Electric Circuits Review

Which statement is true about the light bulb?

• The light bulb is on because it is part of a closed circuit.

• The light bulb is on because it is part of an open circuit.

• The light bulb is off because it needs another wire to complete a closed path for electrons.

• The light bulb is on because it needs another wire to complete a closed path for electrons

Which statement is true about the buzzer?

• The buzzer is on because it is connected correctly to the battery.

• The buzzer is on because it is connected to the light bulb.

• The buzzer is off because it is not connected to a switch.

• The buzzer is off because it part of an open circuit.

Tags

NGSS.MS-ETS1-1

Which bulbs are on even if the switch is open.

• Only the red bulb is on.

• Only the blue, green and purple bulbs are on.

• All of the bulbs are on.

• Only the blue bulb is on.

Which color bulb will turn on when the switch is closed?

• Purple

• Blue

• Red

• Green

Which bulbs are off because the switch is open?

• Only LED 1

• All of them are off.

• LED 2 and 3

• LED 2, 3, and 4

Which LED bulbs are on even though the switch is open?

• LED 2, 3 and 4

• Only LED 1

• They are all on.

• LED 2

The bulbs are off. Which procedure will turn the bulbs on?

• Disconnect wire 4

• Close the switch.

• Replace the batteries.

• Remove one bulb.

Which switch needs to be closed so that only the yellow bulb lights up?

• Switch 1

• Switch 2

• Switch 3

• All of the switches.

Tags

NGSS.MS-ETS1-2

Which switch needs to be closed so that only the green bulb lights up?

• Switch 1

• Switch 2

• Switch 3

• Switch 4

Tags

NGSS.MS-PS3-5

All of these statements are true about this circuit EXCEPT -

• This is a closed circuit so the light bulb is on.

• This is an open circuit so the light bulb is off.

• The battery is the source of energy.

• The wires are the path for electron flow.