Simple Electric Motor and Generator

Which of the following is the CORRECT description of the operation of an electric motor?

• The electric motor uses electricity.

• The operation is based on the principle of electromagnetism.

• The motor converts electric energy into mechanical energy.

• All of the above.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which of the following principles explains how an electric motor works?

• Magnetic force

• Magnetism

• Electrolysis

• Electromagnetism

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What do we call a device that converts electricity into mechanical movement?

• electric charge

• electric motor

• electric current

• electric plasma

What do you call a device that converts mechanical movement into electricity?

• electric field

• electric motor

• electric generator

• electric plasma

What would happen to the coiled wire in an electric motor model if there are repulsion and attraction of the magnetic poles?

• The coil fluctuates and converts electrical energy into chemical energy.

• The coil stops and changes mechanical energy into electrical energy.

• The coil rotates and changes electrical energy into mechanical energy.

• The coil remains unstable.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

NGSS.HS-PS3-5

What do you call a device that produces an electric current when a coil of wire is wrapped around an iron core and rotated near a magnet?

• magnet

• car

• generator

• motor

What are the three basic parts of an electric motor?

• commutator, stator, and rotor

• armature, brushes, and battery

• commutator, armature, and brushes

• battery, armature, and DC power supply

What do you call an energy converting system that transforms electrical energy into mechanical movement?

• Electric motor

• Electric field

• Electric generator

• Electric plasma

What will happen to the coiled wire in a model of an electric motor if the magnetic poles are repulsed and attracted?

• The coil remains stable.

• The coil fluctuates and converts electrical energy into chemical energy.

• The coil stops and changes mechanical energy into electrical energy.

• The coil rotates and changes electrical energy into mechanical energy.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

NGSS.HS-PS3-5

Which two forces are required to operate with generators and electric motors?

• electric and magnetic

• electric and thermal

• magnetic and radiant

• magnetic and thermal

Tags

NGSS.MS-PS2-3