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WorksheetsMotors, generators, transformers
Total questions: 10
Worksheet time: 6mins
Select all that apply to an electric motor.
creates mechanical energy
uses electricity
uses mechanical energy
creates electricity
Select the main parts of an electric motor.
stator
commutator
rotor
plenum
Select all that apply to a generator.
creates mechanical energy
uses electricity
uses mechanical energy
creates electricity
A generator creates electricity by rubbing two magnets together.
true
false
According to the right hand rule, if your fingers wrap around a current carrying wire in the direction of the magnetic field, current goes in the direction of ___.
your pinky finger
your pointer finger
your left hand
your thumb
Step down transformers, like those commonly found in phone chargers, are used to do what?
increase magnetism
Speed up current
Reduce resistance
Decrease voltage
Where is there a step up transformer in the power grid?
At a house
By the generating station
At a substation
At a primary customer
Why is a transformer necessary outside of your home?
To increase current
To decrease voltage to 110
To create static electricity
To increase voltage to 600 kV
All transformers contain what main part(s)?
A large magnet
A stator
A rotor
Primary and secondary coils
If the primary coil in a coil has 1000 turns of wire and the secondary coil has 100 turns of wire, the transformer will change 110 V to ___.
220 V
11 V
1100 V
5 V
