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Part of Variable Scope — GCSE Computer Science

This study notes covers Exam Tips within Variable Scope for GCSE Computer Science. Revise Variable Scope in Programming for GCSE Computer Science with 15 exam-style questions and 10 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 6 of 6 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 6 of 6

Practice

15 questions

Recall

10 flashcards

Exam Tips

  • Best practice: Use local variables when possible
  • Parameters: Are local to the function
  • Common mistake: Trying to access local variable outside its function
Unit 2.3: Robust Programs

Keep building this topic

Read this section alongside the surrounding pages in Variable Scope. That gives you the full topic sequence instead of a single isolated revision point.

Memory TrickVideo LessonWhere Variables Live

Practice Questions for Variable Scope

Where can a local variable be accessed?

  • A. Anywhere in the program
  • B. Only within the subprogram where it is declared
  • C. Only in the main program body
  • D. In any subprogram that calls the original subprogram
1 markfoundation

Identify and explain the scope error in this pseudocode: function calculateTotal(price, quantity) local total = price * quantity endfunction calculateTotal(10, 5) output total

2 marksstandard

Quick Recall Flashcards

What is a global variable?
A variable declared outside all subprograms, accessible anywhere in the program
What is variable scope?
Where a variable can be accessed in the code

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