Intro To Computer Science Quiz #3

Which of the following are the basic drawing commands?

• A.

  SetPenWidth(); forward(); backward(); right();

• B.

  Forward(); backward(); setHeading(); setPostion();

• C.

  Forward(); backward(); left(); right();

• D.

  SetPenColor(); backward(); right(); forward();

What does the following code create:forward(50);right(90);forward(100);right(90);forward(50);right(90);forward(100);

Create the code for making a circle. You must use one of the loop codes.

PenUp();forward(100);right(90);forward(50);right(90);forward(100);right(90);forward(50)

• A.

  A rectangle

• B.

  A square

• C.

  Some lines

• D.

  Nothing

What comes at the end of a statement?

• A.

  Semi-colon

• B.

  Colon

• C.

  Curly brace

• D.

  Parentheses

Write the code for making a triangle. You do not need to worry about the angles. Just type in the basic drawing commands.

What is missing from the following code?for int i=0; i<45; i++{forward(20);left(45);}

Which of the following is correct?

• A.

  SetpenColor(Color.blue)

• B.

  SetDisplay(Color.orange);

• C.

  SetDisplayColor(blue);

• D.

  SetPenColor(Color.pink);

What will happen?The turtle starts at it's original position. A setPosition command is used and nothing else. 

• A.

  The turtle will do nothing

• B.

  The turtle will move to the new position

• C.

  The turtle will draw a line to the new position

Explain what the following code will do.int h=0;while(h<10){ for(int i=0; i<4; i++) { forward(50); right(90); } h++;}

What will happen?for(int i=0; i<4; i++) { forward(50); right(90); }setDisplayColor(Color.blue);

• A.

  You will see a square with blue background.

• B.

  You will see four squares on a blue background.

• C.

  You will only see a blue background.

• D.

  Nothing will happen.