Paper 1 Revision

Paper 1 Revision

• Searching and sorting algorithms

• Data Types

• Programming fundamentals

• Writing python code, pseudocode and flowcharts

Questions

Multiple Choice

"hello"

• String

• Integer

• Float

• Word

Multiple Choice

45

• String

• Integer

• Float

• Number

Multiple Choice

56.867

• String

• Integer

• Float

• Decimal

Multiple Choice

"89"

• String

• Integer

• Float

• Number

Multiple Choice

What is a Boolean?

• A data type that contains whole numbers. eg: 3, 45, 124

• Numbers with decimal point. eg: 0.5, 2.45, 56.04

• Group of characters between quotation marks. eg: "dog"

• Data type that can only be True or False.

Multiple Choice

Which value is a Boolean?

• 64

• "cat"

• True

• 0.5

Multiple Choice

Which python statement assigns a numerical value input by a user and stores it in a variable of data type integer

• num = input("Enter a number")

• num = str(input("Enter a number"))

• num = int(input("Enter a number"))

• input("Enter a number") = num

Multiple Choice

"A named place to store a value that can change" is called a ...

• Subroutine

• Variable

• Constant

• Operator

Multiple Choice

Giving a value to a variable is know as what

• Assignment

• Casting

• Concatenation

• Input Sanitisation

Multiple Choice

What is the value of x?

x = 16 MOD 5

• 3

• 1

• 3.2

• 21

Multiple Choice

What is the value of x?

x = 16 DIV 5

• 1

• 3

• 3.2

• 11

3 Programming Fundamentals

• Iteration

• Selection

• Sequencing

Selection

• If statements. Where a

choice or a decision needs
to be made in your
program.

Writing Selection

number = 10

if number > 0:

print('Positive number')

else:

print('Negative number')

print('This statement is always executed')

Iteration – Loops (repetition of code)

• Count-Controlled iteration – Where we know the amount of times

our code will repeat. For example, a for loop.

• Condition-controlled iteration – Where code will repeat until a

condition is no longer true. For example, a While Loop

Count-controlled iteration

Count-controlled iteration

Condition-controlled iteration

Questions

Multiple Choice

A string data type hold what type of data?

• Whole number

• A group of characters

• Single Character

• True/ False

Multiple Choice

Concatenation is...

• Stripping characters from text

• Concentrating very hard on coding

• Joining together two or more strings

• Changing an number to text

Multiple Choice

Giving a value to a variable is know as what

• Assignment

• Casting

• Concatenation

• Input Sanitisation

Multiple Choice

A WHILE loop is...

• Condition Controlled

• Count Controlled

• Uncontrolled

• Strongly Controlled

Multiple Choice

In if...elif...else statement in python uses which programming concept?

• Sequence

• Selection

• Iteration

• Proliferation

Multiple Choice

In programming, casting is...

• Creating a collection of variables

• Converting one data type to another

• Joining together multiple strings

• Doing impressive magic

Multiple Choice

The repeated execution of a section of code when a program is running is known as...

• Sequence

• Selection

• Iteration

• Subroutine

Multiple Choice

The order in which the code will run is called.....

• Sequence

• Selection

• Iteration

• Subroutine

Multiple Choice

Which of the following is used to define a block of code in Python language?

• Indentation

• Key

• Brackets

• All of the mentioned

Draw

Complete a bubble sort on this list [4,3,1]. Draw your answer!

Draw

Complete a merge sort on this list [15,2,8,7,6,1]. Draw your answer!

Poll

Which sorting algorithm is quicker on big lists?

• Merge

• Bubble

Multiple Choice

Compares pairs of items and swaps them if they are in the wrong order. Each pair in the list is checked.

• Bubble sort

• Merge sort

Multiple Choice

What is an algorithm

• A series of step by step instructions

• software that analyses data

• hardware that stores data

• a type of computer

Multiple Choice

What is a linear search algorithm

• Going through a list one item at a time to find a value

• Searching on the internet

• A search engine

• A webpage

Multiple Choice

What is binary search

• Searches a sorted array by repeatedly dividing the search interval in half

• Going through a list one item at a time to find a value

Multiple Choice

What is the symbol for a decision in a flowchart?

• A parallelogram

• A diamond

• A circle

Multiple Choice

If a grade of 98 was inputted, what would be the output?

• Passed

• Failed

• Else

Multiple Choice

If the grade of 12 was input, what would be the output?

• Passed

• Failed

• Else

Multiple Choice

What would be the output of this flowchart if the student scored 89?

• Fail

• Pass

• Merit

• Distinction

Multiple Choice

What is the Output if the user enters:
Yes

• Leave umbrella at home

• Take an umbrella

Multiple Choice

What is the Output if the temperature is:
19

• Below Freezing

• Above Freezing

Multiple Choice

What symbol shows a decision?

• oval

• parallelogram

• rectangle

• diamond

Writing Selection – challenge

https://trinket.io/python/490a7be4f4?showInstruc
tions=true

Writing Selection – challenge

Answer:

Writing Selection – challenge

Writing Selection – challenge

Answer:

Writing count-controlled iteration

Writing count-controlled iteration Answer

Writing count-controlled iteration

Writing count-controlled iteration answer

Writing condition-controlled iteration -
Challenge

Writing condition-controlled iteration -
answer

Writing condition-controlled iteration -
challenge

Writing condition-controlled iteration -
Answer

Past Paper Questions

​https://www.savemyexams.co.uk/gcse/computer-science/ocr/-/pages/past-papers/