CodeHS Karel Review Section One

Why do we use functions in programming?

• Break down our program into smaller parts

• Avoid repeating code

• Make our program more readable

• All of the above

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

• 0

• 1

• 2

• However many you like

Which of these is a valid Karel command?

• move;

• MOVE

• move();

• move()

If Karel is facing South and the code:

turnLeft();

turnLeft();

runs; which direction is Karel facing now?

• North

• South

• East

• West

What is a code comment?

• A way to teach Karel a new word

• A way to give notes to the reader to explain what your code is doing

• A message to your teacher in code

• A place to write whatever you want in your code

Karel only knows 4 commands.

• True
• False

Which of the following is incorrect?

• putBall();
• Takeball();
• move();
• turnLeft();

Karel's world is made up of streets and ______

• Boulevards
• Alleys
• Avenues
• Dead Ends

Every command must end with {}

• True 
• False

Running the code is...

• when a computer completes a command
• Using the instructions the programmer has put in
• Both of the above