Theory Questions

• What is the fundamental sequence in programming?

  Code runs from top to bottom.
• What does the term 'selection' refer to in programming?

  Making a decision or choice based on a Boolean expression.
• What is a Boolean expression?

  An expression that has to be true or false.
• What is iteration in programming?

  Repeating blocks of code.
• What are the two types of loops in iteration?

  For loops and while loops.
• What is a counter-controlled loop?

  A loop that repeats a specific number of times using a counter.
• How would you write a for loop that repeats code 10 times in Python?

  For i in range(10):
• What is a while loop?

  A loop that continues as long as a Boolean condition is true.
• What is a variable in programming?

  A storage location that can be changed.
• What is a constant in programming?

  A storage location that doesn't change.
• What is the value of Pi as a constant?

  Pi = 3.14
• What is a string in programming?

  Alphanumeric text enclosed in speech marks.
• What is an integer?

  A whole number.
• What is a float or real number?

  A decimal number.
• What does a Boolean represent?

  True or False.
• What is a char in programming?

  A single character.
• What is a syntax error?

  An error that occurs due to incorrect grammar or layout in code.
• What is a logic error?

  An error where the code runs but does not produce the expected output.
• What does 'mod' or 'modular' refer to in programming?

  Division where the remainder is returned.
• What is the result of $16 \mod 3$?


  $1$
• What is the symbol for mod in Python?

  %
• What does 'Div' refer to in programming?

  Division where the whole number is returned.
• What is the result of $16 \text{ Div } 3$?


  $5$
• What is the symbol for Div in Python?

  //
• What is a subroutine in programming?

  A module of code that can be reused.
• What are the benefits of using subroutines?

  They help break down problems and make code easier to maintain.
• What are the two types of subroutines?

  Functions and procedures.
• What does a function do?

  Returns a value.
• What does a procedure do?

  Does not return a value.
• What is data casting?

  Changing data types.
• What is concatenation?

  Joining multiple strings together.