Magnetism Introduction

What is a bar magnet mostly made of ?

• Tin

• Iron

• Copper

• Cobalt

Ferromagnetic materials are materials that can be magnetized by a magnet. Ferromagnetic materials are...

• Iron, Cobalt, Zinc

• Iron, Cobalt, Gold

• Iron, Cobalt, Copper

• Iron, Cobalt, Nickel

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

Field lines are pointing away from the right side of a bar magnet. The magnetic pole situated on the right side is...

• A North pole

• A South pole

• A North or South pole depending of which hemisphere you are in

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

A compass always points towards...

• The Earth's magnetic North pole

• The Earth's magnetic South pole

• It depends if you are in the Northern or Southern hemisphere

• The Earth's geographic North pole

The pole represented by letter A is...

• The North magnetic pole

• The South magnetic pole

• The North geographic pole

• The South geographic pole

A compass is held stationary close to a positively charged rod. Does the compass rotate?

• A. Yes, clockwise

• B. Yes, countercockwise

• C. No, not at all

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

The SI unit of magnetic field is...

• Tesla

• Weber

• N/C

• Ampere

The Curie temperature is...

• The temperature at which Iron becomes magnetic

• The temperature at which a bar magnet looses its properties

• The temperature at which the magnetic filed stops existing

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NGSS.HS-PS2-5

Which magnetic field lines are properly represented?

• A

• B

• C

• They are all correct