Python Program

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

for i in range(5):

forward(10)

• 50

• 60

• 10

• 5

How many times can you call the function in your code?

• once

• depends on the function

• as many times as you want

• not more than once

1. In which of the following situations would it be best to make a function?

• You want Tracy to draw a blue line, and your program requires lots of blue lines.

• You need Tracy to move forward by 100.

• You need Tracy to turn right and then turn left.

• You need to change Tracy’s color.

1. Which of the following pieces of code will make Tracy do the following actions three times: go forward, change colors, and then turn around.

• for i in range(4):

  forward(30)

  color("blue")

  left(180)

• for i in range(3):

  forward(30)

  color("blue")

  left(180)

  color("red")

• for i in range(3):

  backward(30)

  color("blue")

  left(180)

• forward(30)

  color("blue")

  left(180)

  
  

  forward(30)

  color("green")

  left(180)

  
  

  forward(30)

  color("orange")

  left(180)

1. Suppose you want to make Tracy draw a mountain range, like the one shown below, starting from the left side.

Which of the following functions would be the most useful function to write in order to solve this problem?

• def make_triangle():

• def change_to_red():

• def move_100():

• def my_function():

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

• left

• backward

• turn

• color

Which of the statements below is true about indentation in Python?

• Indentation only matters in for loops.

• Indentation never matters in Python.

• Indentation always matters in Python.

• Indentation only matters in functions.

Which of the following statements are true about for loops?

A. By default, the range function starts at 0

B. Using for i in range(4) will result in i taking the values 0, 1, 2, 3, 4

C. For loops let you repeat something any number of times

D. Statements in a for loop do not need to be indented

E. It is not possible to have the range value count 6, 12, 18, 24

F. It is not possible to have the range values count 1, 2, 4, 8, 16

• A C F

• A and C

• A B C E F

• A B C F

Which of the following functions is declared correctly?

• def draw_edge():

  forward(100

  left(90)

• def draw_edge():forward(100)

  left(90)

• def draw_edge

  forward(100)

  left(90)

• def draw_edge(){

  forward(100)

  left(90)

  }

Which of the following is NOT a purpose of using functions?

• Functions let Tracy do new things.

• Functions help group statements together to make your code more readable.

• Functions let you execute code a fixed number of times.

• Functions allow the programmer to reuse code.