PLTW CSP - Apple Avalanche Quiz Multiple Choice

In the Apple Avalanche program, what type of object is active_apple at runtime?

• Screen

• Turtle

• GIF

• Shape

Which of the following best describes a list in Python?

• A single value that stores text

• An ordered sequence of elements

• A loop that repeats code

• A function parameter

Why is using a list of letters (A–Z) an example of data abstraction?

• It makes the program run faster

• It hides the image files

• It allows multiple related values to be treated as one unit

• It prevents errors from occurring

What does the index of a list represent?

• The value stored in the list

• The total number of elements

• The position of an element in the list

• The type of elements in the list

Which function allows the program to respond when a user presses a key?

• keypress()

• onkeypress()

• listen()

• write()

Why must wn.listen() be called in a program that uses key presses?

• To show images on the screen

• To clear the screen

• To allow the screen to detect keyboard events

• To move the turtle

What happens if penup() is NOT used before moving the apple?

• The apple will not move

• The apple will move faster

• The apple will draw a line as it moves

• The apple will disappear

Which of the following best explains why tracer(False) is used?

• To increase program speed

• To hide the turtle permanently

• To prevent unwanted drawing during movement

• To stop key presses

What is the purpose of randint() in the Apple Avalanche program?

• To repeat code

• To display letters

• To add randomness to positions or letter selection

• To detect key presses

Which construct is used to repeatedly check elements in a list?

• Selection

• Iteration

• Abstraction

• Compilation