These lecture notes are prepared by Salman Ahmad, who is both a teacher and a web developer.
The purpose of this material is to make the topic clear and useful for students of Class 9 Computer Science.
Practice MCQs
1. What is computational thinking?
a. A way to repair computers
b. A step-by-step problem-solving method
c. A programming language
d. A hardware device
Answer: b. A step-by-step problem-solving method
2. Computational thinking is used in:
a. Computer science only
b. Biology only
c. Daily life only
d. All of these
Answer: d. All of these
3. Decomposition means:
a. Combining problems
b. Breaking a problem into smaller parts
c. Ignoring problems
d. Solving instantly
Answer: b. Breaking a problem into smaller parts
4. Which is an example of decomposition?
a. Solving everything at once
b. Dividing a task into steps
c. Ignoring details
d. Guessing answers
Answer: b. Dividing a task into steps
5. Pattern recognition means:
a. Breaking problems
b. Finding similarities
c. Ignoring details
d. Writing code
Answer: b. Finding similarities
6. Even and odd numbers are an example of:
a. Decomposition
b. Abstraction
c. Pattern recognition
d. Algorithm
Answer: c. Pattern recognition
7. Abstraction means:
a. Focusing only on important details
b. Solving everything
c. Breaking problems
d. Writing programs
Answer: a. Focusing only on important details
8. Which is an example of abstraction?
a. Studying everything in detail
b. Ignoring important points
c. Focusing on key concepts only
d. Writing code
Answer: c. Focusing on key concepts only
9. An algorithm is:
a. A computer device
b. A step-by-step instruction
c. A software program
d. A network
Answer: b. A step-by-step instruction
10. Which is an example of an algorithm?
a. Guessing answers
b. Following steps to solve a problem
c. Ignoring steps
d. Random thinking
Answer: b. Following steps to solve a problem
11. Problem understanding means:
a. Solving quickly
b. Fully understanding the problem before solving
c. Ignoring the problem
d. Writing code immediately
Answer: b. Fully understanding the problem before solving
12. Why is problem simplification important?
a. Makes problems harder
b. Saves time and effort
c. Avoids solving problems
d. Removes solutions
Answer: b. Saves time and effort
13. Solution selection means:
a. Choosing the worst solution
b. Choosing the best solution
c. Ignoring solutions
d. Random choice
Answer: b. Choosing the best solution
14. Which is the best solution for studying?
a. Study everything in one day
b. Study chapter by chapter
c. Do nothing
d. Skip chapters
Answer: b. Study chapter by chapter
15. Computational thinking helps to:
a. Increase confusion
b. Solve problems efficiently
c. Avoid problems
d. Waste time
Answer: b. Solve problems efficiently
Test Yourself: Interactive MCQs (Computational Thinking)
