Adv CS I_Python_Intro to Programming

What is wrong with this for loop?

for i in range = 5;

move()

A. The for loop uses a semicolon(;) instead of colon(:)

B. It should say range(5) instead of range = 5

• A

• B

• A and B

• The for loop is correct

What is the proper format for a single line comment in Karel?

• // This is a comment

• # This is a comment

• /* This is a comment

• This is a comment

What does the mystery function do?

def mystery():

while no_balls_present():

move()

• Karel moves until it puts down a ball

• Karel moves once if there is no ball present

• Karel moves until it is on a ball

• Karel checks if there is no ball on the current spot and then moves once

Which of the following is not a valid condition to go in an if statement for Karel?

• balls_present()

• front_is_clear()

• left_is_blocked()

• turn_left()

What condition should be used in this while loop to get Karel to pick up all the tennis balls on the current location?

while ________ :

take_ball()

• take_ball()

• front_is_clear()

• balls_present()

• no_balls_present()

How can we teach Karel new commands?

• For loop

• While loop

• The main function

• Define a new function

Super Karel starts at Street 1, Avenue 1, facing East in a 5x5 world. What will happen after this code runs?

move()

move()

turn_right()

move()

• Karel ends on street 1, avenue 3

• Karel ends on street 2, avenue 3

• This code won’t run because of a syntax error

• Karel will crash into a wall

What makes the following command an invalid Karel command?

• It should end in semicolon

• It should start with a capital T

• This command is correct

• The L should be a lower l