Vocabulary 1
Vocabulary 2
Electricity
Magnetism
Random
100
What type of circuit has only 1 path for electrical charges to flow?
series
100
What type of circuit has 2 or more paths for electrical charges to flow?
parallel
100
What happens when a light bulb goes out in a series circuit?
All the bulbs go out
100
Opposite poles ___________.
attract
100
Describe how you know our houses use parallel circuits.
When one light goes out the others still remain lit.
200
What material does NOT easily allow electricity to pass through it?
insulator
200
What material allows electricity to pass through it?
conductor
200
What type of circuit do our houses use?
parallel circuit
200
Where is a magnetic field strongest?
at its poles
200
What is the earth like?
a magnet
300
What is an electric current?
the flow of an electric charge through a material
300
What is a coil of wire that causes a magnetic field when current moves through the wire?
electromagnet
300
Negative charges in a balloon are attracted to what kind of charges in the wall?
positive charges
300
If a magnet is broken into two parts will it still have a north and south pole?
yes
300
Why does an electromagnet still work after it has been turned off?
The electrical charges are still in the wire causing it to be magnetic.
400
What is static electricity?
the uneven balance of positive and negative charges
400
What is a magnetic field?
the invisible force that loops between the poles of a magnet
400
How is electricity caused?
when positive and negative charges no longer balance
400
How does a compass work?
it reacts to the Earth's magnetic poles by moving the needle to always face north
400
Why does a balloon stick to the wall?
The negative charges are attracted to the balloon and they become attracted to the positive charges in the wall. They repel the negative charges in the wall.
500
What is the force that acts on moving electric charge and magnetic materials that are near a magnet called?
magnetism
500
What is the difference between an open and closed circuit?
An open circuit means there is a break somewhere that does not allow the electrical charges to flow through the wire. A closed circuit allows electrical charges to flow through the wires from the power source.
500
Where do negative charges gather in a cloud before energy is released as lightning?
at the bottom
500
How can an electromagnet be made stronger?
More coils can be wrapped around the iron core.
500
What two types of metal are the most attracted to magnets?
steel and iron
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