Circuits Quizizz 2

Focus on the red LED

The GRAY LED is in _______ with the red LED

• series

• love

• parallel

• no connection

Answer explanation

The path from power to ground for the red LED must also go through the gray LED

Focus on the red LED

The BLUE LED is in _______ with the red LED

• series

• love

• parallel

• no connection

Answer explanation

While they share the same power/ground, they are 2 different paths to get from power to ground

Focus on the red LED

The GREEN LED is in _______ with the red LED

• series

• love

• parallel

• no connection

Answer explanation

The green LED is not connected at all

Mr. Luong wants to power an LED in a way that can be turned on and off

He should use...

• 5V/3.3V pins

• Digital Pins (the numbered pins)

Answer explanation

The digital pins let us turn power on and off based on our code.

Look at the picture on the left

How much resistance does the resistor provide?

• 21

• 210

• 1000

• 220

Answer explanation

Brown = 1 Black = 0 Red = 2

10 * 10^2

= 1000

Can also think of it as

10 + 2 more 0's

1000

Look at the picture on the right

How much resistance do the resistors in Resistor A provide?

• 560

• 1600000

• 650

• 916

Answer explanation

Green-Blue-Brown

= 56 * 10^1

= 560

The pins in the top 2 and bottom 2 rails are connected...

• horizontally

• vertically

• diagonally

• not connected

The pins in the middle rails are connected...

• horizontally

• vertically

• diagonally

• not connected

Why isn't this circuit working?

• The pins for the wire, button, and led are not lined up correctly

• Buttons don't exist

• The circuit is correct, so one of the parts must damaged

• There is too much current running through the circuit

Answer explanation

Remember the middle pins connect only vertically, not diagonally.

Why isn't this circuit working?

• The pins for the wire, button, and led are not lined up correctly

• The LED is backwards, the LONG leg should be towards power

• The LED is backwards, the SHORT leg should be towards power

• There is too much current running through the circuit