How is a permanent

(reg.) magnet different from

an electromagnet

??

Describe how an electromagnet shows how magnetism & electricity relate to each other. (How does it work?)

Identify common devices that use an electromagnet

Click on the link below and complete the 5 charts on your worksheet and

answer the questions a – f. • http://www.fossweb.com/modules3-6/M

agnetismandElectricity/activities/electromagnet.html

Click on the link below and complete the charts on Exploration Activity #3 and answer the questions on your

worksheet.

• http://www.harcourtschool.com/activity/electromagnets/

Finished Early?

• Click Arrow button to continue.

ippex online

• Click “Run Now”. View both tabs at top: Magnet & Electromagnet

Magnets and Electromagnets - Magnetism, Magnetic Field, Electromagnets – PhET

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Main Idea

Detail Detail Detail

Identifying Main Ideas

• As you read the section “Solenoids,” write three supporting details that further explain the main idea. (pg. 82)

A solenoid is useful because its magnetic field can be changed.

Its magnetic field can be turned on and off.

Its magnetic field can have its direction changed.

Its magnetic field can have its strength changed.

- What Is Electromagnetism?Solenoids• The magnetic field produced by a current has

three distinct characteristics. The field can be turned on or off, have its direction reversed, or have its strength changed.

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Describe at least 3 ways to increase the strength of an

electromagnetic field.

1. Larger iron core.

2. More coils

3. More batteries

4. Thick copper wire

5. Tight coils

Which electromagnet

would be stronger?Draw 2 electromagnets

that only have 1 variable changed.