Show:
Magnets
Circuits
Static, Electricity, Cells
Electromagnets
Circuits
Miscellaneous
100
A magnet's property of attracting materials such as iron and steel is
What is magnetism
100
This opens and closes the circuit
What is the switch
100
The form of energy that comes from charged particles
What is static electricity
100
The wires in an electromagnet cause this to happen around the core
What is a magnetic field
100
A continuous flow of negative electric charges
What is an electric current
200
The space in which the force of a magnet can act is called its
What is magnetic field
200
This circuit has more than one pathway for current to follow
What is a parallel circuit
200
This changes energy of motion into electrical energy
What is a generator
200
What is not necessary to build an electromagnet: a motor, a steel rivet, a D-cell, wire
What is a motor
200
A single pathway for electricity to flow through this type of circuit
What is a series circuit
300
Unlike poles of magnets do what??
What is attract
300
This melts or breaks when the circuit is overloaded.
What is a fuse
300
A device that changes the voltage of a current is a
What is a transformer
300
What can you do with the wire to make your electromagnet stronger?
What is wind the wire more around the rivet
300
This moves in a compass when it comes in contact with a magnet.
What is the magnetic needle
400
A magnet is strongest here
What is at its poles
400
A path along which negative charges can flow
What is an electric circuit
400
True or False In wet cell, the zinc case is the negative end of the cell
What is false
400
An electromagnet is what kind of magnet-temporary or permanent?
What is temporary
400
This is material that doesn't let electricity flow through
What is an insulator
500
When a temporary magnet is created from a permanent magnet and a piece of iron or steel
What is induced magnetism
500
Materials that allow electricity to pass through them most easily
What are conductors
500
When negative charges jump between the cloud and the ground there's an electric discharge called
What is lightning
500
This type of circuit has 2 or more pathways for electricity to flow
What is a parallel circuit
500
When a lightbulb burns out in a series circuit what happens to the rest?
What is they all blow out