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✏️ Quiz: Understanding loops

Solve the quizzes below to check what you learned! 🎯

If you're not sure, read it again and give it a try! You've got this! 💪

Quiz 1: The loop keyword

Quiz: The loop keyword

What keyword starts a loop?
Hint: Enter the keyword you learned in this lesson.

Show Answer

Answer: for ✅

for starts a loop with this keyword! 🎬

for i in range(8):  # 🎬 The "start looping!" command
    print(i)        # 🏠 Code inside the room

for Next: - The variable name (i) 🧺 - the basket - in - the connecting word - the range to loop over (range(8)) 🏭 - the number factory

The code inside a loop must be indented! 🏠

Quiz 2: The range() function

Quiz: The range() function

range(5)which numbers does it make?

Show Answer

Answer: B) 0, 1, 2, 3, 4 ✅

range(5)makes 5 numbers from the number factory, starting at 0! 🏭

range(5)  # 🏭 0, 1, 2, 3, 4 (5 total)

In Python, we start counting from 0! (0-based indexing) range(n)makes the numbers from 0 to n-1!

range(5) → 0, 1, 2, 3, 4 (5 numbers)
range(8) → 0, 1, 2, 3, 4, 5, 6, 7 (8 numbers)

Quiz 3: Indentation

Quiz: indentation

How should the code inside a loop be written in Python?

Show Answer

Answer: A) It must be indented ✅

Indentation is very important in Python! The code inside a loop must always be indented! 🏠

# Correct way ✅
for i in range(3):
    print(i)      # 🏠 Inside the room, so it repeats

# Wrong way ❌
for i in range(3):
print(i)  # 🚪 Outside the room, so it errors!

If you don't indent, an error, IndentationErroroccurs! 😓

Remember: Only the code inside the loop's room repeats! 🏠

Quiz 4: Number of repetitions

Quiz: Number of repetitions

for i in range(8):how many times does it repeat?
Hint: Enter a number.

Show Answer

Answer: 8 ✅

range(8)makes 8 numbers from the number factory, 0 to 7, so the loop runs 8 times! 🏭🔄

for i in range(8):  # 🔄 Repeats 8 times
    print(i)        # 🧺 Prints 0, 1, 2, 3, 4, 5, 6, 7

range(n)repeats exactly n times!

range(3) → repeats 3 times (0, 1, 2)
range(5) → repeats 5 times (0, 1, 2, 3, 4)
range(8) → repeats 8 times (0, 1, 2, 3, 4, 5, 6, 7)

Next step

Congratulations! 🎊 You now understand loops!

You learned how to repeat the same code by spinning like a carousel! 🎠

In the next lesson: - You'll learn how to use a list to store many objects 📦 - You'll learn how to use lists and loops together 🔄

🎮 Try it yourself!

Experiment by changing the number in the number factory! 🏭

range(8)the range(10)or range(5)Try changing it to this and see what happens! When the number of repetitions changes, the number of cubes made changes too!

for i in range(10):  # 🏭 Change from 8 to 10
    Entity(...)      # 📦 Now 10 cubes are made!

Editing the code yourself and checking the results is the best way to learn! 💪

🧩 Reviewing the Object concept

An object is a LEGO blockLike this, it's an entity that has both properties and behaviors. 🧩
A variable is sticky note 🏷️, and functions are Instruction manual for behaviors, and an object is a toy that combines the two.
Ursina's Entity is an object too!
Properties: model, color, scale (settings decided at birth) 🎨
Behaviors: animate_position() (actions it can do later) 🎬
Putting objects into a list gives you a basketit becomes. 🗂️

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