The Essential Electric Motor

The Essential Electric Motor

Assessment

Interactive Video

Engineering, Physics, Science, Other

4th Grade - University

Hard

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one of the main reasons electric motors are essential in modern life?

They are used in gas-powered engines.

They help in cooling devices like computers.

They are used to generate electricity.

They are only found in industrial machines.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do electric motors convert electrical energy into mechanical energy?

Through chemical reactions.

By burning fuel.

Through the force between magnets.

By using solar panels.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a solenoid in the context of electric motors?

A device that stores electrical energy.

A coil of wire that gains magnetic properties when current flows through it.

A type of battery.

A type of fuel used in engines.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which household appliance relies on an electric motor to function?

A manual can opener.

A gas stove.

A ceiling fan.

A wooden chair.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are electric motors crucial for the operation of refrigerators?

They provide light inside the refrigerator.

They are used to heat the refrigerator.

They help in cooling the refrigerator by moving parts.

They are used to clean the refrigerator.