Unit 1 Quiz 5-Electromagnetism Quiz

What is an electromagnet made of?

• A plastic core, wire, and a power source

• A metal/iron core, wire, and a power source

• A wooden core, wire, and a power source

• A rubber core, wire, and a power source

What factor affects the strength of an electromagnet?

• The color of the wire

• The length of the nail

• The number of turns of wire around the nail

• The type of battery used

Tags

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What happens to the strength of an electromagnet when more loops of wire are added?

• It becomes weaker

• It stays the same

• It becomes stronger

• It stops working

What observation was made with fewer turns of wire?

• Electromagnet was stronger / picked up more paper clips

• Electromagnet was weaker / picked up fewer paper clips

• Electromagnet picked up the same number of paper clips

• Electromagnet did not work

What factor affected the electromagnet's strength according to the conclusion?

• The length of the wire

• The number of turns of wire

• The type of battery used

• The color of the wire

Tags

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What evidence was provided to show the effect of more turns of wire on the electromagnet?

• It changed color

• It picked up more paper clips

• It became heavier

• It made a sound

What are the two factors mentioned that affect the strength of a magnet's force?

• Temperature and humidity

• Number of magnets and strength of magnets

• Size and shape of magnets

• Color and texture of magnets

Tags

NGSS.MS-PS2-3

How can magnets be made stronger according to the background information?

• By cooling them

• By using stacked or stronger magnets

• By painting them

• By reducing their size

What happens to the magnetic force when fewer magnets are used?

• The magnetic force is stronger.

• The magnetic force is weaker.

• The magnetic force remains the same.

• The magnetic force disappears completely.

Tags

NGSS.MS-PS2-3

What is the trend observed with more magnets according to the document?

• More magnets result in a weaker force.

• More magnets result in a stronger force.

• More magnets have no effect on force.

• More magnets reduce the speed of the motor.