Electricity and Circuits Quiz

James connected some wires, a light, and battery in a science lab to build a circuit. Once connected, he left the light on for a few minutes. He was surprised to find that one of the wires was very hot even though it was insulated. What explains why the wire was hot?

• The wires were not connected correctly in the circuit.

• Energy was transferred from the battery throughout the circuit.

• Electrical circuits produce light and not heat.

• The wires are insulated and could not have been hot.

What kind of energy makes a hair dryer, television, computer, and refrigerator work?

• thermal

• electrical

• chemical

• mechanical

How is electrical energy used?

• It can be transformed into space.

• It can be transformed into matter.

• It cannot be transformed into anything.

• It can be transformed into other forms of energy.

Electric wires are made out of metal, usually copper. This is because most metal is relatively inexpensive and an excellent ______________.

• current

• transmitter

• conductor

• insulator

Electricity is one of the most usable forms of energy. Which of the following does not use electricity?

• car

• computer

• television

• charcoal grill

Juan wants to make a game that lights up when he answers correctly.

• True

• False

What material should he use to make the circuit?

• metal wire

• plastic wire

• cotton string

• nylon fishing line

What is the main part of a circuit?

• metal wires

• plastic straws

• cotton strings

• cat gut strings

Tom wants to build a circuit. Which of the following will he need?

• metal wire and a battery

• plastic wires and a battery

• fabric strips and a battery

• leather strips and a battery

Which of the following objects pictured require electricity to operate?

• radio

• bicycle

• push mower

• charcoal grill