Magnetism and Electromagnetism Flashcard

Front

What do magnetic field lines around a bar magnet do?

Back

They spread out from one pole and curve around to the other.

Tags

NGSS.MS-PS2-5

Front

How can you increase the strength of an electromagnet’s field?

Back

By winding the coils more tightly.

Tags

NGSS.MS-PS2-3

Front

What causes a maglev train to float above its rails?

Back

Magnetism.

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Front

What is an electromagnet?

Back

A strong magnet that can be turned on and off.

Front

What type of current is produced by a battery?

Back

Direct current.

Front

What is the definition of magnetism?

Back

A force that can attract or repel certain materials, typically metals like iron.

Tags

NGSS.MS-PS2-3

Front

What is an example of an application of electromagnetism?

Back

Electric motors, generators, and transformers.

Front

What happens to magnetic field lines when two magnets are brought close together?

Back

They interact, either attracting or repelling each other depending on their orientation.

Tags

NGSS.MS-PS2-3

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Front

What is the difference between direct current (DC) and alternating current (AC)?

Back

DC flows in one direction, while AC changes direction periodically.

Front

What is a solenoid?

Back

A coil of wire that produces a magnetic field when an electric current passes through it.

Tags

NGSS.MS-PS2-3