8/22-7th: Tracy's World Quiz Sec. 1

How big is Tracy's world?

• 400 x 400 pixels

• 200 x 200 pixels

• 100 x 100 pixels

• 800 x 800 pixels

Which command would make Tracy face straight up?

(Select ALL that apply)

• face(up)

• left(90)

• right(270)

• turn left 90 degrees

How would you tell Tracy to move forward 75 pixels?

• forward 75

• mover forward 75

• forward(75)

• moveforward(75)

When using the circle( ) command, what do we put in the parenthesis?

• the diameter of the circle

• which direction you want Tracy to turn

• the center of the circle

• the radius of the circle

When Tracy is facing right, from what location does she start drawing her circle?

• the bottom of the circle

• the top of the circle

• the left side of the circle

• the center of the circle

What are Tracy's coordinates when you first start a program?

• (400,400)

• (0,0)

• (100,100)

• (50,50)

If you start a program with the following command:

forward(300)

what will happen to Tracy?

• You will get an ERROR message

• Tracy will move off the grid to the right

• Tracy will move to the edge of the grid on the right and stop

• Tracy will not move

Which command(s) would move Tracy forward 50 pixels?

A. forward(50)

B. backward(-50)

C. forward(-50)

• A only

• B & C only

• A & B only

• A & C only

Which set of commands would make Tracy move backwards 50 pixels without making a line?

• backward()

  penup(50)

• left(180)

  penup(50)

• nopen()

  backward(50)

• penup()

  backward(50)

What would the following commands make Tracy do?

circle(100)

penup()

forward(200)

circle(100)

• draw 2 circles 200 pixels apart

• draw 2 circles side by side

• draw 2 overlapping circles

• draw 2 circles 100 pixels apart