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Class 8 CBSE worksheet Computer Science Unit 7, Exams of Computer science

Computer science

Worksheet for exam to be solved prior to exam

Typology: Exams

2024/2025

Uploaded on 08/16/2025

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dr-shanti-desai 🇮🇳

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Worksheet on Unit 7: Understanding Augmented Reality and Virtual Reality
A. Fill in the blanks. [5 Marks]
1. Augmented Reality integrates virtual objects with the ______ world.
2. ______ and Snapchat are apps that use Augmented Reality.
3. ______ lets its customers try frames in 3D before buying with the help of
Augmented Reality.
4. In Virtual Reality, users must wear an ______ and headphones to experience it
fully.
5. The most common example of Virtual Reality is a ______.
B. Write T for True and F for False statements. [5 Marks]
1. Augmented Reality cannot be used in the field of education and medical
training. (____)
2. With the help of Augmented Reality, retailers can let their customers try
products before buying. (____)
3. Augmented Reality takes users into the digital world while Virtual Reality adds
digitally made objects to the physical world. (____)
4. In a Virtual Reality-based car racing game, the player feels as if they are driving
the car in real life. (____)
5. The user needs a smartphone to experience Virtual Reality. (____)
C. Choose the correct option. [5 Marks]
1. It refers to everything that exists around us:
o(a) Reality
o(b) Augmented Reality
o(c) Virtual Reality
o(d) None of these
2. A technology that deals with the combination of the real world and computer-
generated data:
o(a) Artificial Intelligence
o(b) Augmented Reality
o(c) Virtual Reality
o(d) None of these
3. Which of these is needed to experience Augmented Reality?
o(a) Augmented Reality
Headset
o(b) Smartphone
o(c) Tablet
o(d) Either (b) or (c)
4. A technology that transports the user into an artificial world which appears real:
o(a) Artificial Intelligence
o(b) Augmented Reality
o(c) Virtual Reality
o(d) None of these
5. In which of these fields can Virtual Reality be used?
o(a) Education
o(b) Gaming
o(c) Tourism
o(d) All of these
D. Match the following. [5 Marks]
Column A Column B
1. Pokémon Go (a) Virtual Reality headset
2. Lenskart (b) Augmented Reality
app
3. Google Street (c) Trying 3D frames
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pf4
pf5
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Partial preview of the text

Download Class 8 CBSE worksheet Computer Science Unit 7 and more Exams Computer science in PDF only on Docsity!

Worksheet on Unit 7: Understanding Augmented Reality and Virtual Reality A. Fill in the blanks. [5 Marks]

  1. Augmented Reality integrates virtual objects with the ______ world.
  2. ______ and Snapchat are apps that use Augmented Reality.
  3. ______ lets its customers try frames in 3D before buying with the help of Augmented Reality.
  4. In Virtual Reality, users must wear an ______ and headphones to experience it fully.
  5. The most common example of Virtual Reality is a ______. B. Write T for True and F for False statements. [5 Marks]
  6. Augmented Reality cannot be used in the field of education and medical training. (____)
  7. With the help of Augmented Reality, retailers can let their customers try products before buying. (____)
  8. Augmented Reality takes users into the digital world while Virtual Reality adds digitally made objects to the physical world. (____)
  9. In a Virtual Reality-based car racing game, the player feels as if they are driving the car in real life. (____)
  10. The user needs a smartphone to experience Virtual Reality. (____) C. Choose the correct option. [5 Marks]
  11. It refers to everything that exists around us: o (a) Reality o (b) Augmented Reality o (c) Virtual Reality o (d) None of these
  12. A technology that deals with the combination of the real world and computer- generated data: o (a) Artificial Intelligence o (b) Augmented Reality o (c) Virtual Reality o (d) None of these
  13. Which of these is needed to experience Augmented Reality? o (a) Augmented Reality Headset o (b) Smartphone o (c) Tablet o (d) Either (b) or (c)
  14. A technology that transports the user into an artificial world which appears real: o (a) Artificial Intelligence o (b) Augmented Reality o (c) Virtual Reality o (d) None of these
  15. In which of these fields can Virtual Reality be used? o (a) Education o (b) Gaming o (c) Tourism o (d) All of these D. Match the following. [5 Marks] Column A Column B
  16. Pokémon Go (a) Virtual Reality headset
  17. Lenskart (b) Augmented Reality app
  18. Google Street (c) Trying 3D frames

View

  1. Oculus Rift (d) Real-time navigation with AR
  2. 3D Movie (e) Example of Virtual Reality E. Answer the following questions. [10 Marks]
  3. What is Augmented Reality? Answer: ___________________________________________________________
  4. Mention two applications of Augmented Reality. Answer: ___________________________________________________________
  5. What is Virtual Reality? Answer: ___________________________________________________________
  6. How is Virtual Reality useful in education? Answer: ___________________________________________________________
  7. How is Augmented Reality different from Virtual Reality? Answer: ___________________________________________________________ F. Differentiate between Augmented Reality and Virtual Reality. [5 Marks] Aspect Augmented Reality Virtual Reality
  8. Definition
  9. Equipment Needed
  10. Example G. Practical Activity (Homework) [Bonus: 5 Marks] Task:  Make a PowerPoint presentation showing the differences between Augmented Reality and Virtual Reality. Include at least 3 slides with images and descriptions.  Present your work in the next computer science class. Worksheet on Unit 7: Understanding Augmented Reality and Virtual Reality A. Fill in the blanks. [5 Marks]
  11. ______ uses computer-generated information to enhance the real world.
  12. ______ is a completely immersive experience that shuts out the physical world.
  13. To experience Virtual Reality, one must use a ______.
  14. ______ is a popular app that uses Augmented Reality to catch digital creatures in the real world.
  15. In Augmented Reality, virtual objects are overlaid on the ______ world. B. State whether the following statements are True or False. [5 Marks]
  16. Virtual Reality allows users to interact with real-world objects. (____)
  17. Augmented Reality is used only in gaming. (____)
  18. Virtual Reality headsets can simulate different environments. (____)
  19. Lenskart uses Virtual Reality for customers to try glasses. (____)
  1. Uses of Augmented Reality in Healthcare: Answer: ___________________________________________________________
  2. Applications of Virtual Reality in Training: Answer: ___________________________________________________________
  3. Future of Augmented Reality: Answer: ___________________________________________________________
  4. Limitations of Virtual Reality: Answer: ___________________________________________________________
  5. Augmented Reality in Shopping: Answer: ___________________________________________________________ G. Differentiate between Augmented Reality and Virtual Reality. [5 Marks] Aspect Augmented Reality Virtual Reality
  6. Definition
  7. Equipment Needed
  8. Example
  9. Experience
  10. Purpose H. Case Study Based Question. [5 Marks] Case Study: John is a medical student who is using a new technology to learn about human anatomy. This technology allows him to see 3D organs overlaid on real human bodies during practice sessions. He can rotate and examine these organs without any physical specimens. Questions:
  11. Which technology is John using — Augmented Reality or Virtual Reality? Answer: ____________________________
  12. Why do you think this technology is useful in medical training? Answer: ____________________________
  13. Mention one other field where this technology can be applied. Answer: ____________________________ I. Practical Activity (Homework) [Bonus: 5 Marks] Task:  Create a collage showing different applications of Augmented Reality and Virtual Reality using cut-outs from magazines or printed images.  Label each application clearly and write a short description for each.  Present your collage in the next class. A. Fill in the blanks. [5 Marks]
  14. The ______ is a global network that connects millions of computers.
  15. A ______ is a software that helps to access information on the Internet.
  16. The first page of a website is called the ______ page.
  17. ______ is used to send and receive electronic messages over the Internet.
  18. The ______ is a unique address used to access a website.

B. State whether the following statements are True or False. [5 Marks]

  1. Internet and World Wide Web are the same. (____)
  2. Social media platforms are examples of Internet services. (____)
  3. A URL is used to identify web pages. (____)
  4. Browsers like Google Chrome and Mozilla Firefox help us access the Internet. (____)
  5. An email address must contain the symbol @. (____) C. Choose the correct answer. [5 Marks]
  6. Which of these is NOT a web browser? o (a) Google Chrome o (b) Microsoft Word o (c) Mozilla Firefox o (d) Safari
  7. Which protocol is used to transfer web pages? o (a) HTTP o (b) FTP o (c) SMTP o (d) IP
  8. Which of these is an example of an email service provider? o (a) YouTube o (b) Gmail o (c) Instagram o (d) WhatsApp o
  9. Which of these is NOT an advantage of the Internet? o (a) Easy communication o (b) Information sharing o (c) Cyberbullying o (d) Online shopping o
  10. A program that protects your computer from viruses is called a: o (a) Antivirus o (b) Browser o (c) Router o (d) Firewall D. Match the following. [5 Marks] Column A Column B
  11. WWW (a) Electronic mail
  12. Email (b) Uniform Resource Locator
  13. URL (c) Social media
  14. Facebook (d) World Wide Web
  15. ISP (e) Internet Service Provider E. Answer in one or two sentences. [10 Marks]
  16. What is the Internet? Answer: ___________________________________________________________
  17. Name two search engines. Answer: ___________________________________________________________
  18. What is a web browser? Answer: ___________________________________________________________
  19. Why is it important to have a strong password for online accounts? Answer: ___________________________________________________________

Worksheet on Unit 8: Internet and Its Uses A. Fill in the blanks. [5 Marks]

  1. The ______ is a collection of interlinked web pages that can be accessed via the Internet.
  2. A ______ is a unique address for a webpage.
  3. Websites use ______ to ensure the security of data transmission.
  4. ______ is a protocol used to send emails over the Internet.
  5. A ______ is used to search for information on the Internet. B. State whether the following statements are True or False. [5 Marks]
  6. HTTPS is more secure than HTTP. (____)
  7. A blog is a personal website where people share their opinions. (____)
  8. URLs are not case-sensitive. (____)
  9. Social media platforms do not use the Internet. (____)
  10. An ISP provides access to the Internet. (____) C. Choose the correct answer. [5 Marks]
  11. Which of these is NOT an Internet service? o (a) Email o (b) Instant Messaging o (c) Word Processing o (d) Social Media
  12. What is the function of a search engine? o (a) Send emails o (b) Browse websites o (c) Search for information online o (d) Download files
  13. Which of these is NOT a search engine? o (a) Bing o (b) Yahoo o (c) Instagram o (d) Google
  14. Which protocol is used to transfer files over the Internet? o (a) FTP o (b) SMTP o (c) HTTP o (d) POP
  15. Which of these helps protect your computer from unauthorized access? o (a) Browser o (b) Antivirus o (c) Firewall o (d) Search Engine D. Match the following. [5 Marks] Column A Column B
  16. HTTP (a) Email
  17. Gmail (b) Web security
  18. ISP (c) File Transfer Protocol
  19. FTP (d) Internet Service Provider
  1. HTTPS (e) Hypertext Transfer Protocol E. Answer in one or two sentences. [10 Marks]
  2. What is a web browser? Answer: ___________________________________________________________
  3. Name two commonly used web browsers. Answer: ___________________________________________________________
  4. What does ISP stand for? Answer: ___________________________________________________________
  5. Why is it important to use HTTPS instead of HTTP? Answer: ___________________________________________________________
  6. Mention one advantage of using the Internet. Answer: ___________________________________________________________ F. Write short notes on the following. [10 Marks]
  7. Blogging: Answer: ___________________________________________________________
  8. Importance of Cybersecurity: Answer: ___________________________________________________________
  9. Social Media and its Impact: Answer: ___________________________________________________________
  10. Uses of the Internet in Education: Answer: ___________________________________________________________
  11. E-commerce: Answer: ___________________________________________________________ G. Differentiate between the following. [5 Marks] Aspect Website Webpage
  12. Definition
  13. Purpose
  14. Example
  15. Address
  16. Nature H. Case Study Based Question. [5 Marks] Case Study: Aman wants to buy a book online. He visits a website, adds the book to his cart, and proceeds to payment. The website uses HTTPS, and Aman enters his credit card details securely. He receives an email confirmation after completing the purchase. Questions:
  17. Which Internet service did Aman use to buy the book? Answer: ____________________________
  18. Why was it safe for Aman to enter his credit card details on this website? Answer: ____________________________
  19. Name the protocol used for securing online transactions. Answer: ____________________________
  1. Bucket Fill Tool (d) Manage parts of an image separately
  2. Scale Tool (e) Resize images E. Answer in one or two sentences. [10 Marks]
  3. What is GIMP used for? Answer: ___________________________________________________________
  4. Name two selection tools in GIMP. Answer: ___________________________________________________________
  5. What is the purpose of using layers in GIMP? Answer: ___________________________________________________________
  6. How can you add text to an image in GIMP? Answer: ___________________________________________________________
  7. Mention one advantage of using GIMP over other image editing software. Answer: ___________________________________________________________ F. Write short notes on the following. [10 Marks]
  8. The Toolbox in GIMP: Answer: ___________________________________________________________
  9. Uses of Layers in GIMP: Answer: ___________________________________________________________
  10. The Paintbrush Tool: Answer: ___________________________________________________________
  11. The Crop Tool: Answer: ___________________________________________________________
  12. Saving and Exporting Files in GIMP: Answer: ___________________________________________________________ G. Differentiate between the following. [5 Marks] Aspect Save Export
  13. Purpose
  14. File Format
  15. Editing Options
  16. Common Extensions
  17. Example H. Case Study Based Question. [5 Marks] Case Study: Neha is designing a greeting card using GIMP. She wants to add a picture, some text, and a border. She also needs to adjust the brightness and crop the image to fit the card. Questions:
  18. Which tool should Neha use to add text? Answer: ____________________________
  1. How can she adjust the brightness of the image? Answer: ____________________________
  2. What is the purpose of using layers in her project? Answer: ____________________________
  3. Which tool will help her crop the image? Answer: ____________________________
  4. What file format should she save her project in if she wants to continue editing it later? Answer: ____________________________ I. Practical Activity (Homework) [Bonus: 5 Marks] Task:  Create a simple poster using GIMP with the following requirements: o A background image. o At least one layer for text. o Use of the Paintbrush Tool for decoration. o Save your work as both .xcf and .png files.  Submit your files in the next class. Worksheet on Unit 9: GIMP (GNU Image Manipulation Program) Class: 7 A. Fill in the blanks. [5 Marks]
  5. GIMP is an open-source ______ software.
  6. The ______ tool is used to select a circular area of an image.
  7. The shortcut key for undoing an action in GIMP is ______ + Z.
  8. ______ allows you to adjust the brightness and contrast of an image.
  9. The ______ format is used to save GIMP files for further editing. B. State whether the following statements are True or False. [5 Marks]
  10. GIMP cannot be used to edit photographs. (____)
  11. The Move Tool in GIMP helps to move layers or selections. (____)
  12. The Eraser Tool can only be used on the background layer. (____)
  13. GIMP allows users to work with multiple layers. (____)
  14. XCF files can be opened only in GIMP. (____) C. Choose the correct answer. [5 Marks]
  15. Which of these is NOT a selection tool in GIMP? o (a) Rectangle Select o (b) Fuzzy Select o (c) Smudge Tool o (d) Free Select
  16. Which file format should you use to save an image for the web? o (a) .xcf o (b) .jpg o (c) .doc o (d) .txt
  17. Which tool is used to remove parts of an image in GIMP? o (a) Crop Tool o (b) Eraser Tool o (c) Move Tool o (d) Text Tool o

Options ______ ______

  1. File Size

____________________________________

______

____________________________________

______

  1. Image Quality

____________________________________

______

____________________________________

______

Compati bility

____________________________________

______

____________________________________

______

H. Case Study Based Question. [5 Marks] Case Study: Ravi wants to create a birthday card for his sister using GIMP. He plans to add a background image, insert text, and draw some stars using the Paintbrush Tool. He also needs to adjust the brightness of the background to make the text more visible. Questions:

  1. Which tool should Ravi use to insert text? Answer: ____________________________
  2. How can Ravi adjust the brightness of the background image? Answer: ____________________________
  3. Which tool will help him draw stars on the card? Answer: ____________________________
  4. How can Ravi save the project to continue editing later? Answer: ____________________________
  5. In which format should he export the card to share it online? Answer: ____________________________ I. Practical Activity (Homework) [Bonus: 5 Marks] Task:  Create a simple flyer using GIMP for a school event with the following requirements: o A background image. o At least two layers for text and decorations. o Use of the Paintbrush Tool for effects. o Save your work as both .xcf and .png files.  Submit your files in the next class.

Combined Worksheet on Unit 7, 8, and 9: Augmented Reality, Internet, and GIMP A. Fill in the Blanks. [10 Marks]

  1. Augmented Reality adds ______ elements to the real world through digital devices.
  2. The ______ is a global network connecting millions of computers.
  3. The ______ tool in GIMP is used to remove unwanted parts of an image.
  4. In Virtual Reality, users wear a ______ to experience a virtual environment.
  5. A ______ is a software used to browse the Internet.
  6. The ______ tool in GIMP allows users to fill selected areas with color or patterns.
  7. ______ is a protocol used for secure data transfer on the Internet.
  8. GIMP files are saved in the ______ format for further editing.
  9. The most common example of Augmented Reality in games is ______.
  10. The ______ tool in GIMP is used to add text to an image. B. State whether the following statements are True or False. [10 Marks]
  11. Virtual Reality integrates digital objects into the real world. (____)
  12. HTTPS is more secure than HTTP for websites. (____)
  13. GIMP is a paid image editing software. (____)
  14. The Fuzzy Select Tool in GIMP is used for freehand drawing. (____)
  15. Augmented Reality can be used in education and healthcare. (____)
  16. An ISP provides access to the Internet. (____)
  17. The Smudge Tool in GIMP can be used to blur parts of an image. (____)
  18. The World Wide Web is the same as the Internet. (____)
  19. In GIMP, the Paintbrush Tool is used to draw freehand lines. (____)
  20. Augmented Reality requires special VR headsets to function. (____) C. Choose the Correct Answer. [10 Marks]
  21. Which app uses Augmented Reality to catch virtual creatures in real environments? o (a) Google Maps o (b) Pokémon Go o (c) Instagram o (d) YouTube
  22. Which protocol is used to transfer web pages securely? o (a) FTP o (b) SMTP o (c) HTTPS o (d) POP
  23. What is the default file extension for saving editable files in GIMP? o (a) .jpg o (b) .png o (c) .xcf o (d) .gif o
  24. Which tool in GIMP is used to resize an image? o (a) Move Tool o (b) Scale Tool o (c) Text Tool o (d) Bucket Fill Tool
  25. Which of these is NOT an Internet service? o (a) Email o (b) Instant Messaging o (c) Word Processing o (d) Social Media
  1. Mention one use of the Fuzzy Select Tool in GIMP. Answer: ___________________________________________________________
  2. How can you save a project in GIMP for future editing? Answer: ___________________________________________________________
  3. Why is it important to use HTTPS while accessing websites? Answer: ___________________________________________________________
  4. Which tool in GIMP is used to add text to an image? Answer: ___________________________________________________________
  5. Give an example of a Virtual Reality application. Answer: ___________________________________________________________ F. Practical Activity (Homework) [Bonus: 5 Marks] Task:  Create a digital poster using GIMP on the topic "Safe Internet Practices."  Include the following: o Use of Augmented Reality in education or gaming. o Importance of Internet safety and using secure websites. o Demonstrate basic tools in GIMP like Text Tool, Paintbrush Tool, and Layers.  Save your work as both .xcf (editable) and .png (final) files.  Submit the files in the next class.