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SCIENCE

QuestionAnswer
What type of energy comes OUT of a generator Electrical
Electric fields are often associated with what other kind of field? magnetic fields
When two magnets attract, they ______________ Pull together
What happens to the strength of an electromagnet as you add more coils around it? Increases
When two magnets repel, they ________________ Push apart
Surrounding every magnet is a __________ __________. Magnetic field
In an electric generator, the energy transformation begins as ---- mechanical and becomes electrical
What is the transfer of energy in when you plug in a motor and it spins? electrical to mechanical
What can you use to make an electromagnet? Wire, battery and iron ore (nail)
True or False: A magnetic field is invisible. true
Electricity is the flow of _________. electrons
What device is made of coils of wire with an electrical current passing through it in order to generate a magnetic field? Electromagnet
In a _______ a spinning turbine moves magnets which generates an electric current. generator
What energy do you put IN to a generator? Mechanical
How are electromagnets different from magnets? you can turn an electromagnet on/off
What two forces are required for generators and electric motors to work? electricity and magnetism
In an electric motor, the energy transformation begins as ---- electrical and becomes mechanical
Generators are devices that convert _____ energy into _____ energy. mechanical; electrical
A material in which electrons are able to move easily Conductor
Iron, Nickel and cobalt are all __________________ materials magnetic
Created by: greene.juliana
 

 



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