Coding Loops Quiz

Which of the following is NOT a reason why loops are useful when writing code?

• Loops help us write the same program with fewer lines of code

• Loops let us make shapes of multiple sizes

• Loops make it easier to alter code once it's written

• Loops make our code easier to read

If Tracy starts at the left edge of the canvas and moves forward 8 pixels, how many times will this code need to be repeated to have Tracy reach the right edge of the canvas?

• 4 times

• 8 times

• 20 times

• 50 times

Which lines of the following code will be repeated 4 times?

for i in range(4):

     forward(50)

    left(90)

     circle(25)

• for i in range(4):

  forward(50)

• for i in range(4):

  forward(50)

  left(90)

• forward(50)

  left(90)

• forward(50)

      left(90)

       circle(25)

Why do certain words change color in Python?

• To show that they are recognized as keywords

• To tell you that these words cannot be used in Python code

• To show you that these words can be clicked

• To tell Python to skip these words when running the code

When the following for loop is complete, how many spaces will Tracy have moved?

for i in range(6):

    forward(10)

• 50 spaces

• 60 spaces

• 10 spaces

• 5 spaces

Which of the following pieces of code will make Tracy do the following actions three times: go forward, draw a circle, and then turn around?

• for i in range(4):

  forward(30)

  circle(10)

  left(180)

• for i in range(3):

  forward(30)

  circle(10)

  left(180)

•  for i in range(3):
  backward(30)
  circle(10)
  left(180)

Which of the following is NOT a command you can give to Tracy?

• circle

• turn

• backward

• left

The following loop draws 3 circles on the screen. If I wanted to alter this loop to draw 10 circles, how many lines would my code be?

for i in range(3):

    circle(50)

left(90)

forward(100)

• 10

• 1

• 4

• 40

What is the purpose of a 'for' loop in Python?

• To create a function

• To define a class

• To repeat a block of code a specified number of times

• To import modules

Which of the following is the correct syntax for a basic 'for' loop in Python?

• for (i = 0; i < 5; i++):

• for i in range(5):

• for i = 1 to 5:

• foreach (i in range(5)):