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Electric Motor Basics Quiz

Authored by Gareth Hart

Physics

12th Grade

Used 2+ times

Electric Motor Basics Quiz
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of a switch in an electric circuit?

To stop the flow of electricity

To complete the circuit path

To decrease the resistance

To increase the voltage

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when a permanent magnet is brought near another magnet with opposite poles?

They attract each other

They cancel each other out

They create a new pole

They repel each other

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is an electromagnet and how is it different from a permanent magnet?

It is made of different materials than a permanent magnet

It is weaker than a permanent magnet

It can only attract, while a permanent magnet can attract and repel

It can be turned on or off, while a permanent magnet is always on

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the polarity of an electromagnet when the direction of the electric current is reversed?

The polarity switches

The electromagnet becomes weaker

The electromagnet turns off

The polarity remains the same

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of a split ring commutator in an electric motor?

To increase the speed of the motor

To reverse the direction of the motor

To maintain continuous contact with the brushes

To switch the polarity of the electromagnet every half turn

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the part of the motor that does not move called?

Rotor

Axle

Stator

Commutator

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the spinning force on the armature in an electric motor called?

Resistance

Torque

Current

Voltage

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