Generators and Motors | Physics in Motion

Quiz
•
Physics
•
8th Grade
•
Easy
Wayground Content
Used 7+ times
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18 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
rotor
A stationary component of an electromagnetic system in an electric motor.
A moving component of an electromagnetic system in an electric motor or generator.
A type of battery used in electric motors.
A cooling system for electric generators.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Alternating current
A type of current that flows in one direction only.
A constantly reversing current.
A current that is always at rest.
A current that can only be generated by batteries.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Commutator
A part of a simple electric motor that consists of two semicircular pieces of metal. It conducts the current from the brushes to the armature.
A device that converts electrical energy into mechanical energy.
A component that stores electrical energy for later use.
A type of switch used to control the flow of electricity.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Motors
Devices that convert electrical energy into mechanical energy.
Devices that convert mechanical energy into electrical energy.
Devices that store electrical energy for later use.
Devices that regulate electrical energy flow.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Step-down transformers
The primary coil has more loops than the secondary coil.
The primary coil has fewer loops than the secondary coil.
The voltage is increased to supply power to homes.
They are used to convert AC to DC.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Commutation
The process of converting alternating current into direct current.
The electromechanical process by which direct current is turned into alternating current.
A method for increasing voltage in electrical circuits.
The technique used to measure electrical resistance.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Transformer
A device that increases or decreases voltage.
A device that stores electrical energy.
A device that converts AC to DC.
A device that measures electrical resistance.
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