Lesson details

Key learning points

  1. In this lesson, we will learn the first sorting algorithm in this unit: bubble sort. We will discuss why and where sorting is used in real life, become familiar with performing a bubble sort on a set of data, and investigate the efficiency of bubble sort.

Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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4 Questions

Q1.
The sequence of items in the list can either be ordered or unordered.
Binary Search
Correct answer: Linear Search
Q2.
If you double the number of items in the list, you will need at most one more comparison.
Correct answer: Binary Search
Linear Search
Q3.
The algorithm is simpler to write.
Binary Search
Correct answer: Linear Search
Q4.
What does the initial value of -1 indicate?
The item has been found.
Correct answer: The item has not been found.

3 Questions

Q1.
"If the item at the current position is greater than the one next to it, swap the items within the list"
False
Correct answer: True
Q2.
"A single pass results in the smallest element reaching its final position at the end of the list"
Correct answer: False
True
Q3.
"The number of comparisons made in a single pass is always equal to the number of pairs you pass over"
False
Correct answer: True