Electrical Circuits Day 4

Which lights would turn on if you closed switches 1 and 2?

• red, blue, and green

• red and white

• red and blue

• blue, white, yellow

In order to produce ONLY LIGHT energy, which switch(es) would you need to close?

• switch 1 and switch 2

• switch 1, 2, and 3

• switch 2 and switch 3

• switch 1 and 3

Does energy flow through an open or closed switch?

• open switch

• closed switch

• both open and closed

• neither

^{Is this circuit open or closed?}

• Closed

• Open

What would happen if the switch was opened?

• nothing, the light bulbs would still work because there is a complete path

• The light bulbs would not work because the path was broken

• the battery would loose energy

• the wires would be cooled from air

An incomplete circuit is shown.
To complete the circuit, a wire should be placed from —

• Point D to Point C

• Point B to Point C

• Point A to Point D

• Point B to Point D

A fifth grade class constructed this circuit.  Which of these objects will complete the circuit.

• plastic straw

• cotton string

• aluminum foil

• rubber eraser

Tags

NGSS.4-PS3-2

This instrument can be used to see if materials conduct electricity.  Which of these groups contains items that could all conduct electricity to complete the circuit?

• rubber ball, plastic comb, nail

• paper clip, penny, screw

• cork, dollar bill, tweezers

• pencil, eraser, spoon

when the circuit is _____, current does not flow.

• open 

• closed

If we were to open the switch which light bulbs will still be on?

• All of the light bulbs will work

• Only the red and green will glow

• Only the green and blue will glow

• None of them will work