3U1 Motion and Stability Review

When I throw a ball up into the air, it falls because of an invisible force called

• magnetism

• thermal energy

• solar energy

• gravity

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What happens when a paper clip is close to a magnet?

• the paper clip explodes

• the paper clip melts

• the paper clip is attracted to the magnet

• the paper clip repels the magnet

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A ball rolls down the hill because of

• ice cream

• gravity

• heat from the sun

• dragons

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This is required to move an object.

• motion

• friction

• gravity

• force

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When something changes position, it is in------.

• motion

• friction

• gravity

• force

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A force is a or a which causes a change in motion.

• a. push, taste

• b. push, pull

• c. pull, run

• D. None of the above

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A force has two things_____ and _____

• Magnets and Paper

• Strength and Direction

• Pushes and Closes

• hands and feet

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The greater the force, the less the change in the position of the object.

• True

• False

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The dog is pulling on the leash. The boy is also pulling on the leash. Neither the dog nor the boy move.

• a. balanced forces

• b. unbalanced forces

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A boy kicks a soccer ball that was rolling towards him. The ball rolls away from him.

• balanced forces

• unbalanced forces

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