Magnets
Electromagnets
Generators/Motors
Energy and Conservation
Miscellaneous
100
Magnetism is the strongest here.
What are the poles?
100
What is the definition of induction?
What is the process of getting electrons to move through a wire by changing the magnetic field.
100
What is The definition of watt?
What is the unit of measure of power.
100
What is the definition of watt.
What is the unit of measure of power
100
what is the definition of auroras?
What is Different Colors of light in the sky caused by molecules returning to a natural state and giving off their extra energy.
200
What two things cause earth's magnetic field?
1. What is iron and nickel core. 2. earth rotates.
200
How can a magnet be used to produce an electrical current?
What is by moving a magnet in and out of a coil of wire.
200
What does an electric motor do?
What is An electric motor uses an electromagnet to change electrical energy into mechanical energy.
200
What is the definition of kilowatts?
What is A measurement equal to 1,000 watts.
300
A temporary magnet is made this way.
What is You stroke a magnetic substances against a permanent magnet.
300
What are some examples of electromagnets from the book.
a. big cranes b. computers c. telephones d. doorbells etc.
300
Fill in the blank A ________ reverses current for a DC motor.
What is A commutator reverses current for a DC motor.
400
What are three materials that stick to magnets?
What is iron, nickel, and cobalt.
400
The three parts of electromagnet.
What is the power source, iron and nickel core, and conductor.
400
What are the four main part of an AC motor? A. B. C. D.
What is a. rotating coil or armature. b. an alternating electric power source. c. brushes that transfer the electric current to the armature d. permanent magnets that use the electric current to cause the armature to turn.
400
What is geothermal energy?
What is energy from within the earth.
400
What is the definition of Magnetic Domains.
What is A tiny magnetic regions in magnetic material that must be aligned in order for the material to be magnetic.
500
describe what happens to magnets 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
What is a. repel b. repel c. attract d. attract
500
How are electricity and magnetism related?
What is They both can generate an electric current.
500
What are the four processes of wind powered energy?
What is 1.The wind turns the blades of the turbine. 2. the rotor attaches to the shaft turns. 3. As the shaft turns it causes the gears in the gear box to turn. 4. The gears cause the generator to turn, producing electricity.
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