Unit 8.3 Quiz 2

Which of the following pure substances will NOT interact with a magnet?

• iron

• nickel

• copper

• cobalt

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Which of the following will become a magnet when connected to a battery?

• string

• plastic zip tie

• copper coil

• compass

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Each of the three magnets shown has been dipped into the substance below it. Which of the substances could be coffee?

• Substances A and B only

• Substance A only

• Substance B only

• Substance C only

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Some cabinets use a magnet and an iron plate as shown in this picture. How is this useful? The magnet and the iron plate:

• make it easier to see inside the cabinet.

• can hold the door of the cabinet closed.

• help small children reach the cabinet.

• allow more things to be put in the cabinet.

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A compass needle is an example of:

• a piece of iron.

• a permanent magnet.

• an electromagnet.

• a ferromagnet.

What will happen to the two magnets below if they are released?

• The magnets will move further apart.

• The magnets will both move to the left.

• The magnets will both move to the right.

• The magnets will move toward each other.

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Bar magnets have two ends called:

• forces.

• fields.

• poles.

• materials.

The space around a magnet that attracts a magnetic substance is called the:

• permanent magnet.

• magnetic field.

• south pole.

• north pole.

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