Electromagnets and Electric Motors

Electromagnets and Electric Motors

Assessment

Flashcard

Science

8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. It consists of a coil of wire, often wrapped around a core of ferromagnetic material.

2.

FLASHCARD QUESTION

Front

What device is used to measure the strength of an electromagnet?

Back

Galvanometer.

3.

FLASHCARD QUESTION

Front

What is the function of the stator in an electric motor?

Back

The stator is the stationary part of the motor that creates a magnetic field.

4.

FLASHCARD QUESTION

Front

What type of current flows in a direct current (DC) motor?

Back

Electrical current that flows only in one direction.

5.

FLASHCARD QUESTION

Front

What is the role of the commutator in an electric motor?

Back

The commutator reverses the direction of the current in the motor.

6.

FLASHCARD QUESTION

Front

What energy conversion occurs in an electric motor?

Back

An electric motor converts electrical energy into mechanical energy.

7.

FLASHCARD QUESTION

Front

What is the rotor in an electric motor?

Back

The rotor is the rotating part of the motor that turns to produce mechanical motion.

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