Electromagnets
Electric Circuit
Generators
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 of wire spinning inside of a magnet can form an____________ current.
electric
100
_____________  is the attraction or repulsion of magnetic materials.
Magnetism
100
Changes __________ energy to mechanical energy.
electrical
200
When an electric current flows 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 a __________   ________ 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

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