Electricity
Magnetism
Force, Fields, and Electromagnets
Motors & Generators
Other
100

When electricity flows through a wire, what is created?

A magnetic field

100
When two poles are different, they ____.
What is attract?
100

What happens to force if we increase the number of magnets that are connected to each other?

Increases

100

What spins inside of an electric motor?

Coil or solenoid

100
If a circuit is closed, the electricity will _____.
What is flow?
200

Electricity consists flowing what?

electrons

200
When the two poles are similar, they ______.
What is repel?
200

Where is a magnetic field the strongest?

near the poles

200
Electric motors convert ____________ to ________.
What is electrical to mechanical?
200
This allows electricity to flow through it. An example is metal.
What is a conductor?
300

Who discovered that a current carrying wire caused a compass to point in a different direction?

Hans Oerstead

300
The ends of the magnet are called....
What is north pole and south pole?
300
How is magnetic force created?

Domains, moving electrons

300
Electric generators convert _________ to __________.
What is mechanical to electrical?
300
This stops the flow of electricity. An example is plastic.
What is an insulator?
400

What does increasing the current of an electromagnet do it ?

Make it stronger

400
A magnetic field is created by doing what with a wire.
What is running an electric current through it?
400
What do a bar magnet, electromagnet, and earth have in common?

miscellaneous answers

400
An electromagnet rotates by the poles of a magnet.This causes the opposite poles of the magnet to attract and the same poles of the magnet to push away.The coil then rotates creating electrical energy. Electric motor or electric generator?
What is an electric motor?
400
This type of generator has an alternating current.
What is an AC generator?
500

How can we increase the current of an electromagnet?

more batteries or bigger batteries

500
An electromagnet consists of these three items.
What is wire, power source and iron core?
500

Name 3 ways to increase the strength of an electromagnet.

more wraps.

closer wraps.

more batteries

500
Coils of wires are stationary while iron core rotates between magnets. An iron core is connected to a turbine that rotates by water, wind or steam. Electric motor or electric generator?
What is electric generator?
500
The magnetic field generated by a simple length of wire compared to a magnetic field generated by a coil of wire is weaker, stronger or the same.
What is weaker? The simple length of wire is weak. A coiled wire has a stronger magnetic field.
M
e
n
u