MAGNETISM

Electromagnet is made of a coil of wire in which an electric current flows.

• True

• False

What is the main device/s that use to make an electromagnet?

• battery and magnet

• magnet

There are 2 ways to make an electromagnet stronger.

• True

• False

making an electromagnet stronger by make 1 turn of coil wire in a magnet.

• False

• True

An electromagnet can be made stronger by adding a/an...

• iron core

• iron nail

The instrument used to measure an electric current flow is called...

• voltmeter

• ammeter

The symbol of electric current unit is...

• I

• A

What is the instrument used to show the electron flow through a wire in a car?

• galvanometer

• speedometer

An electromagnet can be made stronger by increasing the electric current in the ...

• coil

• battery

A device that changes electrical energy into mechanical energy is called..

• electric motor

• electric current