Lesson T2.2.1

T2.2.1 Lists, tables and arrays Quiz: KS3 Computing, Unit 2

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson T2.2.1, Lists, tables and arrays: 20 multiple choice questions for the KS3 Computing (National Curriculum), Unit 2: Programming, written with Revision Ninja.

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The 20 questions

  1. What is an array?

    • A single number stored in one variable that can be changed later
    • A structure that stores a set of items under one name, each with an index
    • A loop that repeats forever until the program is stopped by the user
    • A picture of a grid drawn on paper to show the layout of data

  2. In Python, what is the index of the first item in a list?

    • -1
    • 0
    • 1
    • 10

  3. A list is [4, 9, 2]. What is list[1]?

    • 9
    • 4
    • 1
    • 2

  4. A table has 3 rows and 4 columns. How many cells does it have?

    • 16
    • 12
    • 7
    • 34

  5. A teacher stores the test scores of 30 pupils. Which structure is most suitable?

    • A single number that holds the total of all scores
    • Thirty separate variables with different names
    • A picture of the class register
    • A list or array holding 30 values

  6. What does the length of the list [3, 8, 1, 6] equal?

    • 6
    • 8
    • 3
    • 4

  7. Which Python method adds an item to the end of a list?

    • append
    • insert_front
    • remove_all
    • delete

  8. A two-dimensional table of data uses what to find one value?

    • The total of all the values
    • A row number and a column number
    • A single name with no position
    • Only the colour of the cell

  9. What is a benefit of storing data in a list instead of many separate variables?

    • A loop can process every item without needing a new name for each
    • It removes the need to name the data at all
    • It stops the program from ever running out of memory
    • It makes the data impossible to change later

  10. A list is [10, 20, 30]. What is list[2]?

    • 30
    • 10
    • 20
    • 2

  11. What does it mean for a table to have columns?

    • Each column is a separate program
    • Each column holds one kind of value across all the rows
    • Columns are used only to draw borders on the screen
    • Each column holds one row of data

  12. A list stores ['red', 'blue', 'green']. What is the value at index 0?

    • 0
    • blue
    • green
    • red

  13. Which is a good reason to choose a table rather than a list?

    • The data has rows and columns, such as names with several scores each
    • The data never needs to be looked up again once it has been stored
    • The data is only ever one single number, so a list is not needed
    • The data must be printed in colour so that each row is easy to spot

  14. A program needs the number of items in a list before using a loop. Which is the most suitable check?

    • The colour of the first item
    • The length of the list
    • The number of letters in the program name
    • The index of the last item plus a random number

  15. What happens if a program asks for index 5 of a list with only 3 items?

    • The program prints zero and carries on normally
    • The list grows automatically to hold five items
    • An error occurs because the index is out of range
    • The list is sorted into a new order first

  16. Which type of structure would hold a single pupil's name, age and form?

    • A single list of only numbers
    • A record or row in a table with several fields
    • A Boolean value that is either true or false
    • A loop that counts from one to ten

  17. Which position does a table or list label as its first?

    • The position labelled 1
    • The position labelled -1
    • The last position in the table
    • The position labelled 0

  18. A list stores quiz answers. Which Python expression gives the second answer?

    • answers[-2]
    • answers[2]
    • answers[0]
    • answers[1]

  19. Why are arrays and lists used in programming?

    • To store many related values together under one name
    • To give each value its own separate file on disk
    • To remove the need for loops and conditions
    • To make programs run without any input

  20. A list called scores holds 5 values. What is len(scores)?

    • 0
    • 5
    • 4
    • 6

All KS3 Computing quizzes