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Section 1
Section 2
Section 3
Definitions
Energy
100
what is an electric current
What produces a magnetic field
100
what is a device that uses an electric current to turn an axle.
What is an electric motor
100
what is the motion of a conductor through a magnetic field.
What is electromagnetic induction?
100
a transformer is a device that increases or decreases voltage.
What is a transformer
100
what is the ability to move an object over a distance.
What is energy?
200
what is a coil of wire with a current
What is a solenoid
200
what is a galvanometer.
What device measures small currents.
200
what is a current consisting of charges that flow in one direction only.
What is direct current?
200
what is the energy associated with electric currents is electrical energy.
What is electrical energy?
300
what is used to lift heavy objects such as cars and other heavy metal objects.
What are electromagnets used for.
300
what is a commutator.
What turns the armature.
300
induced current in the wire that is reversed is alternating current.
What is alternating current
300
what is the energy an object has due to its movement or position.
What is mechanical energy?
400
What is Hans Christian Oersted.
What is the name of the danish who produced a current in a wire while teaching a class at the university of Copenhagen.
400
what is transforms electrical energy into mechanical energy.
What does an electric motor do?
400
an electric generator is a device that transforms mechanical energy into electrical energy.
What is an electric generator
500
what is the field can be turned on or off, have its direction reversed, or have its strength changed.
What are the three distinct characters of a magnetic field produced by a current.
500
one increases voltage while the other decreases.
What is the difference between a step-up transformer and a step-down transformer.