What is the point of the magnet that points to the north and it's opposite?
100
Used to measure current:
What is a galvanometer?
100
Generators contain a ____ __ ____ attached to a rod that is free to rotate.
What is a coil of wire?
100
The interaction between electricity and magnetism.
What is Electromagnetism?
100
A coil of wire with an electric current in it.
What is a Solenoid?
200
A universal force having to do with magnets?
What is a magnetic force?
200
A device within an electric motor (that uses a direct current) that attaches to the armature to reverse the direction of the electric current:
What is a commutator?
200
The problem Faraday had with his experiment.
What is not being able to make an electric current in the second wire?
200
Any material that attracts iron or materials containing iron.
What is a Magnet?
200
A device that converts electrical energy into mechanical energy.
What is an Electric Motor?
300
The part of an atom that is negatively charged, and that induces a magnetic field when they it moves around.
What is an electron?
300
Direction of the magnetic field produced by an electric current depends on:
What is the direction of the current?
300
In a hydroelectric power plant, water flows down a chute, turning a _______, which spins the magnet of the generator, inducing an electric current.
What is a turbine?
300
A device that converts mechanical energy into electrical energy.
What is an Electric Generator?
300
A device that increases or decreases the voltage of alternating current.
What is a Transformer?
400
Tiny areas in which atoms are grouped within materials such as iron and copper.
What is a domain?
400
Physicist who discovered the relationship between electricity and magnetism.
What is Hans Christian Oersted?
400
Joseph Henry made the discovery that a magnetic field could make an electric current , but _______ _______ published his findings first and with more detail.
Who is Michael Faraday?
400
The process of creating a current in a circuit by changing a magnetic field.
What is an Electromagnetic Induction?
400
The force of attraction or repulsion generated by moving or spinning electric charges.
What is a Magnetic Force?
500
Magnets made of metal that have strong magnetic properties.
What is a ferromagnet?
500
Two things that would make an electromagnet stronger:
What is an increase in the number of loop per meter in the solenoid, and an increase in the electric current within the wire?
500
In most large generators, the ______ is turned instead of the _____.
What is a magnet and a coil?
500
One of two points, such as the ends of a magnet, that have opposing magnetic qualities.
What is a Magnetic Pole?
500
A coil that has a soft iron core and that acts as a magnet when an electric current is in the coil.