Circuits #3

Which of these best completes the circuit?

• rubber band
• metal nail
• leather shoelace
• wooden toothpick

Electrical lights will not come on unless their electrical circuit is a --

• parallel circuit
• series circuit
• closed circuit
• short circuit

Which of these substances conducts electricity the best?

• wood
• brick
• copper
• plastic

Tags

NGSS.MS-PS2-3

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

• rubber
• tin
• aluminum
• water

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

Which light will be brighter and why?

• Bulb A because its circuit is closed
• Bulb B because its circuit is closed
• Bulb B because it has more volts
• Bulb A because it has less volts

This is an example of a/an:

• Closed circuit
• Open circuit

What BLOCKS THE FLOW of electricity through it?

• Conductors
• Insulators
• Resistors

How many lightbulbs will work if there is a break in the circuit at POINT A?

• 1
• 2
• 3
• NONE

How many lightbulbs will work if there is a break in the circuit at POINT B?

• 1
• 2
• 3
• NONE