When a driver presses down on the pedal, a ___________ delivers the right amount of electric current to the motor.

An _____________ and a permanent magnet both have a magnetic force.

The filament in a toaster acts like a _________ and changes some of the electrical energy into ___________.

What does electric current change into after it passes through the LED?

Which machine does NOT use an electromagnet?

In a hearing aid, electrical energy is changed into __________.

An electric motor changes electrical energy into _________.

The source of electricity for an electric car is a ___________.

_______________ is the flow of electricity.

________________ is a tiny unit of light energy.

________________ a path along which an electric current flows.

______________ is a device that converts electric current into sound waves.

_____________ is to send out energy in waves or rays.

_____________ is a particle of an atom with a negative charge.