Electricity and Circuits

A device that is used to break an electric circuit is called _______________.

• Cell

• Switch

• Circuit

An electric cell has _______________ terminals and ___________ filament .

• Three , Two

• Two , Two

• Two , One

What is a circuit?

• An outlet or switch

• A path which an electric current flows

• A poor conductor

Electric current moves in only one direction.

• True

• False

A conductor is ____________

• Something that allows electric current to flow easily

• Something that limits the flow of electricity

__________ is the positive terminal of an electrical cell.

• Metal disc

• Metal case

• Metal cap

• Metal base

A combination of two or more electric cells is called _______ .

• Electric circuit

• Battery

• Terminals

• None of these

A material which does not allow the electricity to pass through it is _____________ .

• Conductor

• Electric cell

• Insulator

• None of these

Tags

NGSS.MS-PS2-3

The electric current in a closed circuit always flows from the _______ terminal of the electric cell to the ______ terminal.

• Negative to positive

• Positive to negative

• Positive to positive

• None of these

Why do electricians wear gloves made of rubber?

• It is soft.

• It is waterproof.

• It is an insulator.

• It is inexpensive.