Understanding Scratch in Pac-Man Game

What is a variable in Scratch?

• A type of sprite that moves around the screen

• A block that controls sound effects

• A way to store and change values like score or player lives

• A command to start the game

Which of these is an example of selection in Scratch?

• Pac-Man moves left when the left arrow key is pressed

• A loop that repeats forever

• Checking if Pac-Man touches a ghost and losing a life if true

• Storing the highest score in a variable

How is iteration used in Scratch?

• Running a loop multiple times, such as making the ghosts move continuously

• Checking if a condition is met before running a script

• Storing data like the player’s score

• Changing the colour of a sprite

Why is decomposition important when making a game like Pac-Man?

• It makes the game run faster

• It breaks the game into smaller parts, like programming Pac-Man’s movement separately from the ghosts

• It allows the game to be played on different devices

• It helps create more animations

Which statement best describes abstraction in Scratch?

• Ignoring unnecessary details to simplify the game, like using a block to move Pac-Man instead of coding every step

• Repeating a set of instructions forever

• Storing numbers in a variable

• Checking if Pac-Man has collected all the dots

What is an algorithm in Scratch?

• A character in the game

• A step-by-step plan or set of instructions for solving a problem

• A special variable that tracks time

• A block that plays sounds

Which of the following is an example of a variable in a Pac-Man game?

• The background of the maze

• The "Score" value that increases when Pac-Man eats a dot

• The colour of the ghosts

• The "forever" loop that moves Pac-Man

How does selection help make a game more interactive?

• It allows sprites to choose between different actions, such as making Pac-Man lose a life if he touches a ghost

• It repeats a loop a certain number of times

• It makes characters move at a set speed

• It changes the game’s background

Which of the following is an example of iteration in a Scratch game?

• The ghosts continue to move around the maze using a "forever" loop

• The game ends when the player loses all lives

• The score increases when Pac-Man eats a dot

• The player controls Pac-Man with the arrow keys

Why do programmers use decomposition when making games?

• To make the game code shorter

• To separate the game into smaller, easier-to-manage parts, like movement, scoring, and ghost AI

• To make the game harder to understand

• To change the colour of the sprites