Python Tracy the Turtle (codehs) through Lesson 9

Front

How will I tell Tracy to move forward 150 pixels?

Back

backward(-150)

Front

When using the circle() command, what value do we put inside the parentheses?

Back

Radius of the circle

Front

Where does Tracy always start in the grid world?

Back

(0, 0) coordinate in the middle of the canvas

Front

What are the dimensions of Tracy's world?

Back

400 pixels x 400 pixels

Front

Which command causes Tracy to move from the starting position to reach the right side of the canvas? Options: forward(-200), setposition(400,0), setposition(200,0), forward(400)

Back

setposition(200,0)

Front

If you want Tracy to draw a circle, move forward without making a line, and draw another circle (where the edges of the circle touch) what set of commands should you write?

Back

circle(30)
penup( )
forward(60)
pendown()
circle(30)

Front

If Tracy started facing right, which direction would she be facing after we ran the following code:
left(-90)
left(-90)
right(90)?

Back

up

Front

Which of the following is NOT a reason for loops being useful when writing code?
- Loops help use write the same program with fewer lines of code.
- Loops let us make shapes of multiple sizes
- Loops make it easier to alter code once it's written.
- Loops make our code easier to read

Back

Loops let us make shapes of multiple sizes

Front

If I wanted to alter this loop to draw 10 circles, how many lines would my code be?

Back

3 lines

Front

If Tracy starts on the left edge of the canvas and moves forward 100 pixels, which loop is the correct code to have Tracy reach the right edge of the canvas? Options: for i in range(8): forward(100), for i in range(4): forward(100), for i in range(1): forward(100), for i in range(1): forward(8)

Back

for i in range(4):
forward(100)