INQ241B
Mobile Apps

Review 1

A Miniature Practice Test

  1. What are variables useful for?

  2. Draw what the following script would draw when run.

    function main()
  var n := 0
  for 0 ≤ i < 4 do
    turtle→forward(50)
    turtle→left turn(n)
    n := n + 90
  end for
end function

  3. Draw what the following script would draw when run.

    function do something(
  a: Number)
do
  turtle→left turn(a)
  turtle→forward(100)
  turtle→right turn(a)
end function

function main()
  do something(90)
  turtle→forward(100)
  do something(45)
end function

  4. Create a script with a function called draw square with one parameter size. The function should draw a square with the side length specified by the parameter size.