APCSP1

Which of the following is not a valid condition to go in a while loop for Karel?

• facingNorth()

• frontIsBlocked()

• turnAround()

• noBallsPresent()

What is one way to create an abstraction in Karel coding?

• Use a while loop

• Use a for loop

• Create a function

• Use an if statement

Say you want to write a program that has Karel run to the other side of first street, jumping over all of the hurdles. Karel should only jump if there is a hurdle blocking the way. However, the hurdles can be in random locations. The world is fourteen avenues long. What is the best control structure to use?

• If statement

• While loop

• Nested while loop

• For loop

Super Karel starts at Street 2, Avenue 1, facing North in a 5 x 5 world. What will happen after this code above runs?

• Karel will end at Street 2 Avenue 3

• Karel will end at Street 3 Avenue 2

• A syntax error will occur

• Karel will run into a wall

Which of the following problem solving strategies breaks down different parts of a function into their own functions to make the code more readable?

• Indenting code

• Debugging code

• Top Down Design

• Loops

In the above code, what would be a good Postcondition to write?

• Karel is in the same spot

• Karel has moved up and over two spots and is facing South

• Karel has moved up and over two spots and is facing East

• Karel has moved up and over to spots to the right facing North

If you want to repeat something a fixed number of times, which of the following

would you use?

• If statement

• For loop

• While loop

• If/Else statement

Which of the following commands is a valid Karel command?

• turnLeft

• turnLeft;

• turnLeft();

• turnLeft()

What makes the following command an invalid Karel command?

takeball();

• It should end in a colon rather than a semicolon

• The b should be an uppercase B

• It should start with a capital T

• This command is correct

Why do we use functions in Karel programs?

• Break down our program into smaller parts

• Avoid repeating code

• Makes our program more readable

• All of the above