Show:
Magnets
Vocabulary #1
Electricity
Vocabulary #2
Electromagnet
100
A ___ has a magnetic field and magnetic poles.
What is a magnet?
100
A vocabulary term that means "The two areas on a magnet where the magnetic force is greatest".
What is magnetic poles?
100
Objects with unlike electric charges ____.
What is attract?
100
A vocabulary term that means " An object that attracts iron and certain other metals".
What is magnet?
100
Electromagnets mainly attract ___.
What is iron?
200
This type of magnet keeps its magnetism for a long time.
What is a permanent magnet?
200
A vocabulary term that means "A material that resists the flow of electricity".
What is insulator?
200
This type of circuit has a single pathway for electric current to pass through.
What is series circuit?
200
A vocabulary term that means "A continuous flow of electric charges".
What is electric current?
200
A strong temporary magnet that uses electricity to produce magnetism.
What is electromagnet?
300
This type of magnet loses its magnetism after a short time.
What is a temporary magnet?
300
Vocabulary term that means "A device that uses magnetism to convert energy of motion into electrical energy".
What is generator?
300
Objects with like charges ___.
What is repel?
300
A vocabulary term that means "A material that can carry electricity or heat".
What is conductor?
300
How is an electromagnet different than a regular magnet?
Its magnetic field can be controlled. (Turned off and on.)
400
The Earth has a magnetic field because its center is made up of mostly ___.
What is molten iron?
400
Vocabulary term that means "The pathway that electric current follows".
What is electric circuit?
400
This type of circuit has connected parts so that the electric current can more along more than one pathway.
What is parallel circuit?
400
Vocabulary term that means "A device that turns chemical energy into electrical energy".
What is electric cell?
400
Electricity can produce magnetism and magnetism can produce electricity. Together magnetism and electricity can produce ...
What is energy of motion?
500
The Earth is considered a ___ magnet because it has two poles.
What is bar?
500
Vocabulary term that means "An electric charge that builds up on a material".
What is static electricity?
500
You walk across a carpet and touch your cat. Both you and your cat feel a shock. This is ___.
What is electric discharge from static electricity?
500
Vocabulary term that means "A device that changes electrical energy into energy of motion".
What is motor?
500
You increase the strength of an electromagnet by ...
What is increasing the number of coils?