electromagnet

Sophia made an electromagnet but it was very weak. How can she make it stronger?

• take away the battery

• wrap the wire loosely

• use less copper wire

• coiled more copper wire

Tags

NGSS.MS-PS2-3

What component becomes a temporary magnet when electricity is flowing through the circuit?

• iron nail

• copper wire

• battery

• switch

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which component provides the energy or the power source to run the electromagnet?

• Iron nail

• wire

• Switch

• Battery

What is an electromagnet?

• a permanent magnet with a north and south pole

• a temporary magnet made from current carrying wire around a magnetic metal core

Tags

NGSS.MS-PS2-3

Which of the following is NOT part of an electromagnet?

• Toothpick

• battery

• Iron nail

• wire

How are electromagnets different from magnets?

• magnets have a North and South pole

• you can turn an electromagnet on/off

• magnets are more powerful

Tags

NGSS.MS-PS2-3

What would increase the strength of an electromagnet?

• Changing the direction of the current

• Increased the amount of electricity that flows through the wire.

• Inserting a wooden core inside the coil

• Decreasing the number of coils of wire

Tags

NGSS.MS-PS2-3

Surrounding every magnet is a __________ __________.

• another magnet

• electrical current

• magnetic field

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is a permanent magnet?

• Can be turned off

• Can not be turned off

• Can turned on and off

Tags

NGSS.MS-PS2-3

Why do you think the compass needle is moving when is near to electromagnet?

• Because of the magnetic field generated in the wire.

• Because of the electricity generated in the compass.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5