Magnetism and Electricity

Where is the strongest attraction force of the magnet?

• at the poles
• in the middle
• above the magnet
• below the magnet

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Magnetism is generated by moving

• protons.
• electrons.
• neutrons.
• elements.

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As the distance between two magnets increases (they get farther apart), the force between them:

• Increases
• Decreases
• Stays the Same

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What characteristics do magnetic substances have?

• They can give you a "shock" when you touch them
• They can push or pull objects without touching them
• They are always black and cold to touch
• They fall faster than other objects when you drop them

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The two poles on a magnet are

• north and east
• north and west
• south and north
• south and west

Electricity can be used to create a magnet

• True
• False

You can make an electromagnet stronger by...

• increasing the current through the wire
• make the iron core bigger
• increase the number of loops around the core
• All of these

A material through which electrons do NOT flow easily is a(n) ______.

• insulator

• conductor

• fuse

• circuit breaker

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Mr. Robinson and his class are conducting an experiment. The class needs to choose a good insulator. Which of the following could be used as an insulator?

• plastic plate

• silver spoon

• copper wire

• gold necklace

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Magnetic force can cause

• push only

• pull only

• a push or a pull

• no change in motion at all

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