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.
1. What is Artificial Intelligence (AI)?
a. Human-made intelligence
b. Machine that cooks food
c. Manual computing system
d. Internet hardware
Answer: a. Human-made intelligence
2. What is Robotics mainly about?
a. Studying planets
b. Designing and using robots
c. Writing books
d. Cooking systems
Answer: b. Designing and using robots
3. What does VPN stand for?
a. Virtual Private Network
b. Visual Public Network
c. Virtual Program Node
d. Verified Private Node
Answer: a. Virtual Private Network
4. What is Virtual Reality (VR)?
a. Real-world recording
b. Computer-generated environment
c. Printed graphics
d. Audio system only
Answer: b. Computer-generated environment
5. What does AR stand for?
a. Added Reality
b. Augmented Reality
c. Artificial Response
d. Automated Reality
Answer: b. Augmented Reality
6. What is a self-driving car also called?
a. Manual car
b. Autonomous car
c. Diesel car
d. Racing car
Answer: b. Autonomous car
7. Blockchain is mainly used for?
a. Gaming
b. Secure record keeping
c. Cooking recipes
d. Image editing
Answer: b. Secure record keeping
8. Data communication refers to?
a. Printing files
b. Transfer of data between devices
c. Editing videos
d. Playing music
Answer: b. Transfer of data between devices
9. Which is a communication medium?
a. Pen drive
b. Cable
c. Mouse
d. Printer
Answer: b. Cable
10. What is an encoder?
a. Device that deletes data
b. Device that converts data into coded form
c. Device that prints images
d. Device that stores music
Answer: b. Device that converts data into coded form
11. What is a decoder?
a. Converts coded data into readable form
b. Deletes files
c. Creates websites
d. Sends emails
Answer: a. Converts coded data into readable form
12. Infrared waves are used in?
a. Cooking
b. Remote controls
c. Painting
d. Printing books
Answer: b. Remote controls
13. Wi-Fi is used for?
a. Wired printing
b. Wireless internet connection
c. Charging devices
d. Playing DVDs
Answer: b. Wireless internet connection
14. Li-Fi uses?
a. Sound waves
b. Light waves
c. Heat waves
d. Water waves
Answer: b. Light waves
15. GPS stands for?
a. Global Positioning System
b. Global Power System
c. General Processing System
d. Global Packet Service
Answer: a. Global Positioning System
16. Bluetooth is used for?
a. Wired connection
b. Short-range wireless communication
c. Internet browsing
d. Video editing
Answer: b. Short-range wireless communication
17. Data analytics is used for?
a. Cooking data
b. Analyzing information
c. Printing photos
d. Designing clothes
Answer: b. Analyzing information
18. A workbook in Excel contains?
a. Only one sheet
b. Multiple worksheets
c. Only images
d. Only text files
Answer: b. Multiple worksheets
19. A worksheet is?
a. Entire file
b. Single sheet in workbook
c. Software system
d. Internet page
Answer: b. Single sheet in workbook
20. A cell in spreadsheet is?
a. A virus
b. Intersection of row and column
c. A folder
d. A device
Answer: b. Intersection of row and column
21. Active cell is?
a. Deleted cell
b. Currently selected cell
c. Hidden cell
d. Locked cell
Answer: b. Currently selected cell
22. Passive cell means?
a. Active input cell
b. Not currently selected cell
c. Error cell
d. Deleted cell
Answer: b. Not currently selected cell
23. Emerging technology refers to?
a. Old systems
b. New and developing technologies
c. Printed books
d. Manual tools only
Answer: b. New and developing technologies
24. Self-driving cars use mainly?
a. Paper maps
b. Sensors and AI
c. Manual steering only
d. Radio only
Answer: b. Sensors and AI
25. AI is widely used in?
a. Agriculture only
b. Healthcare, education, and transport
c. Only sports
d. Only cooking
Answer: b. Healthcare, education, and transport
26. VR is mainly used for?
a. Driving cars
b. Gaming and simulations
c. Writing books
d. Printing newspapers
Answer: b. Gaming and simulations
27. AR adds?
a. Nothing
b. Digital elements to real world
c. Noise only
d. Paper effects
Answer: b. Digital elements to real world
28. Blockchain is based on?
a. Central server
b. Distributed ledger
c. Single computer
d. Offline system
Answer: b. Distributed ledger
29. Wi-Fi works on?
a. Radio waves
b. Sound waves
c. Water waves
d. Heat waves
Answer: a. Radio waves
30. GPS helps in?
a. Cooking food
b. Navigation and location tracking
c. Editing videos
d. Printing books
Answer: b. Navigation and location tracking
31. Bluetooth range is usually?
a. Very long distance
b. Short distance
c. Global range
d. Satellite range
Answer: b. Short distance
32. Data analytics helps in?
a. Guessing randomly
b. Making decisions from data
c. Printing books
d. Designing clothes
Answer: b. Making decisions from data
33. Encoders are used in?
a. Data compression and transmission
b. Cooking systems
c. Drawing maps
d. Printing books
Answer: a. Data compression and transmission
34. Decoder converts?
a. Raw data to coded data
b. Coded data to original form
c. Images to sound
d. Text to video
Answer: b. Coded data to original form
35. Unguided media means?
a. Wireless transmission
b. Wired transmission
c. Printed media
d. Offline media
Answer: a. Wireless transmission
36. Infrared is commonly used in?
a. Remote controls
b. Space travel
c. Cooking ovens
d. Cars engines
Answer: a. Remote controls
37. Li-Fi is faster than?
a. Wi-Fi
b. Bluetooth
c. GPS
d. USB
Answer: a. Wi-Fi
38. VPN is used for?
a. Security and privacy online
b. Printing files
c. Gaming only
d. Video editing
Answer: a. Security and privacy online
39. AI stands for?
a. Automated Interface
b. Artificial Intelligence
c. Active Internet
d. Applied Input
Answer: b. Artificial Intelligence
40. Robotics combines?
a. Biology and chemistry
b. Engineering and AI
c. History and math
d. Music and art
Answer: b. Engineering and AI
41. Self-driving cars rely on?
a. Sensors, cameras, AI
b. Human drivers only
c. Paper maps
d. Radio only
Answer: a. Sensors, cameras, AI
42. Blockchain is secure because?
a. It is centralized
b. It is distributed and encrypted
c. It is offline
d. It uses paper records
Answer: b. It is distributed and encrypted
43. Communication media is used for?
a. Data transfer
b. Cooking
c. Drawing
d. Printing books
Answer: a. Data transfer
44. Fiber optic is a?
a. Guided medium
b. Unguided medium
c. Wireless device
d. Software
Answer: a. Guided medium
45. GPS uses?
a. Satellites
b. Cables
c. Bluetooth
d. Wi-Fi routers
Answer: a. Satellites
46. Bluetooth is mainly used in?
a. Short-range devices
b. Satellites
c. Deep sea cables
d. Books
Answer: a. Short-range devices
47. Wi-Fi is commonly found in?
a. Homes and offices
b. Only satellites
c. Only cars
d. Only airports
Answer: a. Homes and offices
48. Data analytics is widely used in?
a. Business and marketing
b. Painting
c. Cooking
d. Sports only
Answer: a. Business and marketing
49. Workbook and worksheet are part of?
a. MS Excel
b. MS Paint
c. MS Word only
d. Browser
Answer: a. MS Excel
50. A worksheet contains?
a. Charts only
b. Cells arranged in rows and columns
c. Videos
d. Audio files
Answer: b. Cells arranged in rows and columns
Test Yourself: Interactive MCQs (Emerging Technologies & IT Concepts)
