LO13_Lesson 5

What is iteration known as?

• Looping
• Crashing
• Repeating

Why is iteration important?

• It determines the order in which instructions are carried out
• It allows code to be simplified by removing duplicated steps
• It allows multiple paths through a program

Which of the following best describes the purpose of a for loop?

• A for loop is for doing something an indeterminate number of times.

• A for loop is doing something an infinite number of times.

• A for loop is for doing something a fixed number of times.

• A for loop is for doing something three times.

Which of the following best describes the while loop?

• A loop that always executes at least once, regardless of the condition.

• A loop that repeats a block of code as long as a specified condition is true.

• A loop that executes a specific number of times.

• A loop that is used exclusively for iterating over elements in a list.

What does the range() function do in a for loop?

• Creates a copy of the list

• Filters elements in a list

• Reverses the order of elements

• Generates a sequence of numbers

How many times does the following program print the word ‘computer’:

word= "computer"  
for num in range(1,6):  
    print(word)

• 5
• 6
• 1
• 0

Which of the following programs prints ten lines?

• for i in range(10):

  print("hi")

• for i = 1 to 10:

  print("hi")

• for i in 1 - 10:

  print("hi")

• for i from 0 to 9:

  print("hi")

The program above

• prints all the odd numbers between 1 and 20

• prints all even numbers between 1 and 20

• print all the odd numbers between 1 and 21

• prints all the even numbers between 1 and 21

What will be printed after running this FOR loop:

for number in range(6):  
    print(number)

• The number 6 
• The numbers 0 - 5
• The number 5
• The numbers 1 - 6

How many times the following loop will execute:

i = 1

while True:

print(i)

i += 2

• 0

• 2,4,6,8,..................

• 1,3,5,7,9,.............

• 1,2,4,6,8......................