Question 1 (3 points)

Question

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What is magnetism?

Question 1 options:

Energy created by magnets

A force created by magnets

A contact force

An invisible force that attracts electrically charged particles

Question 2 (3 points)

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How are electromagnets different from magnets?

Question 2 options:

magnets have a North and South pole

magnets are more powerful

magnets can be turned on/off

you can turn an electromagnet on/off

Question 3 (3 points)

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Which of the following is NOT part of an electromagnet?



Question 3 options:

wire

iron

power source

toothpick

Question 4 (3 points)

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This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

Question 4 options:

Remove all the coils and the nail.

Add more coils of wire to the nail.

Reverse the poles of the magnet.

Use a smaller battery.

Question 5 (3 points)

Listen
What happens when a wire is wound into a coil around an iron core in an electromagnet?

Question 5 options:

you get electrocuted

the magnetic field becomes weaker

the wire explodes

the magnetic field becomes stronger

Answer 1

Here are the correct answers to your questions:

Question 1: What is magnetism?

• Answer: An invisible force that attracts electrically charged particles.

Question 2: How are electromagnets different from magnets?

• Answer: You can turn an electromagnet on/off.

Question 3: Which of the following is NOT part of an electromagnet?

• Answer: Toothpick.

Question 4: This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

• Answer: Add more coils of wire to the nail.

Question 5: What happens when a wire is wound into a coil around an iron core in an electromagnet?

• Answer: The magnetic field becomes stronger.