Magnetism Check for Understanding

Which three metals are attracted by modern magnets?

• Iron, Copper, Aluminum

• Iron, Nickel, Cobalt

• Iron, Nickel, Lead

• Iron, Cobalt, Zinc

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

What are the ends of a magnet called?

• Edges

• Poles

• Sides

• Tips

What is the polarity of the north pole of a magnet?

• Negative

• Neutral

• Positive

• Variable

What happens when the poles of two magnets are opposite?

• They repel each other

• They do nothing

• They attract each other

• They become demagnetized

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Where are magnetic fields strongest on a magnet?

• In the middle

• At the poles

• At the equator

• On the sides

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is required to create an electromagnet?

• A battery, an iron core, and wire

• A battery, a copper core, and plastic

• A generator, an iron core, and wire

• A generator, a copper core, and plastic

What type of induction occurs when electricity produces a magnetic field causing an object to act like a magnet?

• Magnetic induction

• Electric induction

• Electromagnet induction

• Static induction

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NGSS.HS-PS2-5

Are electromagnets permanent or temporary?

• Permanent

• Temporary

• Semi-permanent

• Naturally occurring

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What type of energy transformation occurs in an electromagnet?

• Mechanical to electrical

• Electrical to magnetic

• Thermal to electrical

• Magnetic to thermal

What is the primary use of electromagnets in industry?

• To generate electricity

• To lift heavy, metal objects

• To measure electric currents

• To create magnetic fields for navigation