Closed and Open Circuits

Which parts are needed to complete a simple circuit lighting a lightbulb?

• wire, battery, lightbulb

• wire, buzzer, lightbulb

• wire, battery, buzzer

• wire, switch lightbulb

A complete circuit has .......

• motor in it

• switch in it

• two bulbs in it

• no breaks in it

Which bulbs will light?

• and 2

• and 3

• and 4

• and 2

Tags

NGSS.MS-ETS1-1

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

An incomplete or broken circuit.

• Closed Circuit

• Open Circuit

• Cracked bulb Circuit

When the switch is closed, the light-

• turns on

• stays off

• burns out

If the lights are off, the circuit is-

• open

• closed

this is the symbol for a _____?

• switch

• light 

• battery

• wires

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 change

Is this circuit a closed or an open circuit?

• Closed Circuit

• Open Circuit