Circuit Review

A class prepared some electrical circuits using battery, connecting wires, and three light bulbs.  Which of these circuits can make the three bulbs light?

• A

• B

• C

• D

A student builds a circuit made up of a battery, two light bulbs, and a switch. What will the student most likely observe in this circuit?

• Light bulb 1 and light bulb 2 will both be on

• Light bulb 1 will be off, but light bulb 2 will be on

• Light bulb 1 and light bulb 2 will both be off

• Light bulb 1 will be on, but light bulb 2 will be off

The diagram shows a series circuit with three lit bulbs. How many of the bulbs will remain lit if the wire is cut a the point shown by the arrow?

• 0

• 1

• 2

• 3

A string of lights with small bulbs is shown below. The bulbs are connected by wire that is covered in an insulator. When the lights are on, electricity travels in....

• a complete circuit

• a sound wave

• a light ray

• an incomplete path

In the picture, if you replace the paper clip with a plastic spoon, what happens? 

• The bulb doesn't light

• The bulb is dimmer

• The wires get hot

• There is no charge

Why is electrical wiring usually made from copper?

• Because copper is shiny

• Because copper conducts electricity

• Because copper is not magnetic

• Because copper insulates electricity

A fifth grade class constructed this circuit.  Which of these objects most likely made the light glow when connected to points X and Y?

• plastic straw

• cotton string

• aluminum foil

• rubber eraser

Rube Goldberg was an artist who drew cartoons that showed a very complicated way to do a simple task. The picture shows a cartoon like the ones Goldberg drew. Which form of energy is used to turn on the switch? (5.6A)

• Light energy

• Thermal energy

• Electrical energy

• Mechanical energy

Which object requires only mechanical energy to perform its main function? (5.6A)

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Which of these devices is the only one NOT designed to produce both sound and light energy? (5.6A)

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