AP CSP U3: Intro to Programming

Which of the following commands will move the turtle forward one unit?

• move
• move;
• move();
• move()

What makes the following command invalid: turnleft();

• It should end in a colon rather than a semicolon
• The letter l should be capitalized - L
• It should start with a capital T
• The command is correct

Why do we use functions in programs?

• A.  Make the program easier to read
• B.  Avoid retyping the same lines of code
• C.  Both A and B are correct
• D. Neither A nor B are correct

In this code, how many times is the "dance" function called and how many times is it defined?

• called 1 time, defined 1 time
• called 1 time, defined 3 times
• called 3 times, defined 1 time
• called 3 times, defined 3 times

What is wrong with this program?

• The "go" function is called twice
• The "go" function has a syntax error
• The "go" function has been defined twice
• "go" is not a command that 

What is the proper format for a single line comment?

• THIS IS A COMMENT
• // This is a comment
• /* This is a comment
• This is a comment

Multiple functions within a program can have the same name

• True
• False

Two different functions in a program could contain the same code (accomplish the same task)

• True
• False

Which of the following is NOT true about functions in programming?

• Functions are reusable programming abstractions. 
• Functions help break a problem into logical chunks. 
• Functions help reduce the complexity of writing and maintaining programs. 
• Functions cannot make calls to other functions within the same program. 

Which of the following is true regarding naming functions? 

• Function names can be reused multiple times
• A function name should be as descriptive as possible to indicate what the function does.
• Function names should be organized alphabetically
• The function name should begin with a number that indicates the order in which it should be executed.