Turtle Graphics and Fractal Patterns

The video introduces turtle graphics, a method for drawing shapes using simple commands. It starts with basic commands to draw a square and progresses to creating spirals, including Euler spirals. The video then explores the Sierpinski triangle using a substitution system, demonstrating how to create complex fractals. Finally, it touches on advanced turtle programs using the digits of pi.

What is the primary function of the 'pen down' command in turtle graphics?

• To stop the turtle from moving

• To change the turtle's color

• To draw a line as the turtle moves

• To erase the previous line

What shape is created by the turtle when it follows the sequence: forward 1, turn 90 degrees, four times?

• Circle

• Triangle

• Square

• Pentagon

What happens when the turtle turns 1 degree, 2 degrees, 3 degrees, and so on, in a sequence?

• It creates a zigzag pattern

• It draws a straight line

• It forms a square

• It spirals into the center

How does changing the angle slightly, such as from 1 degree to 1.02 degrees, affect the turtle's path?

• It slows down the drawing

• It speeds up the drawing

• It creates a completely different pattern

• It makes no difference

What is the purpose of using Python code in turtle graphics?

• To change the turtle's color

• To manually draw each line

• To automate the drawing process

• To erase mistakes

What is the Arrowhead Curve also known as?

• Sierpinski Triangle

• Cornu Spiral

• Fractal Curve

• Euler Spiral

In the substitution system for the Arrowhead Curve, what does the '+' symbol represent?

• Turn left 60 degrees

• Turn right 60 degrees

• Move forward

• Move backward

What is the result of applying the substitution rules multiple times in the Arrowhead Curve?

• A straight line

• A detailed fractal pattern

• A simple triangle

• A random shape

What is the significance of the vertical axis reflection in the Sierpinski triangle drawing?

• It creates a mirror image

• It doubles the size of the pattern

• It completes the pattern

• It erases the previous pattern

What new concept is introduced at the end of the video?

• Using Fibonacci sequence

• Using prime numbers

• Using the digits of pi

• Using random numbers