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Why is electrical wiring usually made from copper?

• Because copper is shiny

• Because copper conducts electricity

• Because copper is not magnetic

• Because copper insulate electricity

Which of the following materials is an electrical conductor?

• Plastic spoon

• Silver-colored plastic spoon

• copper spoon

• wooden spoon

materials that allow electricity or heat to travel through it. METALS and Water are good conductors.

• insulator

• conductor

• series circuit

• power source

Materials that do not allow heat or electricity to flow. No Flow! Examples: rubber, plastic, wood, and cloth

• series circuit

• power source

• insulator

• conductor

 A light bulb changes electrical energy into

• light energy only
• heat and chemical energy
• light and heat energy
• light and chemical energy

What is a switch's function in a circuit?

• to make the current hotter or colder
• turn on and off the flow of current
• the pathway that current flows
• to add more power to the circuit

Which of the following can work as an energy source?

• Battery
  
• Light bulb
• Wire
  
• All of them

When a circuit is OPEN, will the output device turn on?

• No

• Yes

• Maybe

• I don't know.

A battery is

• where the current travels

• a path along which an electrical current flows

• a power source

• a thin, flexible conductor of electricity

Tags

112.6.b.8.C

112.6.b.8.B

If the electric circuit is CLOSED, the switch is _______. 

• ON
• OFF