Motion

• Magnetism

On which surface would a toy car travel the furthest when pushed?

• ice
• carpet
• snow
• sand

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Without friction, an object in motion would never stop.

• true

• false

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Which items are attracted to a magnet?

• rubber eraser, wooden ruler

• iron and nickel

• glass and aluminum

• plastic and paper

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When the same pole from two magnets are placed near one another, they will __________.

• attract

• stick to each other

• repel

• lose gravity

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Rough surfaces have _________ compared to smoother surfaces.

• greater friction

• less friction

• the same level of friction

Which force makes leaves fall to the ground?

• Friction

• Motion

• Push

• Gravity

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Two toy train cars use magnets to push and pull the train along the track. When placed together, two train cars push away from each other. Why did this occur?

• The magnets are pushing away because one of the cars is not magnetic.

• The magnets have poles that repel when two like poles face each other.

• The magnets are different strengths and the stronger magnet attracted the weaker magnet.

• The magnets do not have enough strength to pull the cars together.

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