The process of getting electrons to move through a wire by changing the magnetic field.
What is the definition of induction?
100
it converts mechanical energy to electrical energy.
What does a generator do?
100
water
Hydroelectricity involves what element
100
it increases or decreases the voltage.
What does a transformer do?
200
what are two causes earths magnetic field?
1. What is It has an iron and nickel core.
2. it spins fast.
200
Michael Faraday
What is Who discovered electric current from magnets?
200
it converts electrical energy to mechanical energy.
What does a electric motor do?
200
A group of solar cells used to capture sunlight.
What is the definition of solar panels?
200
it reversed the current.
What does a commutate do?
300
What are the 3 magnetic metals
1. iron
2. nickel
3. cobalt
300
This is "an electric current flowing through a coil of wire wrapped around a solid iron core."
What is the definition of electromagnetism?
300
power source, conductor, permanent magnet, and rotating wire(armature).
What are the four main parts of and electric motor?
300
1000 watts
how many watts are in a kilowatt?
300
Michael Faraday
Who discovered electric current from magnets?
400
1.iron core
2.coil
3. electric current
What is Describe the main parts of and electromagnet?
400
(1) rotating wire, coil, or armature.
(2)An alternating electric power source.
(3)brushes that transfer the electric current to the armature.
(4)Permanent magnet that use the electric current to cause the wire to turn.
list the 4 parts of an AC motor.
400
wind spins the turbines witch makes a electric current. Then the generator makes it electrical energy.
explain how a windmill works.
400
hot water or steam comes up from the earth and the heat makes energy.
how does Geothermal energy work?
500
Describe what happens in these situations:
a. North Pole to North Pole
b. South Pole to South Pole
c. North Pole to South Pole
d South Pole to North pole
a. repel
b. repel
c. attract
d. attract
500
doorbells, cars, T.V.'s, radios, refrigerators, and airplanes
What is Identify five devices that use electromagnets?
500
1. power plant
2. turbine
3. generator
4.transformer
5.power lines
6.transformer
7. meter
8. your house
name the steps of the electric power grid
500
(Wattage times hours used per day) divided by 1000=
Daily kilowatt hours