A light bulb changes electrical energy into

• light energy only
• heat and chemical energy
• light and heat energy
• light and chemical energy

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

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

Tags

NGSS.MS-ETS1-1

this circuit is .....?

• open
• parallel
• closed
• The cutest little circuit evah!

When all parts of the circuit are connected it is a ______ circuit. 

• open
• closed

Why is electrical wiring usually are covered with a layer of plastic?

• To make it look pretty

• To help electricity flow along the wire

• To make it safe

• To add more energy

Tags

NGSS.MS-PS1-3

The diagram shows an electric circuit with four bells that a student plans to build. When the student connects the wire as shown, which of the bells will ring?

• Bell 1 only

• Bells 1 and 4 only

• Bells 3 and 4 only

• Bells 1, 2, 3, and 4

Tags

NGSS.MS-PS2-3

Will the light bulb in this circuit light and why/why not?

• yes, because it has two batteries
• no, because the switch is open
• yes, because it is in a circuit
• no, because the bulb is burned out

Is the following photo of an open circuit or closed circuit? 

• A closed circuit which allows electricity to flow
• An open circuit which does not allow electricity to flow

A path along which electric charges can flow

• Series Circuit

• Circuit

• Parallel Circuit

• Conductor