Multiple Choice Questions on Python Iteration for High School Students

📚 Quick Study Guide

• 🔄 Iteration: The process of repeating a block of code.
• 🐍 `for` loops: Used to iterate over a sequence (like a list, tuple, string, or range). Example: `for i in range(5): print(i)`
• 🔢 `range()` function: Generates a sequence of numbers. `range(start, stop, step)`.
• ♾️ `while` loops: Used to repeat a block of code as long as a condition is true. Example: `i = 0; while i < 5: print(i); i += 1`
• 🛑 `break` statement: Exits the loop prematurely.
• ⏭️ `continue` statement: Skips the current iteration and proceeds to the next one.
• 📦 Iterables: Objects capable of returning their members one at a time (e.g., lists, tuples, strings).

Practice Quiz

1. What is the output of the following code?

   for i in range(2, 6):
       print(i)

   1. A) 0 1 2 3 4 5
   2. B) 2 3 4 5
   3. C) 2 3 4 5 6
   4. D) 1 2 3 4 5

2. Which loop is best suited for iterating through a list?

   1. A) `while` loop
   2. B) `if` statement
   3. C) `for` loop
   4. D) `else` statement

3. What does the `break` statement do in a loop?

   1. A) Skips to the next iteration
   2. B) Exits the loop entirely
   3. C) Prints a message
   4. D) Restarts the loop

4. What is the output of the following code?

   i = 0
   while i < 3:
       print(i)
       i += 1

   1. A) 1 2 3
   2. B) 0 1 2 3
   3. C) 0 1 2
   4. D) 1 2

5. What is an iterable?

   1. A) A variable that stores numbers
   2. B) An object that can be iterated over
   3. C) A function that prints output
   4. D) A conditional statement

6. What does `continue` do in a loop?

   1. A) Exits the loop
   2. B) Skips the rest of the current iteration
   3. C) Restarts the loop
   4. D) Prints an error message

7. What is the output of the following code?

   for i in range(5):
       if i == 3:
           break
       print(i)

   1. A) 0 1 2 3 4
   2. B) 0 1 2 3
   3. C) 0 1 2
   4. D) 3 4