_{S3 Computing}Conditional Loops Worksheet

Describe each program

Copy the code and add a comment at the top describing what it does.

Program 1

x = 0

while x < 100:
  print(x)
  x = x + 2

Program 2

x = input()
y = 3

while y < x:
  print(y + 3)
  y = y + 1<

Program 3

while number != 53:
  print("Try again")

Write the code

Write Python programs for each of the following:

1. Write a program that takes in a name and prints it 100 times to the display.
2. Ask the user for a number. Keep looping until they enter a number greater than 50.
3. Ask the user for a password. Keep looping until they enter "letmein"
4. Write a program that takes in a number from the user and loops to that number.
5. Write a program that asks the user a question (such as "What is the capital of France?") and loops until the user gives the correct answer.
6. Write a login program that asks the user for their username and password. If the user gets their information wrong, then it asks again.
7. Write a program that loops from 0 to 100, adding each number to the previous number (e.g. 2 + 3, 3 + 4, 4 + 5) and prints it to the display.
8. Write a program that asks the user to enter a number until the number entered is less than 0. Until then, the program should add all other numbers up.