Magnets and Electricity Review

Two bar magnets are on a table. How could one magnet be used to push the other magnet?

• by placing the north pole of one magnet and the south pole of the other magnet so they face each other

• by placing the north poles of both magnets so they face each other

• by placing the magnets on opposite sides of the table

• by placing a coil of wire between each magnet

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Which object would be attracted to a magnet?

• a cup, because it contains plastic

• a pencil, because it contains wood

• a penny, because it contains copper

• a paper clip, because it contains iron

The chart below shows the physical properties of two coins. How do the two coins compare?

• Both coins are attracted to a magnet.

• Coin Y is attracted to a magnet, but Coin X is not.

• Both coins are poor conductors of heat and electricity.

• Unlike Coin X, Coin Y is a poor conductor of heat and electricity.

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Which will most likely cause a magnet to stick to an object?

• the object being made of plastic

• the object being made of iron

• the object being made of wood

• the object being made of rubber

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Jose is experimenting with a bar magnet. Which object will most likely be attracted to the magnet?

• a wire made of copper

• a can made of aluminum

• a jar made of glass

• a nail made of iron

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A magnet is placed beside aluminum foil. The aluminum remains still. Why does this occur?

• Aluminum foil is attracted to the magnet.

• Aluminum foil is repelled by the magnet.

• Magnets are attracted to objects that contain iron.

• Magnets are repelled by objects that contain metal.

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Which occurs when two magnets attract each other?

• The same poles of two magnets pull the magnets toward each other.

• The opposite poles of two magnets pull the magnets toward each other.

• The same poles of two magnets push the magnets away from each other.

• The opposite poles of two magnets push the magnets away from each other.

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Which will be attracted to a magnet?

• a plastic soda bottle

• a glass milk bottle

• a cloth sock

• an iron nail

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Two magnets are placed on a table, Magnet P and Magnet R. As a student moves Magnet R closer to Magnet P, Magnet P moves away. Why does Magnet P move away?

• Magnet P and Magnet R have the same charge.

• Magnet P and Magnet R have opposite charges.

• Magnet P has a charge, but Magnet R does not have a charge.

• Magnet P does not have a charge, but Magnet R has a charge.

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A magnet is placed inside a bag with a brass tack, penny, steel safety pin, rubber band, and an iron nail. Which objects will the magnet be attracted to?

• brass tack and penny

• rubber band and iron nail

• steel safety pin and iron nail

• brass tack and steel safety pin