2.1-2.10 Review

Which of these is a valid Karel command?

• move()

• move();

• MOVE

• move;

What is a street in Karel world?

• A column

• Karel's position

• A row

• A single point

What is an avenue in a Karel world?

• A single point

• A row

• A column

• Karel's position

If Karel starts at Street 1 and Avenue 3 facing East, what street (row) and avenue (column) will Karel be on after this code runs?

move();

move();

move();

turnLeft();

move();

• Street 4 and Avenue 4

• Street 2 and Avenue 6

• Street 6 and Avenue 2

• Street 1 and Avenue 3

If Karel is facing North and the code runs, which direction is Karel facing now?

turnLeft();

turnLeft();

• North

• South

• East

• West

How many times should Karel turn left in order to turn right?

• 1

• 2

• 3

• 4

What can be used to teach Karel to turn right?

• Karel can already turn right

• Functions

• Variables

• Dog treats

Which function will teach Karel how to spin in a circle one time?

• function spin() { turnRight(); }

• function spin() { turnLeft();

  turnLeft();

  turnLeft();

  turnLeft(); }

• function spin() { move();

  move();

  move();

  move(); }

• function spin() { turnLeft();

  turnLeft(); }

How many times should the start function be defined in a program?

• 0

• 1

• 2

• However many you like

How many times should you call the start function when writing your program?

• 0

• 1

• 2

• However many times you like