30 Science and Technology Quiz Questions and Answers

The development of science and technology has had a profound impact on human civilization, transforming almost every aspect of our lives. Over the past centuries, advancements in scientific knowledge and technological innovations have accelerated at an unprecedented rate, shaping the world we live in today.

Science, through rigorous observation, experimentation, and analysis, has expanded our understanding of the natural world. It has led to groundbreaking discoveries across various disciplines, from physics and chemistry to biology and astronomy. These scientific breakthroughs have revolutionized our understanding of the universe, enabling us to delve into the microscopic realms of atoms and subatomic particles and explore the vastness of space.

Technological advancements, fueled by scientific knowledge, have given rise to transformative inventions and innovations. From the steam engine to electricity, computers, and the internet, technology has reshaped industries, communication, transportation, healthcare, and entertainment. It has increased productivity, efficiency, and connectivity, facilitating global collaboration and exchange of information.

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The development of science and technology has brought immense benefits to society. It has improved living standards, enhanced healthcare and medicine, increased agricultural productivity, and extended human lifespan. It has made information accessible to a broader population, bridging gaps and fostering cultural exchange. Moreover, technology has facilitated the democratization of knowledge, empowering individuals and communities with tools for education, self-expression, and economic opportunities.

In this article

Part 1: 30 multiple-choice questions related to science and technology

1. What does CPU stand for?
a) Central Processing Unit
b) Computer Personal Unit
c) Central Power Unit
d) Computer Programming Unit
Answer: a) Central Processing Unit

2. What is the smallest unit of digital information?
a) Byte
b) Bit
c) Megabyte
d) Gigabyte
Answer: b) Bit

3. What is the process of converting analog signals into digital data called?
a) Encoding
b) Decoding
c) Modulation
d) Demodulation
Answer: c) Modulation

4. What is the primary purpose of a firewall in network security?
a) Virus scanning
b) Data encryption
c) Access control
d) Device authentication
Answer: c) Access control

5. What is the chemical symbol for iron?
a) Ir
b) Au
c) Fe
d) Ag
Answer: c) Fe

6. Which programming language is commonly used for web development?
a) Java
b) Python
d) C++
Answer: c) HTML

7. What is the process of copying files from a remote server to a local computer called?
a) Downloading
b) Uploading
c) Transferring
d) Syncing
Answer: a) Downloading

8. What does HTML stand for?
a) HyperText Markup Language
b) High Transmission Mode Language
c) Hypersonic Technical Machine Language
d) Hyper Tool Mechanism Language
Answer: a) HyperText Markup Language

9. Which of the following is a high-level programming language?
a) Binary
b) Assembly
c) Java
d) Machine code
Answer: c) Java

10. What is the function of an operating system in a computer?
a) Managing hardware resources
b) Executing application software
c) Storing data files
d) Providing internet connectivity
Answer: a) Managing hardware resources

11. What is the main component of a solar panel that converts sunlight into electricity?
a) Photocell
b) Capacitor
c) Diode
d) Transistor
Answer: a) Photocell

12. What is the unit of electric current?
a) Ampere
b) Volt
c) Watt
d) Ohm
Answer: a) Ampere

13. What type of energy is stored in a battery?
a) Thermal energy
b) Mechanical energy
c) Chemical energy
d) Nuclear energy
Answer: c) Chemical energy

14. What is the process of converting sunlight into usable energy called?
a) Photosynthesis
b) Solarization
c) Photovoltaic
d) Solar thermal
Answer: c) Photovoltaic

15. What does the acronym “GPS” stand for?
a) Global Pointing System
b) Global Positioning System
c) General Positioning Service
d) Geographical Positioning System
Answer: b) Global Positioning System

Part 2: Download science and technology questions & answers for free

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16. Which of the following is an example of a renewable energy source?
a) Natural gas
b) Coal
c) Wind
d) Nuclear power
Answer: c) Wind

17. What is the basic unit of information in a computer?
a) Byte
b) Kilobyte
c) Gigabyte
d) Terabyte
Answer: a) Byte

18. Which of the following is NOT a type of computer memory?
a) RAM
b) ROM
c) CPU
d) Cache
Answer: c) CPU

19. What is the primary function of a router in a computer network?
a) Virus scanning
b) Data storage
c) Data encryption
d) Packet forwarding
Answer: d) Packet forwarding

20. Which of the following programming languages is used for statistical analysis and data visualization?
a) Java
b) Python
c) C++
d) R
Answer: d) R

21. What is the term for a malicious software that spreads from one computer to another without user intervention?
a) Virus
b) Trojan horse
c) Worm
d) Spyware
Answer: c) Worm

22. What is the process of converting computer code into machine-readable instructions called?
a) Compilation
b) Interpretation
c) Execution
d) Debugging
Answer: a) Compilation

23. Which of the following is an example of an input device?
a) Printer
b) Monitor
c) Keyboard
d) Speaker
Answer: c) Keyboard

24. What does SSL stand for in the context of internet security?
a) Secure Socket Layer
b) Secure Software License
c) System Security Lock
d) Secure System Language
Answer: a) Secure Socket Layer

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25. Which of the following is a programming paradigm that focuses on using a sequence of statements to perform a task?
a) Object-oriented programming
b) Functional programming
c) Procedural programming
d) Event-driven programming
Answer: c) Procedural programming

26. What is the main purpose of an antivirus software?
a) Data encryption
b) File compression
c) Network monitoring
d) Detecting and removing malware
Answer: d) Detecting and removing malware

27. What is the term for a network of interconnected computers that share resources and information?
a) Internet
b) Intranet
c) LAN
d) WAN
Answer: b) Intranet

28. What is the unit of frequency?
a) Volt
b) Ampere
c) Hertz
d) Watt
Answer: c) Hertz

29. What is the primary purpose of a spreadsheet software?
a) Creating presentations
b) Managing databases
c) Performing calculations and data analysis
d) Editing images and graphics
Answer: c) Performing calculations and data analysis

30. Which of the following is a programming language commonly used for developing mobile applications?
b) CSS
c) Swift
d) SQL
Answer: c) Swift

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