Python list operations | Computing | Quizalize & Oak National Academy

Starter quiz

______ is used when there is more than one possible path for a program to follow.
- 'selection' ✓
Match the keyword to the definition.
- selection
  
  ⇔
  
  used when there is more than one possible path for a program to follow ✓
- list
  
  ⇔
  
  a collection of data in a particular sequence ✓
- data structure
  
  ⇔
  
  an organised way to store data for easy use ✓
- index
  
  ⇔
  
  the location of an item or element in a list or string ✓
What is the correct way to access the first item in a list called names?
- `names[0]` ✓
- `names[1]`
- `names{0}`
- `names(0)`
- `names(1)`
What letter can you type in to join text and the values held by a variable in a print statement?
- j
- c
- f ✓
- p
What is an IndexError?
- when you have too many items in a list
- when you refer to an index that does not exist in a list ✓
- when you have too few items in a list
- when you have two of the same index values in a list
A list is a d______ data structure that can grow or shrink as you add or remove items.
- 'dynamic' ✓

Exit quiz

Which list method can be used to add an item to the end of a list?
- `list.insert()`
- `list.add()`
- `list.append()` ✓
- `list.remove()`
Which list method can be used to remove the last item from a list if you do not know the index of the last item?
- `list.pop()` ✓
- `list.remove()`
- `list.delete()`
- `list.append()`
The operation `list.sort(reverse=True)` sorts a list in ______ order
- 'descending' ✓
What list method is used to find the index of a specific item?
- `list.find(item)`
- `list.search(item)`
- `list.index(item)` ✓
- `index.find(item)`

Worksheet

Loading worksheet ...

Presentation

Loading presentation ...

Video

Lesson Details

Key learning points

List methods can be used to perform operations on lists such as to add, remove and insert items.
A list is a dynamic data structure, meaning the length of a list is the number of values it currently stores.
A list can be sorted using a list method to aid processing.

Common misconception

Once an item is added to a list it is fixed in to the structure of the list and it cannot be altered.

Items can be removed, inserted and amended in a list using list methods. These methods change the structure of the list. Values of items can also be updated.

Keywords

Append - adding to an existing data structure
Remove - taking an item away from an existing data structure
Sort - putting items in a particular order
List method - a built-in function that will perform an operation on a list