3.2.2 Programming concepts

• What do variable types determine in programming?

  The kind of data stored
• A float variable type is used for storing numbers with decimal places.


  True
• A boolean variable can store either true or false
• An integer variable can store numbers with decimals.

  False
• Text in programming is stored in a variable type called a string
• Order the following variable types from least to most storage capacity:

  1️⃣ Boolean

  2️⃣ Character

  3️⃣ Integer

  4️⃣ Float

  5️⃣ String
• What are data structures used for in programming?

  Organizing and storing data
• What is a key feature of a list data structure?

  It is mutable
• Match the data structure with its example:

  Array ↔️ [1, 2, 3, 4, 5]

  List ↔️ ['apple', 2, 'banana']

  Tuple ↔️ (1, 2, 3)

  Set ↔️ {1, 2, 3, 4}

  Dictionary ↔️ {'name': 'Alice', 'age': 30}
• What type of elements can a list store?

  Different types
• Match the variable type with its description:

  Integer ↔️ Whole numbers

  Float ↔️ Numbers with decimals

  String ↔️ Text enclosed in quotes

  Boolean ↔️ Logical values

  Character ↔️ Single text character
• What are data structures used for in programming?

  Organizing and storing data
• What is a key feature of a list data structure?

  It is mutable
• Match the data structure with its description:

  Array ↔️ Collection of elements of the same type

  List ↔️ Ordered and mutable collection

  Tuple ↔️ Ordered and immutable collection

  Set ↔️ Unordered collection of unique elements

  Dictionary ↔️ Collection of key-value pairs
• An integer variable type is used for storing whole numbers
• What type of data is stored in a string variable?

  Text
• Match the variable type with its description:

  Integer ↔️ Whole numbers

  Float ↔️ Numbers with decimals

  String ↔️ Text enclosed in quotes

  Boolean ↔️ Logical values

  Character ↔️ Single text character
• What is an example of a float value?

  3.14
• A character variable stores single text characters.


  True
• An array is a collection of elements of the same type
• A set is an unordered collection of unique
• Arrays have a fixed size in memory.


  True
• Tuples are used to represent coordinates because they are immutable
• Why is understanding variable types crucial in programming?

  Store and manipulate data
• An array is a collection of elements of the same type
• A set is an unordered collection of unique
• Arrays have a fixed size in memory.

  True
• Tuples are used to represent coordinates because they are immutable
• The if-else statement allows the program to execute different code blocks based on a condition
• What does a for loop execute code a fixed number of times?

  Yes
• Order the execution of a while loop:

  1️⃣ Condition is checked

  2️⃣ Code block is executed

  3️⃣ Condition is checked again
• What is the input of an algorithm?

  The data the algorithm uses
• Control structures enable programs to make decisions and repeat actions
• The input of an algorithm is the data it takes as its starting point
• Functions encapsulate logic and break down complex problems into manageable pieces
• Match the function component with its description:

  Parameters ↔️ Inputs the function accepts

  Return value ↔️ Output the function produces
• The `greet()` function in the example returns a greeting message when called.


  True
• Match the variable type with its example:

  Integer ↔️ x = 10

  Float ↔️ pi = 3.14

  String ↔️ name = "Alice"

  Boolean ↔️ isValid = true

  Character ↔️ grade = 'A'
• What is the purpose of data structures in programming?

  Organize and store data
• What type of elements can a list store?

  Different types