Intro to CS-Python Unit 2 Quiz 1

How would I tell Tracy to move backward 100 pixels?

• backward 100

• backward(-100)

• backward(100)

• forward(100)

Which command draws a circle with a diameter of 100?

• circle(50)

• circle(100)

• circle 50

• circle 100

Where does Tracy start in the grid world?

• Left side of the grid

• Upper left corner

• Bottom left corner

• In the center of the grid

Which direction does Tracy face when starting out?

• North

• South

• East

• West

If you want Tracy to move to the left most coordinate(-200,0), then move forward 50, then draw a circle of radius 25, what set of commands should you write?

• penup()

  backward(200)

  forward(50)

  circle(25)

• penup()

  backward(200)

  pendown()

  forward(50)

  circle(25)

• backward(200)

  penup()

  forward(50)

  circle(25)

• penup()

  backward(200)

  pendown()

  forward(50)

  circle(50)

If Tracy is facing up, which of the following commands can be used to turn her to face right?

• left(90)

  left(90)

  left(90)

• right()

• right(-90)

• setposition(90)

The following loop draws 4 circles on the screen. If we wanted to alter this loop to draw 8 circles, how many lines of code would we need?

for i in range(4):

circle(25)

forward(50)

• 1 line

• 3 lines

• 8 lines

• 12 lines

If Tracy starts at the left edge of the canvas and moves forward 25 pixels, how many times will the code need to be repeated to have Tracy reach the right edge of the canvas?

• 4 times

• 8 times

• 16 times

• 32 times

Which lines of the code below will be repeated 3 times?

• 2,3,4,5,6

• 3,4,5,6

• 1,2,7

Look at this code, what shape will it make?

• Square

• Triangle

• Hexagon

• Rectangle