Unit 2 Micro:bit Test Review

The buttons and sensors on the Micro:bit are examples of...

• Output devices

• Input devices

• Memory

• Processors

What does this program do?

• Scrolls “hey!” on the screen forever.

• Scrolls “hey!” on the screen once when we press the A button.

• Scrolls “hey!” on the screen every time we press the B button.

• Scrolls “B” on the screen over and over.

What will we see on the Micro:bit display when the following code is run?

• A heart flashes 4 times, then a smiley face flashes once.

• A heart flashes then a smiley face flashes 4 times in total.

• A heart flashes 4 times, then a smiley face flashes 4 times.

• A heart flashes once then a smiley face flashes once.

What can we do with an if statement in Python?

• Make code run only when a condition is true

• Make code repeat a fixed number of times

• Make code repeat infinitely

• Show images on the display

Which line of code will show a random number between 0 and 3 (including both these numbers) on the Micro:bit display?

• display.show(3)

• display.show(random.randint(3))

• display.show(random.randint(1,3))

• display.show(random.randint(0,3))

What does this code do?

• Scrolls “OK” across the display if the light level measured by the Micro:bit is more than 150.

• Scrolls “OK” across the display if the light level measured by the Micro:bit is less than 150.

• Scrolls “OK” across the display if the light level measured by the Micro:bit is exactly 150.

• Scrolls “OK” across the display whatever the light level measured by the Micro:bit is.

What does this program do?

• Shows a checkmark (YES) when the A button is being pressed and nothing when it is not.

• Shows a checkmark (YES) when the A button is being pressed and an X (NO) when it is not.

• Shows a checkmark (YES) when the A button is being pressed and an X (NO) when the B button is being pressed.

• Shows a checkmark (YES) when the A button is first pressed and keeps it there forever.