magnet and electromagnet

How are electromagnets different from magnets?

• magnets can be turned on/off
• you can turn an electromagnet on/off
• magnets are more powerful
• magnets have a North and South pole

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Like poles on a magnet

• attract
• repel

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What is the metal center of an electromagnet called?

• The current
• the wire
• the coil
• the core

Unlike poles on a magnet

• repel
• attract

What is this?

• magnet
• electromagnet
• series circuit
• parallel circuit

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The Earth produces its own magnetic field.  True or false?

• False
• True

What is magnetism?

• invisible objects coming together
• a force that either attracts or repels certain materials
• full of electricity
• metals

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How do you make an electromagnet stronger?

• Add a motor and/or lightbulbs
• Add more light bulbs and/or wire coils
• add more wire coils and/or a switch
• add more wire coils and/or batteries

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NGSS.MS-PS2-3

Surrounding every magnet is a __________  __________.

• magnetic field
• electrical current
• another magnet
• an enemy

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In order for an electromagnet to be formed, an __________ current must pass through a coil of __________ wrapped around an ________ core.

• wire, iron, electric
• electric, wire, iron
• iron, electric, wire
• excited, hair, apple

Tags

NGSS.MS-PS2-3