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Electromagnets
Electric Current
Generator
Magnetism
Electric motor
100
What three things do you need to make an electromagnet?
nail, battery, copper wire
100
A complete or unbroken path in which electricity flows.
closed circuit 
100
A coil wire spinning inside of a magnet can form an__________________ current.
electric
100
__________ is the attraction or repulsion of magnetic (metal) materials.
Magnetism
100
changes________ electrical energy to 
electrical
200
When an electric current flow through a wire wrapped around an nail, it makes a ______________.
magnet
200
It supplies the electricity 
power source
200
A _______ spins the coil of wire inside of the magnet.
turbine 
200
The same poles______.
repel (push away)
200
Changes electrical energy to _____________ energy.

Mechanical 

300
A magnet loses its magnetism if the electric 

A. starts

B. Stops 

Stops
300
Moves the electricity around the path.
conductor
300
Changes_______ energy to electrical energy.
mechanical 
300
The opposite poles_______.
attract (pull together)
300
Takes energy from a battery to spin copper wire inside of a _______.
magnet 
400

A device made of a battery and a copper wire wrapped around a nail.

electromagnet
400
Converts the electricity into another form of energy.
Transformer
400
Changes mechanical energy to_____ energy.
Electrical
400
A _______ _______ surrounds a magnet allowing it to apply its forces without touching the magnet.
magnetic field 
400
Is used as a_________ in a circuit.
transformer
500
What will an electromagnet pick up?

A. wooden toothpick 

B. plastic spoon

C. metal paper clip

C. metal paper clip
500
This does not allow electricity to pass
insulator 
500
Is used as ______ _______ in a circuit. (outlet)
power source
500

A magnetic field surrounds a magnet allowing it to apply its _____ without touching the magnet.

forces
500
Is used as a transformer in a_______.
circuit