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Quiz: Drawing with Turtle Graphics

Test your understanding of turtle graphics commands, pen control, and screen setup with these questions. Click "Show Answer" to reveal the correct answer and explanation.

1. What does turtle.Screen() create in a turtle program?

  1. The turtle drawing agent that moves around and draws lines
  2. The drawing window where all your shapes will appear
  3. The color of the background behind the turtle
  4. A list of all available turtle commands
Show Answer

The correct answer is B. turtle.Screen() creates the drawing window — the blank canvas where your turtle will draw. Think of it as the stage in a play: you set it up before the actors perform. You store it in a variable (commonly wn for "window") so you can give it instructions like changing the background color.

Concept Tested: turtle.Screen() Object

2. Which command moves the turtle forward 100 pixels in the direction it is facing?

  1. t.move(100)
  2. t.go(100)
  3. t.forward(100)
  4. t.walk(100)
Show Answer

The correct answer is C. t.forward(100) tells the turtle to walk forward 100 pixels in whatever direction it is currently facing while drawing a line. The turtle starts facing right (East). The other options — move(), go(), and walk() — are not valid turtle methods and would cause an AttributeError.

Concept Tested: Turtle Movement Commands

3. The turtle always starts at the center of the screen facing which direction?

  1. North (up)
  2. South (down)
  3. West (left)
  4. East (right)
Show Answer

The correct answer is D. When you create a new turtle.Turtle(), it starts at the center of the screen facing East (right). The first t.forward(100) will therefore draw a line pointing to the right. You use t.right() and t.left() to change the direction it faces before moving.

Concept Tested: Turtle Movement Commands

4. What does t.penup() do?

  1. Makes the turtle move faster
  2. Changes the pen color to white
  3. Lifts the pen so the turtle can move without drawing a line
  4. Erases the most recent line the turtle drew
Show Answer

The correct answer is C. t.penup() lifts the virtual pen off the canvas, so the turtle can travel to a new position without leaving a mark. This is how you create gaps in a drawing. After moving to the new position, call t.pendown() to lower the pen again so future movements draw lines.

Concept Tested: penup() and pendown()

5. A student runs this code and sees nothing drawn on the canvas. What is most likely wrong?

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import turtle
t = turtle.Turtle()
t.penup()
t.forward(100)
t.forward(100)
  1. forward() does not work after penup()
  2. The turtle needs a Screen() before it can move
  3. The student forgot to call t.pendown() before drawing
  4. You must import turtle twice to draw two lines
Show Answer

The correct answer is C. The student called t.penup() but never called t.pendown(). The turtle moves exactly where commanded — but with the pen up, it leaves no trace on the canvas. Adding t.pendown() before the second forward() (or between them, depending on where the gap should be) would fix the problem.

Concept Tested: penup() and pendown()

6. Which command sets the background color of the turtle window to light blue?

  1. t.bgcolor("lightblue")
  2. wn.bgcolor("lightblue")
  3. t.pencolor("lightblue")
  4. turtle.background("lightblue")
Show Answer

The correct answer is B. bgcolor() is a method on the Screen object, not on the Turtle object. You call it as wn.bgcolor("lightblue") where wn is the variable holding your turtle.Screen(). The turtle's pencolor() method only changes the drawing pen's color, not the background.

Concept Tested: turtle.Screen() Object

7. What does t.pensize(5) do?

#### 7. What does t.pensize(5) do?

  1. Makes the turtle move 5 times faster
  2. Sets the thickness of the lines the turtle draws to 5 pixels
  3. Changes the turtle's shape to a size-5 circle
  4. Draws a square with sides 5 pixels long
Show Answer

The correct answer is B. t.pensize(5) sets the width (thickness) of the lines the turtle draws to 5 pixels. The default size is 1 pixel, which is quite thin. Increasing the pen size to 3, 5, or 10 creates bolder, more visible lines. It does not affect speed, shape, or the size of shapes drawn.

Concept Tested: Pen Size and Color

8. Which turtle command makes the turtle cursor invisible without erasing the drawing?

  1. t.erase()
  2. t.invisible()
  3. t.hideturtle()
  4. t.penup()
Show Answer

The correct answer is C. t.hideturtle() makes the turtle cursor invisible so it does not appear on your finished drawing. The drawing itself stays fully visible on screen. You can bring the turtle back with t.showturtle(). This is useful when you want to display a clean artwork without the arrow cursor on top of it.

Concept Tested: Turtle Appearance

9. How many degrees should the turtle turn to make a right-angle corner (like the corner of a square)?

  1. 45 degrees
  2. 90 degrees
  3. 180 degrees
  4. 360 degrees
Show Answer

The correct answer is B. A right-angle corner is 90 degrees — one quarter of a full 360-degree circle. To draw a square, you repeat forward() and right(90) four times. This is exactly like the geometry you learn in school: the corners of a square are all 90 degrees.

Concept Tested: Turtle Movement Commands

10. What does t.shape("turtle") do?

  1. Draws a turtle shape on the canvas in the turtle's current color
  2. Changes the appearance of the turtle cursor from an arrow to a cartoon turtle
  3. Creates a second turtle object named "turtle"
  4. Imports a picture of a turtle from the internet
Show Answer

The correct answer is B. t.shape("turtle") changes the appearance of the turtle cursor — the small icon that shows where the turtle is on the screen. Instead of the default arrowhead, it displays a top-down cartoon turtle. Six built-in shapes are available: "arrow", "turtle", "circle", "square", "triangle", and "classic".

Concept Tested: Turtle Appearance