Electromagnet Motors Generators

Which statement best explains the flow of energy through a motor?

• battery-->electrical current-->copper wire rotor -->magnet--> mechanical energy

• battery--> magnet--> electrical current--> copper wire rotor--> mechanical energy

• magnet--> mechanical energy--> copper wire rotor--> battery--> electrical current

• magnet--> copper wire rotor--> mechanical energy--> battery--> electrical current

What do we call a device that converts electricity into mechanical movement?

• electric charge

• electric motor

• electric current

• electric plasma

Iron, Nickel and cobalt are all __________________ materials

• Shiny

• poles

• magnetic

• cold

Which of the following is NOT part of an electromagnet?

• Wire or solenoid

• Ferromagnetic (iron) core

• Toothpick

• Power source/Battery

This picture shows a turbine generator used to produce electricity at a geothermal power plant.
Electricity is produced by using steam to _____________.

• heat the turbine generators

• spin the turbine generators 

• reduce friction in the turbine generators

• reduce emissions from the turbine generators

A type of magnet that has temporary magnetic effect when electric current flows through it.

This refer to

• Electric

• Electronic

• Electrostatic

• Electromagnet

The process of generating the current in a conductor is called as 

• Electro motive force 

• Electromagnetic induction 

• generator energy conversion 

• induced voltage

In a(n) ____________, a spinning turbine moves magnets which generates an electric current.

• electromagnet

• permanent magnet

• motor

• generator

What is the device seen here?

• generator

• electric motor

• electromagnet

• magnet

The strength of the magnetic field of a electromagnet can be increased by

• Decreasing the number of coils.

• Increasing the number of coils

• Decreasing the current

• Increasing the resistance