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AlgorithmsStudy Notes

Exam Tips

Part of Linear Search — GCSE Computer Science

This study notes covers Exam Tips within Linear Search for GCSE Computer Science. Revise Linear Search in Algorithms for GCSE Computer Science with 15 exam-style questions and 8 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 7 of 7 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 7 of 7

Practice

15 questions

Recall

8 flashcards

Exam Tips

  • Binary requirement: ALWAYS mention data must be sorted
  • Show your working: When tracing binary search, show the midpoint at each step
  • Common mistake: Saying binary is "always better" - linear works on unsorted data

Keep building this topic

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

Memory TrickVideo LessonFinding the Needle

Practice Questions for Linear Search

How does a linear search work?

  • A. It divides the list in half repeatedly until the item is found
  • B. It checks each element in the list one at a time, from start to end
  • C. It sorts the list first, then jumps directly to the target item
  • D. It starts from the middle of the list and works outwards
1 markfoundation

Describe how a linear search works on a list of n items. [3 marks]

3 marksstandard

Quick Recall Flashcards

What does linear search do?
Checks each item from start to end until found
What does binary search require?
Data must be sorted

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