Python for and while Loops

Question 1

What does this Python line display?
print(list(range(4)))

Accepted Answer

[0, 1, 2, 3]

Answer

[0, 1, 2, 3, 4]

Answer

[1, 2, 3, 4]

Answer

[4]

Question 2

What does this Python line display?
print(list(range(2, 10, 2)))

Accepted Answer

[2, 4, 6, 8]

Answer

[2, 4, 6, 8, 10]

Answer

[2, 3, 4, 5, 6, 7, 8, 9]

Answer

[0, 2, 4, 6, 8]

Question 3

What does this Python line display?
print(list(range(10, 3, -2)))

Accepted Answer

[10, 8, 6, 4]

Answer

[10, 8, 6, 4, 2]

Answer

[8, 6, 4]

Answer

[10, 9, 8, 7, 6, 5, 4]

Question 4

Choose the list made by this Python expression.
list(range(1, 8, 3))

Accepted Answer

[1, 4, 7]

Answer

[1, 4, 7, 10]

Answer

[1, 3, 5, 7]

Answer

[4, 7]

Question 5

What does this Python line display?
print(list(range(-2, 3)))

Accepted Answer

[-2, -1, 0, 1, 2]

Answer

[-2, -1, 0, 1, 2, 3]

Answer

[-1, 0, 1, 2, 3]

Answer

[-2, 0, 2]

Question 6

What does this Python line display?
print(list(range(5, -1, -2)))

Accepted Answer

[5, 3, 1]

Answer

[5, 3, 1, -1]

Answer

[5, 4, 3, 2, 1, 0]

Answer

[3, 1, -1]

Question 7

How many times does this loop run its body?
for i in range(5):
    print(i)

Accepted Answer

5

Answer

4

Answer

6

Answer

0

Question 8

How many lines does this program display?
for i in range(3, 9):
    print(i)

Accepted Answer

6

Answer

5

Answer

7

Answer

9

Question 9

How many times does the print statement run?
for i in range(2, 14, 3):
    print(i)

Accepted Answer

4

Answer

3

Answer

5

Answer

12

Question 10

How many lines does this program display?
for i in range(10, 4, -1):
    print(i)

Accepted Answer

6

Answer

5

Answer

4

Answer

10

Question 11

How many times does this loop run?
for i in range(-3, 4, 2):
    print(i)

Accepted Answer

4

Answer

3

Answer

5

Answer

7

Question 12

How many lines does this program display?
for i in range(1, 10, 4):
    print(i)

Accepted Answer

3

Answer

2

Answer

4

Answer

9

Question 13

What does this program display, in order?
for i in range(1, 4):
    print(i * 2)

Accepted Answer

2, then 4, then 6

Answer

1, then 2, then 3

Answer

2, then 4, then 6, then 8

Answer

0, then 2, then 4

Question 14

What does this program display, in order?
for i in range(3):
    print(i + 5)

Accepted Answer

5, then 6, then 7

Answer

6, then 7, then 8

Answer

5, then 6, then 7, then 8

Answer

3, then 4, then 5

Question 15

What does this program display, in order?
for i in range(2, 6):
    print(i * i)

Accepted Answer

4, then 9, then 16, then 25

Answer

4, then 9, then 16, then 25, then 36

Answer

2, then 3, then 4, then 5

Answer

1, then 4, then 9, then 16

Question 16

What does this program display, in order?
for i in range(5, 0, -2):
    print(i)

Accepted Answer

5, then 3, then 1

Answer

5, then 3, then 1, then -1

Answer

4, then 2, then 0

Answer

5, then 4, then 3, then 2, then 1

Question 17

What does this program display?
for i in range(1, 5):
    print("#" * i)

Accepted Answer

#, then ##, then ###, then #### on separate lines

Answer

#, then ##, then ### on separate lines

Answer

##, then ###, then ####, then ##### on separate lines

Answer

#### on one line

Question 18

What does this program display, in order?
for i in range(0, 7, 3):
    print(i - 1)

Accepted Answer

-1, then 2, then 5

Answer

0, then 3, then 6

Answer

-1, then 2, then 5, then 8

Answer

1, then 4, then 7

Question 19

What does this program display?
total = 0
count = 1
while count <= 4:
    total = total + count
    count = count + 1
print(total)

Accepted Answer

10

Answer

6

Answer

15

Answer

4

Question 20

What does this program display?
total = 5
number = 2
while number <= 5:
    total = total + number
    number = number + 1
print(total)

Accepted Answer

19

Answer

14

Answer

20

Answer

10

Question 21

What does this program display?
total = 0
count = 4
while count > 0:
    total = total + count
    count = count - 1
print(total)

Accepted Answer

10

Answer

4

Answer

6

Answer

15

Question 22

What does this program display?
total = 0
number = 1
while number <= 3:
    total = total + number * 2
    number = number + 1
print(total)

Accepted Answer

12

Answer

6

Answer

8

Answer

14

Question 23

What does this program display?
total = 10
number = 0
while number < 4:
    total = total + number
    number = number + 1
print(total)

Accepted Answer

16

Answer

13

Answer

20

Answer

10

Question 24

What does this program display?
total = 0
number = 5
while number >= 2:
    total = total + number
    number = number - 2
print(total)

Accepted Answer

8

Answer

10

Answer

9

Answer

5

Question 25

This program keeps printing "Go" until it is stopped. Why?
count = 0
while count < 5:
    print("Go")

Accepted Answer

Nothing inside the loop changes count.

Answer

The condition should use count <= 5.

Answer

A print statement cannot be inside a while loop.

Answer

count cannot start at 0.

Question 26

Why does this Python loop never stop?
ready = True
while ready:
    print("Working")

Accepted Answer

The value of ready never changes to False.

Answer

A while condition cannot use a Boolean value.

Answer

print() makes every loop repeat forever.

Answer

True must be written as "True".

Question 27

This loop never reaches its stopping condition. What is the problem?
number = 4
while number > 0:
    print(number)
    number = number + 1

Accepted Answer

number increases, so it stays greater than 0.

Answer

number should begin at 0.

Answer

The print statement must come after the update.

Answer

The condition should use number >= 0.

Question 28

What does this program display?
word = "go"
for letter in word:
    print(letter)

Accepted Answer

g, then o on separate lines

Answer

go on one line

Answer

0, then 1 on separate lines

Answer

G, then O on separate lines

Question 29

What does this program display?
word = "Hi"
for letter in word:
    print(letter.lower())

Accepted Answer

h, then i on separate lines

Answer

H, then I on separate lines

Answer

Hi on one line

Answer

hI on one line

Question 30

What does this program display?
word = "sun"
for letter in word:
    print("*" + letter)

Accepted Answer

*s, then *u, then *n on separate lines

Answer

s, then u, then n on separate lines

Answer

*sun on one line

Answer

*s, then *u, then *n, then * on separate lines

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Python for and while Loops

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Blast Go

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Cave Climb

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Tour Guide

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Alien Blast

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Board Games: Teacher-led, projected to the class

Like what you see?

Bug Blast

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Seek & Destroy

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Da Bomb

Castle Siege

Hot Potato

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King of the Hill

Bank Heist

Top Corner

Python for and while Loops

Ways to Play

Device Games: Students play on their phones

Blast Go

Zombie Escape

Avalanche

Maze Blast

Cave Climb

Blast Out

Mystery Auction

Tour Guide

Food Truck Rush

Tug of War

Alien Blast

Glacier Rush

Board Games: Teacher-led, projected to the class

Like what you see?

More like this

Bug Blast

BlastRace

BlastQuiz

BlastBoard

Seek & Destroy

Mystery Blast

Checkers

Texas Hold 'Em

Da Bomb

Castle Siege

Hot Potato

Market Mayhem

King of the Hill

Bank Heist

Top Corner