What force are electricity & Magnetism both part of?
What is electromagnet force?
100
What does a generator do?
It turns Mechanical energy into electrical energy.
100
What does conversation mean?
It means saving or presenting
100
What reverses a current for a DC motor.
What is a commentator.
200
What are two causes of earth's magnetic field?
1. It has a iron and nickel core.
2. Earth rotates
200
A blank, can create a electric current through a wire?
What is an magnetic field?
200
What are four sources of Mechanical energy?
What is Gas, Steam, Coal, and Nuclear Power.
200
True or false, conserving saves money.
What is true.
200
What does MRI stand for
What is Magnetic Resonance Imaging
300
A temporary magnet is made this way.
What is by taking a magnetic substance and stroking it against a permanent magnet?
300
What does an electromagnet need?
a. source of electricity
b. a conductor
c. a iron or nickel core
300
What two businesses might need a backup generator?
What is a hospital, or a food factory?
300
What keeps hot air outside?
What is a curtain?
400
What are 3 materials that stick to magnets.
What are iron, nickel, cobalt.
400
What does a electric motor do?
What is it uses a electromagnet to change electrical energy into mechanical energy?
400
How can you conserve water?
You can turn off sinks all the way, take shorter showers, and not take a lot of water and dump it down the drain.
400
How does a compass work?
The red part of it always points north because the red part is a magnet that is attracted to earth's magnet
500
Describe what happens to magnets in these situations.
a. North Pole to North Pole
b. South Pole to South Pole
c. South Pole to North Pole
d. North Pole to South Pole
a. repel
b. repel
c. attract
d. attract
500
What are some things that use electromagnets?
What are door bells, airplanes, refrigerators.
500
What are the four parts of an AC motor?
a. rotor
b. power source
c. brushes
d. permanent magnet
500
Some ways to conserve energy?
A. turn off lights when no one is in the room
B. open blinds instead of lights
C. turn off electronics when they are not is use
D. conserve water
500
List all the things in an electric power grid.
a. power plant
b. turbine
c. generator
d. transformer
e. transmission lines
f. transformer
g. meter
h. wires in walls