02. Control Flow with Decisions and Loops 1

Question 1

Explain what will happen with the following code example.

annualSales = 300000
if annualSales >= 500000:
print(“Gold Customer”)
print(“Thank you for your business”)

Answer 1

1. The if statement will evaluate to False and skip the indented code.
2. The final print statement will be displayed onscreen.

Question 2

When using if statements and wish to check for several conditions, what statement is required?

Answer 2

1. The elif statement. This is short for else if.

Question 3

Does order matter when using if and elif statements?

Answer 3

TBC

Question 4

Explain what purpose an else statement serves when using if statements.

Answer 4

1. The else statement is known as the “If all else fails option”.
2. It will execute if no if or elif statement is True

Question 5

Explain what a nested if statement is?

Answer 5

It is an if statement inside of another if statement.

Question 6

What is the variable type and value of newCustomer in line 8?

Answer 6

1. It is a Boolean variable with a value of True
2. Referring to a variable by itself is the same as giving it a Boolean value of True.

Question 7

In simple terms, what does a for loop do?

Answer 7

A for loop is set to run a certain number of times.

Question 8

How many times will this for loop run for?

for monthlyGoal in range(12):
print(“Good job!”)

Answer 8

12 times

Question 9

Coding exercise:

1. Write a program to ask a user “What is the capital of Ireland?”
2. If the user guesses incorrectly three times, the program exits.
3. Print a statement if the user guesses correctly.
4. Use a while loop, if statement and break statement to complete the exercise.

Answer 9

Note: The indentation may not be 100% correct.

answer = str(input('What is the capital of Ireland? ')).lower()
guesses = 1

while answer != ‘dublin’:
guesses +=1
if guesses > 3:
print(“You guessed incorrectly three times. Game over!”)
break
answer = str(input(‘Guess again: ‘)).lower()

if guesses <=3:
print(‘That is correct’)

Question 10

Why might you use a continue statement in a for loop?

Answer 10

It is possible that you may wish to skip a certain iteration if a condition is met.

Question 11

What is the pass keyword used for?

Answer 11

Think of the pass keyword as a placeholder.