Energy Transformation and Circuits

If the electric circuit is CLOSED, the switch is _______. 

• ON

• OFF

If the electric circuit is OPEN, the switch is ____.

• ON

• OFF

What material would be safest to use as an insulator to cover electrical wires?

• rubber

• tin

• aluminum

• water

An outlet in a wall and a battery are examples of __________.

• Power source 

• Load

• Energy pathway

• ALL of them 

A _______ controls whether an electric device is ON or OFF. 

• electrical switch

• electric circuit

What would happen to the light bulb if the switch changes from closed to open?

• It would be duller.

• It would be brighter.

• It would stop glowing.

• It would start glowing.

Tags

NGSS.MS-PS1-4

Look at the four ways that you could connect a battery, a paper clip, a light bulb, and some wire.

Which one of these would light the bulb?

• 
• 
• 
• 

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

What will happen if Bulb A burns out?

• Bulbs B & C will continue to shine

• Bulbs B & C will stop shining

• Bulbs B & C will shine more brightly

• Bulbs B & C will shine less brightly

What happened when Gary closed the switch?

• The bulb lit, and the buzzer sounded at the same time.

• Nothing happened because light bulbs and buzzers must be in different circuits.

• Nothing happened because there was no source of electrical energy in the circuit.

• Nothing happened because the circuit needed to have two switches.

Jay uses various objects to complete a circuit. He compares how bright a bulb glows using each object. His results are shown here.

Which object is the BEST electrical conductor?

• nail

• eraser

• crayon

• pencil lead