CSE 3 Lesson 2.5: Check for Understanding

True or false? The Micro:Bit is a computer.

• False- it doesn't produce output.

• False- it doesn't process or store data.

• True- it takes input, processes and stores data, and provides output.

• False- it can't take inputs.

What will we see on the Micro:bit display when the following code is run? display.show(Image.HEART) sleep (1000) display.show(Image.HAPPY) sleep (1000) display.clear()

• A blank display and nothing else

• A heart, then a smiley face, then a blank display

• A smiley face, then a heart, then a blank display

• A heart with a smiley face on top of it

Which of these commands will create this image on the Micro:bit display?

• display.show(Image('90000:'

  '99900:'

  '00900:'

  '00999:'

  '00009'))

• display.show(Image('90000:

  09900:

  00000:

  00990:'

  00009'))

• display.show(Image('09999:

  '00099: '

  ¹99099: '

  ¹99000: '

  ¹99990'))

• display.show(Image('90000:¹ ¹09900: ¹00000: ¹00990:' ¹00009'))

Animation makes us think something is moving by...

• Distracting us with sounds and lights.

• Physically moving pixels around a display

• Showing images which are very different to one after another very slowly

• Showing images one after another very quickly

What does a while True loop do?

• Repeats the code in the loop 1 time.

• Stops the code in the loop from running at all.

• Repeats the code in the loop forever.

• Repeats the code in the loop a fixed number of times.