Exploring Turtle Graphics in Python

Currently, the turtle is facing UP.

What direction will the turtle be facing after this block of code runs?

• up

• down

• left

• right

Answer explanation

The turtle starts facing UP. If the code includes a turn that changes its direction, it likely turns 180 degrees, which would make it face DOWN. Therefore, after the code runs, the turtle will be facing down.

What is the primary purpose of the Python Turtle module?

• To create 3D animations

• To draw graphics and shapes

• To manage databases

• To perform complex mathematical calculations

Answer explanation

The primary purpose of the Python Turtle module is to draw graphics and shapes. It provides a simple way to create visual representations using a turtle that moves around the screen, making it ideal for beginners in programming.

Which command is used to move the turtle forward by 100 units?

• `turtle.move(100)`

• `turtle.forward(100)`

• `turtle.go(100)`

• `turtle.walk(100)`

Answer explanation

The correct command to move the turtle forward by 100 units is `turtle.forward(100)`. The other options, such as `turtle.move(100)`, `turtle.go(100)`, and `turtle.walk(100)`, are not valid commands in the turtle graphics library.

How do you change the colour of the turtle's pen to blue?

• `turtle.pen_colour("blue")`

• `turtle.set_colour("blue")`

• `turtle.pencolor("blue")`

• `turtle.change_colour("blue")`

Answer explanation

The correct method to change the turtle's pen color to blue is `turtle.pencolor("blue")`. The other options do not exist in the turtle graphics library, making this the only valid choice.

Which command will turn the turtle 90 degrees to the right?

• `turtle.turn(90)`

• `turtle.right(90)`

• `turtle.rotate(90)`

• `turtle.spin(90)`

Answer explanation

The command `turtle.right(90)` correctly turns the turtle 90 degrees to the right. The other options, such as `turtle.turn(90)`, `turtle.rotate(90)`, and `turtle.spin(90)`, are not valid commands in the turtle graphics library.

What shape will the turtle draw with the following commands? ```python turtle.forward(100) turtle.right(90) turtle.forward(100) turtle.right(90) turtle.forward(100) turtle.right(90) turtle.forward(100) ```

• Triangle

• Square

• Circle

• Rectangle

Answer explanation

The turtle moves forward 100 units, turns right 90 degrees, and repeats this process four times. This creates four equal sides and four right angles, forming a square.

Which command is used to lift the pen so that the turtle moves without drawing?

• `turtle.penup()`

• `turtle.lift()`

• `turtle.nodraw()`

• `turtle.stop()`

Answer explanation

The command `turtle.penup()` is used to lift the pen, allowing the turtle to move without drawing. The other options do not perform this function.

How can you make the turtle draw a circle with a radius of 50 units?

• `turtle.circle(50)`

• `turtle.draw_circle(50)`

• `turtle.round(50)`

• `turtle.arc(50)`

Answer explanation

The correct choice is `turtle.circle(50)`, which is the proper method to draw a circle with a specified radius in the turtle graphics library. The other options are not valid turtle commands.

What is the default starting direction of the turtle when you begin a new drawing?

• North

• South

• East

• West

Answer explanation

The default starting direction of the turtle in most drawing environments is East. This means when you begin a new drawing, the turtle will face towards the right, which corresponds to the East direction.

Which command will reset the turtle's drawing and position?

• `turtle.clear()`

• `turtle.reset()`

• `turtle.home()`

• `turtle.restart()`

Answer explanation

The command `turtle.reset()` clears the turtle's drawings and resets its position to the starting point. Other options do not fully reset both the drawing and position, making `turtle.reset()` the correct choice.