Principles of Electricity

Electricity is the movement of electrons from one atom to another.

• True

• False

Tags

NGSS.HS-PS2-5

What unit of electricity measures the amount of current ?

• Volts

• Coulomb

• Ampere

• Ohm's

What is a device used to protect circuits from an overload of current?

• fuse

• hot wire

• isulator

• neutral wire

Why is static electricity not useful as a power source?

• Because electrons aren't transferred in bursts of static electricity
• Because all energy is released at once in static electricity
• Because static electricity is not a real form of electricity
• Because static electricity only occurs in lightning

What is a current?

• A steady flow of electricity
• A short burst of electricity
• A wire along which electricity flows
• A power source that supplies electricity

What device opens and closes an electric circuit?

• A switch
• A power source
• A load
• A current

Which of the following materials is an electrical conductor?

• Plastic spoon

• Silver-colored plastic spoon

• copper spoon

• wooden spoon

Particles with the _________ charge are attracted to each other.

• same

• opposite

Like charges will _______.

• attract

• repel

Tags

NGSS.MS-PS2-3

Which of the following is a good insulator?

• copper

• aluminum

• glass

• silver

Tags

NGSS.MS-PS3-3