Computational Thinking for Year 11 Computing: Interactive Quizzes and Practice

Question 1

When breaking down a complex problem into smaller, more manageable parts, what is this process called in computational thinking?

Accepted Answer

Decomposition

Answer

Abstraction

Answer

Refactoring

Answer

Iteration

Question 2

In the process of abstraction, what is removed?

Accepted Answer

Irrelevant details

Answer

Essential details

Answer

Key concepts

Answer

Specific examples

Question 3

Which of these is NOT a key feature of computational thinking?

Accepted Answer

Memorizing

Answer

Abstracting

Answer

Decomposing

Answer

Creating algorithms

Question 4

An algorithm with a time complexity of O(n^2) exhibits:

Accepted Answer

Quadratic growth

Answer

Linear growth

Answer

Constant growth

Answer

Logarithmic growth

Question 5

Which of the following is a core concept in computational thinking?

Accepted Answer

Abstraction

Answer

Recursion

Answer

Polymorphism

Answer

Encapsulation

Question 6

Decomposition involves breaking down a problem into:

Accepted Answer

Smaller, more manageable parts

Answer

Larger, more unwieldy components

Answer

Independent and unrelated elements

Answer

Sequential and interdependent steps

Question 7

Which of the following is NOT an advantage of utilizing algorithms?

Accepted Answer

Encouraging creative thinking

Answer

Providing a structured sequence of instructions

Answer

Enhancing efficiency and accuracy

Answer

Facilitating problem simplification

Question 8

A pseudocode statement representing a series of instructions to be executed sequentially is known as a:

Accepted Answer

Sequence

Answer

Loop

Answer

Branch

Answer

Procedure

Question 9

What is the initial step in developing an algorithm?

Accepted Answer

Defining the problem

Answer

Creating a flowchart

Answer

Identifying potential solutions

Answer

Implementing the solution

Question 10

A variable that holds a fixed value throughout a program's execution is called a:

Accepted Answer

Constant

Answer

Input

Answer

Output

Answer

Temporary

Question 11

Which among the following is NOT a logical operator?

Accepted Answer

IF

Answer

AND

Answer

NOT

Answer

OR

Question 12

A loop that continues execution as long as a condition remains true is known as a:

Accepted Answer

While loop

Answer

For loop

Answer

Do-while loop

Answer

Post-test loop

Question 13

Which of these is NOT a key feature of computational thinking?

Accepted Answer

Guesswork

Answer

Abstraction

Answer

Decomposition

Answer

Algorithmic thinking

Question 14

Which of these concepts is essential to computational thinking?

Accepted Answer

Abstraction

Accepted Answer

Decomposition

Accepted Answer

Algorithmic Thinking

Answer

Randomness

Question 15

Which of the following is NOT a core concept in computational thinking?

Accepted Answer

Generalisation

Answer

Abstraction

Answer

Decomposition

Answer

Algorithmic thinking

Question 16

The process of breaking down a complex problem into smaller, more manageable parts is known as:

Accepted Answer

Decomposition

Answer

Abstraction

Answer

Algorithmic thinking

Answer

Generalisation

Question 17

Which step involves breaking down a problem into smaller, more manageable parts?

Accepted Answer

Decomposition

Answer

Abstraction

Answer

Algorithm design

Answer

Evaluation

Question 18

A precise series of logical instructions describing how to solve a problem is called a/an:

Accepted Answer

Algorithm

Answer

Variable

Answer

Function

Answer

Expression

Question 19

In computational thinking, what does evaluation involve?

Accepted Answer

Checking the accuracy and efficiency of a solution

Answer

Finding and fixing errors in a program

Answer

Creating a visual representation of a problem

Answer

Breaking down a problem into smaller parts

Question 20

Which technique helps improve an algorithm's efficiency?

Accepted Answer

Reducing unnecessary steps

Answer

Using complex data structures

Answer

Increasing the number of variables

Answer

Adding comments to the code

Question 21

A method involving repeated application of a set of steps until a desired outcome is achieved is known as:

Accepted Answer

Iteration

Answer

Recursion

Answer

Selection

Answer

Recursion

Question 22

What is the fundamental concept behind computational thinking?

Accepted Answer

Breaking down complex problems into smaller, manageable steps

Answer

Using technology to solve problems

Answer

Focusing on precise details of a problem

Answer

Developing algorithms that can be executed by computers

Question 23

When developing an algorithm, what is the initial stage?

Accepted Answer

Outlining the steps of the solution

Answer

Encoding the algorithm in a programming language

Answer

Testing the algorithm's functionality

Answer

Measuring the algorithm's efficiency

Question 24

Which loop type is most suitable for iterating through a series of elements?

Accepted Answer

For loop

Answer

While loop

Answer

Do-while loop

Answer

Recursive loop

Question 25

What is the main purpose of utilizing conditionals in algorithms?

Accepted Answer

Guiding the flow of execution

Answer

Storing data values

Answer

Performing calculations

Answer

Inputting data

Question 26

What is the primary distinction between recursion and iteration?

Accepted Answer

Recursion involves calling a function within itself, while iteration uses a loop

Answer

Recursion is a top-down approach, while iteration is a bottom-up approach

Answer

Iteration is a top-down approach, while recursion is a bottom-up approach

Answer

Iteration involves calling a function within itself, while recursion uses a loop

Question 27

What is the primary goal of computational thinking?

Accepted Answer

Solving problems effectively and efficiently

Answer

Designing and implementing complex algorithms

Answer

Comprehending the inner workings of computers

Answer

Developing proficiency in a specific programming language

Question 28

Which of the following is not a property of an algorithm?

Accepted Answer

Independent of the input

Answer

Unambiguous

Answer

Finite

Question 29

Which of the following is NOT a characteristic of algorithmic thinking?

Accepted Answer

Using ambiguous and imprecise language

Answer

Breaking down complex problems into smaller steps

Answer

Identifying patterns and relationships

Answer

Testing and refining solutions

Question 30

What is the process of dividing a complex problem into simpler, more manageable parts known as?

Accepted Answer

Decomposition

Answer

Abstraction

Answer

Generalization

Answer

Algorithmicization

Question 31

What is the primary purpose of testing and debugging in computational thinking?

Accepted Answer

To identify and correct errors in algorithms

Answer

To improve the efficiency and effectiveness of algorithms

Answer

To generalize algorithms to different contexts

Answer

To transform algorithms into higher-level representations

Question 32

What is the fundamental distinction between abstraction and generalization in computational thinking?

Accepted Answer

Abstraction involves omitting unnecessary details, while generalization involves identifying shared patterns.

Answer

Generalization involves omitting unnecessary details, while abstraction involves identifying shared patterns.

Answer

Both abstraction and generalization involve omitting unnecessary details.

Answer

Both abstraction and generalization involve identifying shared patterns.

Question 33

Which of the following best describes an algorithm?

Accepted Answer

A set of step-by-step instructions for completing a task

Answer

A thorough description of a problem

Answer

A high-level plan for solving a problem

Answer

A list of potential solutions to a problem

Question 34

What is the primary use of a flowchart?

Accepted Answer

Visual representation of an algorithm

Answer

Tabular data storage

Answer

Automatic code generation

Answer

Program correctness verification

Question 35

What is the time complexity of a linear search algorithm?

Accepted Answer

O(n)

Answer

O(log n)

Answer

O(n^2)

Answer

O(1)

Question 36

What is an advantage of using a greedy algorithm?

Accepted Answer

Simplicity and efficiency

Answer

Guaranteed optimal solution

Answer

Universal problem applicability

Answer

Low time complexity

Question 37

What differentiates a function from a procedure?

Accepted Answer

Functions return a value, procedures do not

Answer

Procedures return a value, functions do not

Answer

Functions and procedures are interchangeable

Answer

Procedures are more efficient than functions

Question 38

Which concept is fundamental to object-oriented programming?

Accepted Answer

Encapsulation

Answer

Iteration

Answer

Recursion

Answer

Overloading

Question 39

How can computational thinking principles, like abstraction and decomposition, be effectively applied to enhance efficiency in daily tasks apart from computer science?

Accepted Answer

Planning a study schedule by dividing extensive assignments into smaller, more manageable portions.

Accepted Answer

Planning a trip by researching destinations and optimizing the route based on cost and time constraints.

Answer

Cooking a meal using a recipe without regard for the order of the steps.

Answer

Creating a to-do list without prioritizing or categorizing the tasks.

Question 40

Which of the following is NOT a fundamental concept of computational thinking?

Accepted Answer

Elaboration

Answer

Algorithmic thinking

Answer

Abstraction

Answer

Decomposition

Question 41

In computational thinking, breaking down a complex problem into smaller, manageable parts is referred to as:

Accepted Answer

Decomposition

Answer

Evaluation

Answer

Generalization

Answer

Abstraction

Question 42

What term describes a set of clear instructions that a computer can execute to perform a specific task?

Accepted Answer

Algorithm

Answer

Program

Answer

Method

Answer

Function

Question 43

The process of identifying and focusing on the essential characteristics of a problem while ignoring unnecessary details is known as:

Accepted Answer

Abstraction

Answer

Decomposition

Answer

Generalization

Question 44

Which of the following scenarios best exemplifies algorithmic thinking?

Accepted Answer

Developing a step-by-step solution to a math problem

Answer

Drawing a picture to illustrate a concept

Answer

Singing a song

Answer

Discussing the ethical implications of a new technology

Question 45

Computational thinking involves:

Accepted Answer

Applying logical and efficient approaches to problem-solving

Answer

Focusing on creativity and artistic expression

Answer

Memorizing a vast amount of information

Answer

Understanding abstract theories

Question 46

Why is abstraction a beneficial aspect of computational thinking?

Accepted Answer

It simplifies problems, making them easier to understand and solve

Answer

It complicates problems, requiring more resources to solve

Answer

It eliminates the need for human problem-solving

Answer

It reduces the accuracy and reliability of solutions

Question 47

Computational thinking skills are valuable because they enable individuals to:

Accepted Answer

Systematically analyze problems and design effective solutions

Answer

Memorize large amounts of information

Answer

Write complex mathematical proofs

Question 48

Which of the following is NOT a characteristic of an algorithm?

Accepted Answer

Ambiguity

Answer

Clear and unambiguous steps

Answer

Effectiveness in solving problems

Answer

Finite and well-defined

Question 49

Computational thinking is a valuable skill for students as it:

Accepted Answer

Prepares them for careers in various fields beyond technology

Answer

Is exclusively relevant to computer science

Answer

Eliminates the need for traditional problem-solving methods

Answer

Guarantees academic success in all subjects