Python Revision

What is the purpose of variables in a program?

• To store data that can be used and changed later

• To make the program run faster

• To display output on the screen

• To store only numbers

Identify the variables and their data types in the following Python code: name = "Alice" age = 25 is_student = True

How do you declare and assign a value to a variable in Python? Provide an example.

• var x = 10

• int x = 10

• x = 10

• declare x = 10

What will be the output of the following code? x = 5 y = "5" print(x + y)

• 10

• 55

• TypeError

• 5 + 5

How can you receive user input in Python? Provide an example.

Explain why variable naming conventions are important in Python.

Write a program that asks the user for their age and then prints whether they are an adult (18 or older) or a minor.

Modify the following code to ensure the user inputs a number, not a string: age = input("Enter your age: ") print("In 10 years, you will be", age + 10)

How would you use variables and input to create a program that calculates the area of a rectangle?

What is the syntax of a while loop in Python? Provide an example.