PrepWisePrepWiseBinary Search
3.1 Fundamentals of AlgorithmsStudy Notes

Deep Dive: Bubble Sort Example

Part of Binary Search · GCSE GCSE Computer Science revision

This study notes covers Deep Dive: Bubble Sort Example within Binary Search for GCSE Computer Science. Revise Binary Search in 3.1 Fundamentals of Algorithms for GCSE Computer Science with 15 exam-style questions and 10 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 5 of 9 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 5 of 9

Practice

15 questions

Recall

10 flashcards

Deep Dive: Bubble Sort Example

Sort [5, 3, 8, 1]:

Pass 1:

  • [5, 3, 8, 1] → Compare 5,3 → Swap → [3, 5, 8, 1]
  • [3, 5, 8, 1] → Compare 5,8 → No swap
  • [3, 5, 8, 1] → Compare 8,1 → Swap → [3, 5, 1, 8]

Pass 2:

  • [3, 5, 1, 8] → 3,5 OK → 5,1 Swap → [3, 1, 5, 8]

Pass 3:

  • [3, 1, 5, 8] → 3,1 Swap → [1, 3, 5, 8] ✓ Sorted!

Keep building this topic

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

Sorting Algorithm ComparisonDeep Dive: Merge SortVideo LessonPutting Things in Order

Practice Questions for Binary Search

Which of the following is a requirement before binary search can be used?

  • A. The list must contain an even number of items
  • B. The list must be sorted in order
  • C. The list must be stored in a 2D array
  • D. The target value must be in the first half of the list
1 markfoundation

Describe how a binary search algorithm finds a target value in a sorted list.

3 marksstandard

Quick Recall Flashcards

What technique does binary search use?
Divide and conquer - repeatedly halves the search space
What is the time complexity of binary search?
O(log n) - logarithmic time

15 questions on Binary Search — practise free

Instant marking, adaptive difficulty, and 10 spaced repetition flashcards. Free until your GCSEs.

Try PrepWise Free

Previous

Sorting Algorithm Comparison

Next

Deep Dive: Merge Sort