Electromagnet

Electromagnetism

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Multiple Choice

What kind of magnet can be turned on and off?

• refridgerator magnet
• electromagnet
• magnetite
• iron

Multiple Choice

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

• Add more coils of wire to the nail.
• Use a smaller battery.
• Reverse the poles of the magnet.
• Remove all the coils and the nail.

Multiple Choice

The ability of some materials to attract certain metals is called

• Electricity
• Magnetism
• Electromagnetism
• Atoms

Multiple Choice

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

Multiple Choice

This picture best illustrates the construction of a(n)

• magnet

• electromagnet

• series circuit

• parallel circuit

Multiple Choice

A device that converts electrical energy into mechanical energy

• A. electromagnet
• B. electromagnetic induction
• C. electric motor
• D. electromagnetism

Multiple Choice

A device that increases or decreases the voltage of alternating current

• A. magnet
• B. magnetic pole
• C. transformer
• D. magnetic force

Multiple Choice

The attraction or repulsion created by spinning electric charges

• A. electric generator
• B. magnetic force
• C. solenoid
• D. electromagnet

Multiple Choice

As electrons move, they make

• A. electromagnetism.
• B. auroras.
• C. ferromagnetism.
• D. magnetic fields.

Thank you

Mukund Vetrivel