Show:
Electricity
Magnetism
Scientists
Electromagnets
Devices
100
What do electrons make up besides protons and neutrons?
What is atoms?
100
Any material that attracts iron or materials containing iron.
What is a magnet?
100
This country discovered the material magnetite.
What is Greece?
100
What are electromagnets?
What is a magnet with an electric current?
100
A device attached to the armature to reverse the direction of the electric current in the wire.
What is a commutator?
200
What is the force between charged objects?
What is electric force?
200
Groups of tiny atoms in the same areas.
What is domains?
200
Who discovered that an electric current could make a magnetic field?
What is Hans Christian Oersted?
200
What is electromagnetism?
What is the interaction between electricity and magnetism?
200
A device that measures electrical current.
What is a galvanometer?
300
What is a material in which charges move easily?
What is an electric conductor?
300
What do magnetic forces result from?
What is spinning electric charges?
300
This British scientist published his results of Hans Christian Oersted's discovery.
What is Michael Faraday?
300
How can you make an electromagnet stronger?
What is increase the number of loops per meter in the solenoid?
300
A device that converts electrical energy into mechanical energy.
What is an electric motor?
400
What is resistance measured in?
What is ohms?
400
What happens when you cut a magnet in half?
What is makes two magnets?
400
Which American scientist discovered if a magnetic field could create an electric current?
What is Joseph Henry?
400
Why is the magnetic field of an electromagnet hundreds of times stronger than the magnetic field of just the solenoid?
What is it also has the power of a magnetized core?
400
A device that converts mechanical energy into electrical energy.
What is an electrical generator?
500
Name two types of electric circuits.
What is a series and parallel circuit?
500
How do you make a magnet?
What is rub a magnet on a piece of metal?
500
Who suggested that magnets point north because the earth is a giant magnet?
What is William Gilbert?
500
Give an example of an electromagnet.
What is a doorbell?
500
A device that increases or decreases the voltage of alternating current
What is a transformer?