Two Kinds of Charge
What makes a circuit
Finding the North Pole
Electromagnet
How are electromagnets used
100
The buildup of electric charges in one place.
What is static electricity
100
A flow of electric charges.
What is an electric current.
100
North and the south pole.
What two different poles does a magnet have?
100
A magnet that has coils of current carrying wire around a iron core.
What is an electromagnet?
100
A device that changes electrical energy into kinetic energy.
What is a electric motor?
200
Positive and negative
What are the 2 types of charge?
200
An electric circuit with only one path for current.
What is a series circuit?
200
They push against each other.
What happens when two north poles are near?
200
Headphones.
What is example of an electromagnet?
200
The energy of motion.
What is Kinetic energy?
300
Static electricity.
What is the buildup of charges in 1 place?
300
Has more than 1 path for the current to follow.
What is a parallel current?
300
In a steel building.
What is one place you cant use a magnet to find north?
300
The one with more coil.
Would a electromagnet be stronger with less or more coils of wire?
300
It could turn really hot.
What happens when you turn on a light and leave it on for a while?
400
The area around electric charges, where electric forces can act.
What is an electric field?
400
How much a material opposes the flow of a current.
What is a resistance?
400
It wouldn't point north.
What would happen if you placed a compass on something metallic?
400
Yes
Is there an electromagnet in a telephone.
400
The clapper vibrates back and fourth, ringing the bell.
How are doorbells are used?
500
A negative and positive charge that pushes against each other.
What is an electric force?
500
The space in which a magnetic force acts around a magnet.
What is a magnetic field?
500
It points north.
What is a compass?
500
A device that changes other forms of energy into eletrical energy.
What is a generator?
500
It could cause wires to overheat and start a fire.
What happens when you plug in too many plugs in an outlet?
M
e
n
u