CodeHS Lessons 1-5

Which is a valid Karel command?

• move();

• move

• move()

• MOVE

In the Karel world, a street is a row.

• True

• False

In the Karel world, a column is an avenue.

• True

• False

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 1 Avenue 3

• Street 3 Avenue 1

• Street 6 Avenue 2

• Street 2 Avenue 6

If Karel is facing North and the code

turnLeft();

turnLeft();

runs; which direction is Karel facing now?

• West

• East

• South

• North

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

• 4

• 3

• 2

• 1

Which of the following will teach Karel how to spin in a circle one time?

• private void spin()

  {

  move();

  move();

  move();

  move();

  }

• private void spin()

  {

  turnLeft();

  turnLeft();

  }

• private void spin()

  {

  turnLeft();

  turnLeft();

  turnLeft();

  turnLeft();

  }

• private void spin()

  {

  turnRight();

  }

Giving commands to a computer is known as computer programming.

• True

• False

Every command ends in

• {}

• ()

• (),

• ();

Which of the following is correct?

• PutBall():

• putBall();

• putball();

• Putball();