Unit 5 Review

Which of the following for loops would print the following numbers?

0

1

2

3

4

5

• for i in range(5): print(i)

• for i in range(1, 5, 1): print(i)

• for i in range(6): print(i)

• for i in range(0, 5, 1): print(i)

i = 10

while i > 6:

# Code

Output:

10

9

8

• Continue

• Break

for i in range(3, 10, 3):

# code

Output:

3

• Break

• Continue

for i in range (3, 10, 3):

# code

Output:

3

9

• Break

• Continue 

for i in range(10):

# Code

Output:

0

1

2

• break

• continue

What is the value of num when this loop completes?

• 2

• 8

• 12

• 20

Three of the for loops below will provide identical values for i. Which for loop will provide values that do not match the others?

• for i in range(0, 5):

• for i in range(5):

• for i in range(0, 5, 1):

• for i in range(5, 0, 1):

Which of the following while loops will cause an infinite loop?

• secret_num = 10

  while secret_num == 10: secret_num = secret_num - 1

• secret_num = 10 while secret_num == 10: print(secret_num)

• secret_num = 10 while secret_num > 0:

  secret_num = secret_num - 1

• secret_num = 10 while secret_num != 10: print(secret_num)

When would a while loop be a better control structure to use than a for loop?

• When you need to repeat multiple commands

• When you need to repeat something 5 times

• When you don’t know how many times something will need to repeat

• When the user is inputting how many times to repeat something

What will be printed to the screen when this program is run?

• 0

  1

  0

  1

• 0

  2

• 0

  1

  0

  1

  0

  1

• 1

  2

  1

  2

  1

  2