Magnetism and Static Electricity

What is a magnet?

• A piece of rock or metal that can attract other metals

• A red and blue bar which interacts with other red and blue bars

• A type of force which can attract or repel

• A type of force involving an electrical charge

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The north end of a magnet will ​ (a)   the south end of another magnet.

• attract
• repel

The north end of a magnet will (a)   the north end of another magnet.

• repel
• attract

Opposite poles on magnets ​ (a)   while like poles on magnets ​ (b)   .

• attract
• repel

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Alicia rubs a balloon on her sweater, and then holds the balloon to her hair. What will most likely happen next?

• Her hair will experience a balanced force.

• Her hair will be attracted to the balloon.

• Her hair will be repelled by the balloon.

• Her hair will remain still.

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Martin slowly moves the north end of a magnet towards the north end of another magnet tied to a string. What will MOST LIKELY happen next?

• The magnet on the string will gain an electrical charge.

• The magnet on the string will move straight upwards.

• The magnet on the string will move towards the one Martin is holding.

• The magnet on the string will move away from the one Martin is holding.

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Magnetism and static electricity are both types of​ (a)   which can ​ (b)   and ​ (c)   .

• forces
• energies
• attract
• unbalance
• repel
• balance

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Lee is holding a magnet next to a bowl, as shown. What can you infer about the light brown and dark grey specks in the bowl?

• Neither the light brown nor the dark grey specks are metal.

• Both the light brown and dark grey specks are metal.

• The light brown specks are metal. The dark grey specks are not metal.

• The light brown specks are not metal. The dark grey specks are metal.

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Michael and Nicole are arguing about the best way to ensure their magnet picks up as many metal coins as possible. What could they do to make sure they pick up as many metal coins as they can?

• Spread the coins out more evenly.

• Use a larger magnet.

• Hold the magnet close to the coins.

• Make sure they are both holding on to the magnet.

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Four students each used a magnet to see how many paperclips they could pick up in five seconds. Which student MOST LIKELY held the magnet the closest to the paperclips?

• Kendra

• Tommy

• Darius

• Yumi

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