Magnets and Electromagnetism Review

Magnets and Electromagnetism Review

Assessment

Flashcard

Physics

9th Grade

Practice Problem

Easy

Created by

Sherri Christensen

Used 1+ times

FREE Resource

Student preview

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20 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What effect does coiling a wire have on its magnetic field?

Back

Strengthens the magnetic field

2.

FLASHCARD QUESTION

Front

What is true about electromagnets?

Back

Their polarities can be reversed.

3.

FLASHCARD QUESTION

Front

What happens when you reverse the polarity of an electromagnet?

Back

It changes direction.

4.

FLASHCARD QUESTION

Front

What do the lines around this magnet represent?

Media Image

Back

Magnetic Field

5.

FLASHCARD QUESTION

Front

What happens to the magnetic field of an electromagnet when the current is increased?

Back

It increases

Answer explanation

When the current in an electromagnet is increased, the magnetic field strength also increases. This is due to the direct relationship between current and magnetic field intensity, making 'It increases' the correct answer.

6.

FLASHCARD QUESTION

Front

The ability of some materials to attract certain metals is called

Media Image

Back

Magnetism

7.

FLASHCARD QUESTION

Front

How can the strength of an electromagnet be increased?

Back

By increasing the number of coils.

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