Microbit Countdown timer

What is the first step in creating a countdown timer in MakeCode for micro:bit?

• Writing a loop for the countdown

• Displaying the countdown on the screen

• Creating a variable for the countdown

• Setting up a pause block

How do you make the micro:bit count down instead of up?

• By adding 1 to the count variable

• By displaying the count on the screen

• By subtracting 1 from the count variable

• By using a pause block

What block is introduced to control the speed of the countdown?

• Change count block

• Logic block

• Pause block

• Show number block

What is the purpose of the pause block in the countdown timer?

• To make the countdown visible

• To slow down the countdown

• To stop the countdown at zero

• To start the countdown

What does changing the pause duration to 500 milliseconds do to the countdown?

• Makes it slower

• Stops it at zero

• Starts it automatically

• Makes it faster

Why was a bar graph chosen for the countdown visualization?

• It uses less battery

• It's easier to read than numbers

• It counts up faster

• It looks better on the micro:bit screen

Which button is used to start the countdown timer?

• No button; it starts automatically

• Both buttons A and B

• Button B

• Button A

How do you stop the countdown timer?

• By pressing Button B

• By resetting the micro:bit

• By removing the battery

• By setting the count to zero

What variable is used to track whether the timer is running?

• Bar graph size

• Pause duration

• Timer running

• Count

What is the effect of pressing Button B during the countdown?

• It pauses the countdown

• It resets the countdown

• It stops the countdown

• It speeds up the countdown