Computer Science for Year 3: Learn the Basics of Coding and Algorithms

Question 1

What's the main reason we have a user interface in a computer program?

Accepted Answer

To let people use the program

Answer

To link the program to the computer's parts

Answer

To keep information and data

Question 2

When a computer runs an algorithm, what does it do?

Accepted Answer

Follows the instructions in the order they are given.

Answer

Only follows the instructions it understands.

Answer

Follows the instructions in any order.

Question 3

When computers communicate over the internet, they send small pieces of information to each other. What is the name for these small pieces of information?

Accepted Answer

Packets

Answer

Bytes

Answer

Bits

Answer

Signals

Question 4

To create a simple computer program, what steps do you need to follow? Explain why each step is important.

Accepted Answer

1. Design the program (plan what it will do)
2. Write the code (type the instructions)
3. Test the program (check if it works)
4. Debug the program (fix any errors)

Answer

1. Write the code (type the instructions)
2. Test the program (check if it works)
3. Design the program (plan what it will do)

Answer

1. Test the program (check if it works)
2. Write the code (type the instructions)
3. Design the program (plan what it will do)

Answer

1. Design the program (plan what it will do)
2. Debug the program (fix any errors)
3. Write the code (type the instructions)

Question 5

Why is testing and debugging crucial in programming?

Accepted Answer

To ensure the program functions as expected

Answer

To enhance the program's appearance

Answer

To speed up the program's execution

Answer

To simplify the program's usage

Question 6

Which of these is NOT a program you might use on a computer?

Accepted Answer

Virus

Answer

Word processor

Answer

Spreadsheet

Answer

Game

Question 7

In a computer, what part is like the furniture and what part is like the instructions on how to build the house?

Accepted Answer

Hardware is like the furniture, and software is like the instructions.

Answer

Software is like the furniture, and hardware is like the instructions.

Answer

Hardware and software are both like the furniture.

Answer

I don't know.

Question 8

When you spot an error in your computer program, what should you do first?

Accepted Answer

Read the error message and try to understand the issue.

Answer

Change different parts of the code.

Answer

Run the program to see if it works.

Question 9

In computer programming, what's the main reason we use variables?

Accepted Answer

To keep information that can change during the program

Answer

To set up how the program is organized

Answer

To do math problems

Question 10

When using computers and technology, it's important to use them in a responsible and ethical way. What does this mean?

Accepted Answer

Using technology to help others and avoid harming them.

Answer

Using technology to play games and have fun.

Answer

Using technology to make as much money as possible.

Answer

Using technology to learn new things.

Question 11

How has technology impacted your daily life? Think about both the good and not-so-good ways.

Accepted Answer

Technology has made many things easier and more convenient.

Accepted Answer

I use computers for school, fun, and staying in touch with others.

Answer

Technology doesn't affect me much because I don't use it often.

Answer

Technology is dangerous and should be avoided.

Question 12

In computer programming, what does it mean when a function calls itself over and over until a certain condition is met?

Accepted Answer

Recursion

Answer

Children's programming language

Answer

Speeding up programs

Question 13

How do computers store information?

Accepted Answer

Using a special code where all data is stored as 0s and 1s.

Answer

By storing all data in a single, large memory space.

Answer

By converting all data into pictures and storing them on a hard drive.

Question 14

Which type of software helps you create other software?

Accepted Answer

Compiler

Answer

Operating system

Answer

Database

Answer

Web browser

Question 15

For creating a simple game, which programming language is more suitable: Scratch or Python?

Accepted Answer

Scratch, as it uses blocks and is beginner-friendly.

Answer

Python, as it's text-based and offers more capabilities.

Answer

The choice of language doesn't impact the game's simplicity.

Question 16

What makes a strong and secure password?

Accepted Answer

A combination of uppercase and lowercase letters, numbers, and symbols

Answer

A simple word that's easy to recall

Answer

The same password for all your accounts

Answer

Sharing your password with friends for safekeeping

Question 17

Why is documentation important in computer programming?

Accepted Answer

It helps other programmers understand and use the code.

Answer

It is only needed for large programs.

Answer

It makes the code run faster.

Answer

It is not important for users of the program.

Question 18

When using face recognition technology, what is the most important ethical consideration?

Accepted Answer

Protecting privacy and preventing unfair use

Answer

Ensuring accuracy and reliability

Answer

Limiting use to positive purposes

Answer

Educating the public about the technology

Question 19

What is an algorithm in computer science?

Accepted Answer

A set of instructions that tells a computer what to do?

Answer

A type of computer virus?

Answer

A computer game?

Answer

Another name for a programming language?

Question 20

You have a list of numbers from 1 to 100. Which search algorithm would be more efficient for finding the number 50: linear search or binary search?

Accepted Answer

Binary search, which divides the list in half each time

Answer

Linear search, which checks each number in the list one by one

Answer

Both algorithms are equally efficient

Answer

Neither algorithm can be used to find the number 50 in the list

Question 21

Why is testing crucial for a software program?

Accepted Answer

To ensure the program functions correctly and meets its intended purpose.

Answer

To enhance the program's visual appeal and user-friendliness.

Answer

To optimize the program's speed and performance.

Question 22

Why is it useful to use a structured data format like JSON or XML when we want to share data between different systems?

Accepted Answer

Structured data formats make it easier for computers to read and understand the data.

Answer

Structured data formats take up less space than unstructured data formats.

Answer

Structured data formats are more secure than unstructured data formats.

Question 23

Which type of software is a computer game?

Accepted Answer

Entertainment software

Answer

Productivity software

Answer

System software

Answer

Educational software

Question 24

How can technology help us learn?

Accepted Answer

We can use the internet to find information.

Accepted Answer

We can use computers to play educational games.

Accepted Answer

We can use apps to practice our spelling.

Answer

We can use computers to watch videos.

Question 25

Which part of a computer can you physically touch?

Accepted Answer

A keyboard

Answer

A computer program

Answer

The internet

Answer

A website

Question 26

Why is it crucial to protect our personal information online?

Accepted Answer

To prevent others from using it to harm or deceive us

Answer

To ensure our computers function smoothly

Answer

To impress our friends

Question 27

What's the main job of an operating system on a computer?

Accepted Answer

To control all the different parts of the computer, like the screen, keyboard, and memory.

Answer

To store all your files and folders.

Answer

To connect to the internet.

Answer

To play games.

Question 28

Which of these is NOT a programming language?

Accepted Answer

English

Answer

Scratch

Answer

Python

Answer

JavaScript

Question 29

What is an algorithm?

Accepted Answer

A set of instructions to solve a problem

Answer

A type of computer program

Answer

A way to store data

Answer

A method for creating websites

Question 30

What do loops allow us to do in programming?

Accepted Answer

Repeat a set of instructions multiple times

Answer

Store data

Answer

Create graphics

Answer

Control the flow of a program

Question 31

What does debugging in programming mean?

Accepted Answer

Finding and fixing errors in a program

Answer

Writing the code for a program

Answer

Testing a program

Answer

Planning a program

Question 32

Which of the following is NOT a job that uses computer programming?

Accepted Answer

Doctor

Answer

Software engineer

Answer

Web developer

Answer

Data scientist

Question 33

What is the key difference between a variable and a constant?

Accepted Answer

A variable can change value, while a constant cannot

Answer

A constant can change value, while a variable cannot

Answer

There is no difference between a variable and a constant

Answer

A variable is used to store data, while a constant is used to perform calculations

Question 34

Which is NOT considered good practice in programming?

Accepted Answer

Using long and complex code

Answer

Using descriptive variable names

Answer

Commenting your code

Answer

Testing your program regularly

Question 35

What is the main purpose of an algorithm?

Accepted Answer

To provide instructions to a computer

Answer

To store data

Answer

To create images

Answer

To compose music

Question 36

What action does the command 'move forward 10' perform?

Accepted Answer

Moves the sprite forward by 10 steps

Answer

Moves the sprite backward by 10 steps

Answer

Rotates the sprite left by 10 degrees

Answer

Rotates the sprite right by 10 degrees

Question 37

What is the purpose of the 'wait' command?

Accepted Answer

To pause the program for a specific duration

Answer

To end the program

Answer

To start the program

Answer

To clear the screen

Question 38

What's the first thing you need to do to make a computer program?

Accepted Answer

Plan the steps

Answer

Write the code

Answer

Make the program pretty

Answer

Test the program

Question 39

What's an algorithm?

Accepted Answer

A list of steps to follow

Answer

A type of computer program

Answer

A way to make your computer faster

Answer

A kind of programming language

Question 40

Which of these is a programming language?

Accepted Answer

Python

Answer

Web design

Answer

Microsoft Word

Answer

Spreadsheet

Question 41

What's a variable used for?

Accepted Answer

Storing information

Answer

Doing math problems

Answer

Making the program look nice

Answer

Stopping the program from running

Question 42

What's the difference between a loop and an 'if' statement?

Accepted Answer

Loops repeat something, while 'if' statements only do it once.

Answer

'If' statements repeat something, while loops only do it once.

Answer

Loops and 'if' statements do the same thing.

Answer

There's no difference between loops and 'if' statements.

Question 43

What's debugging?

Accepted Answer

Finding and fixing errors in your code

Answer

Making your code super fast

Answer

Writing extra notes in your code

Answer

Turning your code into a drawing

Question 44

Which of the following is NOT an input device?

Accepted Answer

Printer

Answer

Keyboard

Answer

Mouse

Answer

Webcam

Question 45

What is the purpose of a loop in a program?

Accepted Answer

To repeat a set of instructions multiple times

Answer

To stop the program from running

Answer

To store data

Answer

To perform calculations

Question 46

Which of the following is a variable?

Accepted Answer

A named storage location for data

Answer

A type of programming language

Answer

A loop that repeats indefinitely

Answer

An input device

Question 47

What is debugging?

Accepted Answer

Fixing errors in a program

Answer

Writing new code

Answer

Testing a program

Answer

Deleting unnecessary code

Question 48

What is the difference between a sequence and a selection in a program?

Accepted Answer

A sequence runs instructions in order, while a selection executes instructions based on a condition.

Answer

A sequence is used to store data, while a selection is used to execute instructions.

Answer

A sequence is a type of loop, while a selection is a type of variable.

Answer

There is no difference between a sequence and a selection.

Question 49

What is the purpose of a function in a program?

Accepted Answer

To group together a set of instructions that can be used multiple times

Answer

To store data

Answer

To control the flow of a program

Answer

To debug the program

Question 50

Which of the following is NOT a good practice in programming?

Accepted Answer

Using very complex code

Answer

Using clear variable names

Answer

Indenting code to make it readable

Answer

Commenting your code

Question 51

What do the letters in GUI stand for?

Accepted Answer

Graphical User Interface

Answer

Graphical User Interaction

Answer

Graphical User Installation

Question 52

Why do we use programming languages?

Accepted Answer

To talk to computers

Answer

To create websites

Answer

To store files

Answer

To play games

Question 53

Which is a beginner-friendly programming language?

Accepted Answer

Python

Answer

C++

Answer

Java

Answer

SQL

Question 54

What type of network is a LAN?

Accepted Answer

Local Area Network

Answer

Electronic mail

Answer

World Wide Web

Answer

Database

Question 55

What file format can contain text?

Accepted Answer

Document

Answer

Image

Answer

Website

Answer

Database

Question 56

What computer component stores our files?

Accepted Answer

Hard drive

Answer

Processor

Answer

Memory

Answer

Graphics card

Question 57

What is the purpose of a loop in a program?

Accepted Answer

To do something over and over again

Answer

To stop the program if something happens

Answer

To store information

Answer

To show something on the screen

Question 58

What is the difference between a thing that can change and a thing that stays the same in a program?

Accepted Answer

A thing that can change is called a variable and a thing that stays the same is called a constant

Answer

A thing that stays the same is called a variable and a thing that can change is called a constant

Answer

A variable stores information and a constant stores instructions

Answer

A constant stores information and a variable stores instructions

Question 59

What is the purpose of a picture that shows the steps in a program?

Accepted Answer

To make it easier to understand the program

Answer

To store information

Answer

To show something on the screen

Answer

To translate code into a program

Question 60

Which of these is NOT a way to check for problems in a program?

Accepted Answer

Asking a friend

Answer

Printing the values of things that can change

Answer

Stopping the program at certain points

Answer

Using a special tool

Question 61

What is the step-by-step set of instructions a computer follows called?

Accepted Answer

Algorithm

Answer

Variable

Answer

Loop

Answer

Function

Question 62

Why do we use loops in programming?

Accepted Answer

To repeat a set of instructions multiple times

Answer

To store data

Answer

To make decisions

Answer

To draw shapes

Question 63

Which symbol is used to add a comment to your code?

Accepted Answer

//

Answer

#

Answer

/*

Answer

;

Question 64

Which of these is NOT a logical operator?

Accepted Answer

IF

Answer

AND

Answer

OR

Answer

NOT