Python and Karel Programming Quiz (50 minutes)

What are the three components of a variable?

• A. Name, value, and size

• B. Name, type, and value

• C. Type, size, and value

• D. Name, size, and memory location

Which of the following is a valid variable name in Python?

• 1st_variable

• my-variable

• my_variable

• my variable

What is the data type of the variable greeting = "Hello, world!"?

• int

• float

• str

• bool

What Python function can you use to determine the type of a variable?

• findtype()

• type()

• get_type()

• variable_type()

What is the data type of the variable my_number = 50?

• A. int

• B. float

Which Karel command is used to pick up a tennis ball?

• collect_ball()

• pick_ball()

• get_ball()

• take_ball()

What will happen if Karel tries to pick up a ball when there are no balls present?

• Nothing happens

• Karel will crash

• Karel will automatically place a ball instead

• Karel will move forward

How do you make Karel turn right in a standard Karel program?

• turn_right()

• right()

• You must use three left turns

• Both A and C are correct depending on your implementation

Which of the following is a valid Karel conditional?

• is_front_clear()

• front_is_clear()

• clear_is_front()

• is_clear_front()

What will the following code do if there is a ball at Karel's current position?

• Always pick up a ball

• Always put down a ball

• Pick up a ball if one is present, otherwise put down a ball

• The code has a syntax error