Circuits and Energy

A student constructs the circuit shown for a science demonstration. With the switches in these positions, which lights are on?

• All the lights

• Lights 1 and 2 only

• Lights 3 and 4 only

• None of the lights

A student wants to build a circuit with four lightbulbs and one bell. The student wants to place a switch in the circuit so that only one light will still be on and the bell will still ring when the switch is opened. Which of these circuits should the student build?

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• 
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• 

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

______________ allows electricity to flow through it.

• a conductor

• an insulator

• a magnet

________________ stops the flow of electricity.

• A conductor

• An insulator

• A magnet

A group of students is building the circuit represented in the diagram. What object can be used at Position X for the buzzer to sound when Switch K is closed?

• A power source

• An insulated wire

• Another switch

• Another bulb

To complete a circuit the switch must be-

• unattached

• open

• closed

A complete electrical path works with only a wire and a bulb.

• True

• False

To make a circuit complete you must have a-

• complete path

• switch

• bulb

When the switch is closed the light-

• turns on

• stays off

• burns out

The plastic around the wire is-

• a conductor

• an insulator

Tags

NGSS.MS-PS2-3