Quiz #5 Electricity & Electric Circuits

Which of the following statements is true?

• A circuit cannot work without a light bulb.

• A circuit cannot work without a switch.

• A circuit cannot work if it has a gap (if it is open).

• A circuit cannot work during the night.

What is a circuit?

• A constant flow of electricity 
• A path that a current can flow along

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

Tags

NGSS.MS-ETS1-1

In a computer, electric energy is transformed into all of the following except _______ energy.

• kinetic (motion) energy

• thermal energy

• sound energy

• Light energy

Electric current moves in only one direction. 

• True
• False

Will the light bulbs light up in this image?

• Yes, both of them will

• Yes, but only the one on the right

• No, neither of them will

• Yes, but only the one on the left

Tags

NGSS.4-PS3-2

A continuous flow of electricity is called_____________

• series
• circuit
• static
• current

When socks get stuck to towels in your dryer, this is an example of________________

• current electricity
• static electricity

Why are wires or other conductors in circuits often covered with insulators, such as rubber or plastic?

• It makes them look better.

• Insulation prevents electricity from passing through to you.

• It makes electricity pass therough the wire more efficiently.

• THe colors make it easy to tell which direction the electricity is flowing.

Where does electricity enter and exit the bulb?

• 1 and 2
• 2 and 3
• 3 and 4
• 4 and 1