Class 6 Answer Key

CHAPTER 1 CLASS 6 SOLUTIONS I. Communication A. Choose the correct option. 1. Prolog 2. Program 3.Machine 4.ALGOL 5.(Second Generation) B. Write T for True statements and F for False statements. 1. True 2. False 3. False 4. True 5. False C. Answer the following questions in short. 1. What is a program? Ans: A program consists of instructions that are written using a specific programming language. i.e. Instructions- Program- Software 2. What are mnemonics? Ans: Assembly language programs make use of mnemonics in place of 0’s and 1’s. These mnemonics are abbreviations used for performing tasks 3. What is programming? Ans: Programming is the process of creating a set of instructions that tells a computer how to input, process, and output data. 4. Define Software. Ans: Software is a collection of instructions and data that tell a computer how to work. This is in contrast to physical hardware, from which the system is built and actually performs the work. 5. Write the names of any four third-generation languages. Ans: FORTRAN, BASIC, Pascal and the C-family This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation. YEP 1

D. Answer the following questions. 1. What is the difference between a Compiler and an Interpreter? Ans: A compiler is a computer program that translates programming code written in a higher- level languages into machine language. A compiler is language-specific, it means that most of the higher-level language have their dedicated compiler. For example, if you are writing a program in C++ then you need a C++ compiler to convert the C++ code into machine language. A compiler scans the whole code and coverts the code in one go whereas An interpreter is a computer program that translates programming code written in a higher- level language into machine language. Like Compiler, the interpreter is also language- specific, it means that most of the higher-level languages have their dedicated interpreter. For example, if you are writing a program in Ruby, then you need its interpreter. An interpreter scans the programming code line by line. 2. How are higher-level languages different from lower-level languages? Ans: The main difference between high level language and low level language is that, Programmers can easily understand or interpret or compile the high level language in comparison of machine. High level language is less memory efficient. Low level language is high memory efficient. 3. How is assembly language different from machine language? Ans: A computer can directly process the instruction written in the machine language. Machine language is also called the lower-level language whereas An assembly language is a lower- level language used for a particular kind of processors. This means that programs written in assembly language can run on a specific computer and not on every computer. 4. Explain in detail the benefits of learning programming. Ans: Benefits of Learning Programming Programming Develops Logical Thinking Programming demands solving complex problems. In programming, we learn how to divide a complex problem into small units and how these smaller problems can be solved. This approach helps us in the development of logical abilities. Enhances Creativity Programming is all about creating something new from scratch. This involves creative thinking. 2 YEP

Promotes Analytical Thinking The first step towards solving a problem is to analyse it. The fundamental purpose of programming is to understand complex problems and to create easy solutions to solve them. This requires a complete analysis of the problem in hand. Resilience Programming involves writing, testing, and executing the code. All this promotes resilience among students. Which further helps them in facing new challenges with confidence. 5. Is there any similarity between the fourth and fifth-generation languages? Write reasons in support of your answer. Ans: Yes, Both are High-Level Language II. Critical Thinking A. Which one of the languages given in the table below are not third or fourth- generation programming languages. Identify and put a cross on each. Ans: Mercury YEP 3

CHAPTER 2 CLASS 6 SOLUTIONS I. Communication A. Fill in the Blanks. 1. Slides 2. Screen Recording 3. Storage 4. Collate 5. Smart Lookup B. Write T for True statements and F for False statements. 1. False 2. True 3. True 4. False 5. False C. Answer the following questions in short. 1. Write the names of the components that can be added to slides. Ans: Text, Picture, Audio, Video, Links etc 2. Name the tab that is used for inserting video files in Powerpoint. Ans: Insert tab 3. Name the button used to stop the recording. Ans: Stop Button 4. Name the search engine used by Smart Lookup for searching for information on the internet. Ans: Microsoft’s Bing D. Answer the following questions. 1. What is the use of Photo album feature in PowerPoint 2016? Ans: The Photo Album feature in PowerPoint helps you to select the photographs from your entire collection. We can collate all the pictures in the Photo Album for easy access while making a presentation. 2. What is the use of Ink equation in PowerPoint 2016? 4 YEP This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation.

Ans: Using the Ink Equations feature, you can easily add math equations to your presentation. Powerpoint converts the the equation you write using touch screen or mouse, into text. 3. Write the steps Moving Videos on a Slide. Ans: To move the video on the slide: Select the video, and then do either of the following: Step 1: Drag the video to the new location. Smart guide might appear on the slide to help you align the video with other objects. Step 2: Press the arrow keys to move the video by small amounts. 4. Write the steps to insert video clips to a presentation. Ans: To insert a video clip onto a slide Step 1: Click on the Insert Video button shown in the content placeholder to display the Insert Video window. On any slide, on the Insert tab, in the Media group, click the Insert Video button, and then do either of the following: Step 2: Click Online Video to open the Insert Video window. Step 3: In the Insert Video window, click the video source that you want to insert, and then follow the process to insert a video from the selected source. Step 4: Click Video on My PC to open the Insert Video dialog box. In the Insert Video dialog box, browse to and select the video file, and then click the Insert button. II. Critical Thinking 1. Aman wants to give a presentation in his school about how water, a valuable resource, is still being wasted; he wants to create a photo album and to add it to the presentation. Which tool should Aman use to create a photo album? Ans: Insert 2. Prisha has recorded a video showing the culture of her native state. After adding the video, she realised that its size is too big. Prisha wants to reduce the size of the video. Help Prisha in reducing the size of the video. Ans: On the Format tool tab, in the Size group, set a specific Video Height or Video Width, and then press Enter to change the settings. YEP 5

CHAPTER 3 CLASS 6 SOLUTIONS I. Communication A. Fill in the Blanks. 1. Sum 2. Function 3. Range 4. Auto sum 5. Undo B. Write T for True statements and F for False statements. 1. False 2. True 3. True 4. True 5. False C. Answer the following questions in short. 1. What is the function of the END key? Ans: In case, if the Scroll Lock key is on, pressing END key, will select the cell in the lower right corner of the active worksheet. 2. What is the function of the HOME key? Ans: Pressing the HOME key will activate the first visible row in the worksheet. 3. What is the difference between Page Up and Page down key? Ans: We can move one screen down by pressing the PAGE DOWN key whereas We can move one screen up by pressing the PAGE UP key. 4. Define Functions? Ans: Functions are pre-designed formulas in Excel to perform simple and complex calculations. 5. What is the function of CTRL+SHIFT+END key combination? Ans: The combination of CTRL+SHIFT+END highlights all text from the current position to the end of the text or page D. Answer the following questions. 1. What is the difference between Delete and Backspace key? 6 YEP This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation.

Ans: Delete removes the cell contents (data and formulas) from selected cells without affecting cell formats or comments. It deletes the characters to the right side of the insertion point. Whereas, The Backspace key enables you to delete the active cell content. By turning on the edit mode, we can delete character(s) to the left of the insertion point. 2. Write a note on Excel. OR Ans: MS Excel is a commonly used Microsoft Office application. It is a spreadsheet program which is used to save and analyse numerical data. MS Excel is a spreadsheet program where one can record data in the form of tables. It is easy to analyse data in an Excel spreadsheet. How to open MS Excel To open MS Excel on your computer, follow the steps given below: Click on Start Then All Programs Next step is to click on MS Office And then finally, choose the MS-Excel option Alternatively, you can also click on the Start button and type MS Excel in the search option available. 3. What are Labels? Ans: In Microsoft Excel, a label is number or vlaue text within a cell. 4. Write a note on Auto Sum features. Ans: AutoSum is a function that adds together a range of cells and displays the total in the cell below the selected range. For example, if you wanted to add the values of cells between A1 and A5, highlight cells A1 through A5 and click the AutoSum button (shown right) 5. What is the significance of the Auto-Fill feature? Ans: Autofill feature of MS Excel helps us to simplify the process of entering representative data. For example, column headings are often the months of the year or the days of the week. To simplify entering repetitive or sequential lists of information, Excel has a tool called Autofill. II. Critical Thinking This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation. YEP 7

A. Understand and answer the following questions. 1. Aashna wants to calculate average marks scored by her in five subjects. Which formula Aashna should use to find the average marks. Ans: Average 2. The teacher asks Abhinav to create a list of all the students in his class. There are total thirty-four students in his class. Abhinav wants to know the number of values entered by him in the worksheet. Which formula Abhinav should use to find the count of records entered in the worksheet. Ans: Auto Sum 3. Abhay is trying to create a timetable for self-study. He does not want to type the name of all the days in the worksheet. He is looking for a tool that can help him in adding the names automatically. Which tool Abhay should use to create the list. Ans: Autofill 8 YEP This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation.

CHAPTER 4 CLASS 6 SOLUTIONS I. Communication A. Choose the correct answer. 1. = 2.<= 3.& 4.$ 5.F2 B. Write T for True statements and F for False statements. 1. False 2. False 3. False 4. True 5. True C. Answer the following questions in short. 1. How many comparison operators are there in Excel? Ans: Six 2. What is cell reference? Ans: The cell address in the formula bar is known as the cell reference. 3. Write the ways by which you can edit the content of a cell. Ans: Press F2, Double-click the cell, Use the formula bar to click anywhere inside the formula text. 4. Write any two rules that are used for entering a formula in a cell. Ans: 1. Select the cell in which you want to enter the formula. 2. Type an equal sign (=) to tell Excel that you’re entering a formula. 5. How many types of cell references are there in Excel? Ans: Three D. Answer the following in detail. 1. What is cell reference? Mention its types. This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation. YEP 9

Ans: The cell address in the formula bar is known as the cell reference. With cell reference, you can use the data in different parts of the Worksheet. We can refer a cell with its address. This means that the cell address in the formula is known as the cell reference. There are three types of cell references: Absolute reference, Mixed reference, relative reference 2. What is Absolute reference? Explain with the help of an example. Ans: When you want that even after copying and pasting a formula in another cell, the address of the cells in the formula bar should not change. This can be achieved using Absolute reference. To make absolute reference work of, add dollar ($) sign before the column and row number. Let us calculate the use of Absolute reference with the same data. Step 1: Select the cell C11, change the formula in the address bar to =SUM ($C3: $C10). Step 2: Select cell C11 and click on the Copy button in the Clipboard group. Step 3: Select cell D11 and select the Paste button from the Clipboard group. Observe the values in the address bar. We can see that the cell reference is still C3 to C10. 3. What are the various rules to enter formulas in a cell? Ans: Rules for entering formulas in cells are given below: Select the cell in which you want to enter the formula. Type an equal sign ( =) to tell Excel that you’re entering a formula. Type the formula’s operands and operators. Press Enter to confirm the formula. 4. What are functions? What are the different rules for entering functions? Ans: Functions are predesigned formulas in Excel to perform simple and complex calculations. Rules to Enter a Function All Excel functions must begin with = sign. Function name must be a valid Excel name. E.g., SUM, AVERAGE. Function name must be followed by opening and closing parenthesis. Parenthesis contain arguments within it. E.g., =SUM (A1:AS). 5. How cell reference can be used in another Worksheet? 10 YEP This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation.

Ans: Refer to the topic and fig 4.7 II. Critical Thinking 1. Avneet has created a worksheet in which he has stored runs scored by each Cricket player and has calculated the average runs scored by each player. He wants to copy the data along with the formula and paste it into another worksheet. Help Avneet in figuring out the cell reference he should use to perform the task. Ans: Using Copy-Paste Option 2. Namish has prepared a formula to calculate total discount earned on purchase of different items. He wants to copy and paste this formula in different cells of the worksheet. Suggest Namish which kind of cell reference he should use. Ans: Using Copy-Paste Option This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation. YEP 11

CHAPTER 5 CLASS 6 SOLUTIONS I. Communication A. Choose the correct answers from the given options. 1. b 2. c 3. c 4. a B. Write T for True statements and F for False statements. 1. False 2. True 3. True 4. False 5. True C. Answer the following questions in short. 1. Define Computational Thinking. Ans: Computational thinking is a problem-solving procedure which helps the user to understand and interpret problems. 2. Define Analysis. Ans: Analysis involves a detailed examination of all the elements or structure of the problem in front. 3. Explain Abstraction. Ans: Abstraction is the way that makes a problem easier to think about by eliminating the necessary details. 4. Do you think Surbhi was able to complete the list of hobbies? Ans: Yes, Surbhi was able to list down hobbies. D. Answer the following questions 1. Explain the process of Decomposition with an example. Ans: Decomposition is the breaking up of the problem to manageable and understandable portions. When a problem is broken down into parts, it makes getting at the solution easier 12 YEP This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation.

in a step-by-step way. For E.g. Surbhi first goes through the list and tries to club similar hobbies and the different ones in two separate columns. This helps her see that she doesn’t choose the same hobbies by mistake. While doing this, she also keeps note of the hobbies that the class had participated in last year. This step is decomposition. 2. What is pattern recognition? Give four examples. Ans: A pattern is a repeated design or idea. We can observe patterns in many things around us, like, prints in clothes, prints in wallpapers etc,. Pattern recognition is an important step in computational thinking since this step will help the user reduce time in searching for a solution to the problem. Examples are Computer vision, Finger print identification, Radar signal classification/analysis, Speech recognition. 3. Define Algorithm with an example. Ans: It is a step-by-step procedure for solving a problem. A flowchart can also be defined as a pictorial representation of an algorithm. This means you can convert an algorithm into a flow chart. It is based on a sequence of specified actions which is arrived at after several deliberations and trials. 4. List the importance of Computational Thinking. Ans: Computational Thinking Involves: 1. Breaking down a problem to logical subparts. 2. Application of general concepts on broken problems. 3. Looking for similar patterns in the problem. 4. Identifying relevant details and omitting the unnecessary ones. 5. Following an algorithm to arrive at decisions and creating a correct solution. II. Critical Thinking A. What comes next? 1. Which patterned block will come in the fourth block? B 2. Which is the correct net to form the given cube? A This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation. YEP 13

3. Which number should be placed in the empty triangle? 3 14 YEP This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation.

CHAPTER 6 CLASS 6 SOLUTIONS I. Communication A. Fill in the blanks. 1.Two 2.February 3.Modules 4.Command 5. Open Source Foundation B. Write T for True statements and F for False statements. 1.True 2. True 3.True 4.False 5.False C. Answer the following questions in short. 1. Name some of the Programing languages. Ans: Python, Java, C++, HTML 2. Write a brief note on Python history Ans: Python was conceptualized by Guido Van Rosum in late 1980s as a successor to ABC programming language. Python’s forst version 0.9 was released in Feb,1992. Today Python is one of the most popular progrmming languagaes in the world. 3. Name the website from which we can download Python. Ans: www.python.org 4. Explain how the Python interactive mode can be used as a calculator. Ans: The Python Interactive mode displays the output of a command instantly. All you need to do is type numbers with opreators like +,-,* after the prompt(>>>) and press the Enter key it will display the result. 5. How many interfaces does Python provide for writing the code? Name them. Ans: Python provides two different modes for writing programs. The two different modes that programmers can use to write Python programs are: This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation. YEP 15

1. Interactive Mode 2. Script Mode D. Answer the following questions. 1. Explain any three features of the Python programming language. Ans: Features of Python I. Easy Syntax Syntax of Python language is simple, short and easy to understand. II. Open Source Python is an Open-Source programming language, managed by Open-Source Foundation. This means that anyone who is well versed with Python can create new programs and add them to the available Python libraries. III. Python is Free Python is freely available on the internet. This means that you don’t need to buy expensive licenses for creating apps with Python. You can easily download the latest Python version from www.python. org. 2. Write a note on the history and development of Python. Ans: Python stands as one of the world’s most popular programming languages today, but it isn’t exactly a new programming language. It was conceptualised by Guido van Rossum in the late 1980s, as a successor to the ABC programming language. This programming language was designed to be simple and easy to learn. Rossum started working on the development of Python and released it in 1980. It was named after the British TV show Monty Python’s Flying Circus. Python first version 0.9 was released in February of 1992. I. 1980 Python Programming Language laid its foundation. II. 1992 The First version of Python programming language was released at CWI in the Netherlands. III. 1994 Python 1.0 version was released with new features such as lambda, map etc. programming language laid its foundation. 3. 2000 Python 2.0 version got released with several improvements. 16 YEP This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation.

4. 2008 Python 3.0 version was introduced to help programmers to develop projects easily. 5. Write a note on Python IDLE. Ans: The Python IDLE allows us to perform different tasks like saving, opening, debugging, configuring IDLE settings etc. Python provides two different modes for writing programs. 6. Write down the steps to start Python IDLE. Ans: Starting Python IDLE After successfully installing Python, to open the Python interface, follow the given steps: I. To start Python IDLE (Integrated Development Environment), click on the start button. II. Click on All apps and scroll down to the Python folder and select the IDLE option. III. This will open the Python IDLE. This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation. YEP 17

CHAPTER 7 CLASS 6 SOLUTIONS I. Communication A. Fill in the blanks. 1. Tags 2. Attributes 3. Empty 4. Markup 5. Hypertext B. Write T for True statements and F for False statements. 1. True 2. True 3. True 4. False 5. True C. Answer the following questions. 1. What is a markup language? Ans: A Markup language is different from any other programming language as this language is only used for formatting text-based document wherein you can also embed videos and sound. 2. Explain the features of HTML language. Ans: Features of HTML I. HTML is used to create webpages that can have content like text, pictures, sounds, videos in it. II. HTML has no. of tags that are easy to learn and work with. III. HTML is a portable language, which means pages developed with HTML can be used with different operating systems like Mac, Windows and Linux. IV. Tags in HTML can be used to enhance your web browsing experience. V. HTML has different tags that can be used to add and modify different components of the web page. 18 YEP This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation.

3. Explain the different attributes of <Font> tag. Ans: Font Tag The Font tag in HTML is used to change the style of the text. Font tag is a container tag and has different attributes attached to it. These attributes, along with the Font tag, can be used to add additional features to the text. Syntax: <Font attribute= “Value”> Attribute of Font Tag: Face: The Face attribute is used to change the Font style of the text. Syntax: <Font Face= “Style” >Text</Font> Observe the output of the above given code and check the difference in the font style. Size : The second important property of the Font tag is the Size attribute. This attribute is used to change the size of the text. Syntax: <Font Size=”Value”>Text</Font> 4. Explain the attributes of <IMG> tag. Ans: The <IMG> tag in HTML is used for adding images to the webpage. The SRC attribute is used along with the <IMG>tag. The <SRC> tag is the ‘source’ tag that defines the path and name of the image that is to be added to the webpage. Syntax: <IMG SRC= “Path/Name of image file”> Other attributes of <IMG> tag Height The height attribute is used to define the height of an image in the web page. The value of the image height can be defined in percentage or in pixels. Width YEP 19

The height attribute is used to define the width of an image in the web page. The value of the image width can be defined in percentage or in pixels. SRC The SRC attribute is used to add the image to the web page. This can be done by specifying the image path. 5. Write down the steps to view the output of HTML code in a browser. Ans: <body> <title>This page contains an image</title> <head> <h1>My web page</h1> <img src=”myimage.png” border=”1”> <html> II. Critical Thinking 1. Observer the HTML code given below. Correct the sequence of the statements and rewrite the correct code. Ans: <body> <title>This page contains an image</title> <head> <h1>My web page</h1> <img src=”myimage.png” border=”1”> <html> 20 YEP

CHAPTER 8 CLASS 6 SOLUTIONS I. Communication A. Fill in the blanks. 1. Google Maps 2. Natural Language Processing. 3. Computer vision 4. algorithms 5. chat-bots B. Write T for True statements and F for False statements. 1. True 2. False 3. True 4. True 5. False C. Answer the following questions. 1. Write any two applications of AI in everyday life. Ans: Gmail and Google search 2. What is Machine Learning? Ans: Machine learning is a field which deals with building technology that can be used to program machines in a manner that the machines can learn independently. 3. What is NLP? Name a few popular apps that make use of NLP. Ans: Communication is a two-way system where the speaker and listener should use one common language that is understood by both. The machine can easily interpret these commands with the help of NLP. Alexa, Google Assistant and Apple Siri are some AI- based applications that use NLP for communication. 4. Explain the use of AI in Google search. Ans: Google is a Search Engine widely used for searching information on the internet. While entering the text in the search box, you must have observed that you get to see some search related suggestions. Google Search Engine makes use of AI for suggesting relevant search topics. This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation. YEP 21

5. What is Computer vision? Ans: Computer vision is a field that deals with the idea of computers replicating human vision. This technology is used to attract computer visual information from images and videos. 22 YEP

CHAPTER 9 CLASS 6 SOLUTIONS I. Communication A. Fill in the blanks. 1.Rectangle 2.Freehand 3.Similar Selection 4. Cropping 5. Smart Patch B. Write T for True statements and F for False statements. 1. False 2.True 3.True 4.False 5.False C. Multiple choice questions. 1. Gradient 2.Shift 3.Cropping 4.Smart Patch 5. D. Answer the following questions. 1. What is the significance of Selection tools in Krita? Ans: The selection tool is used when you want to work on a specific area of an image. Using selections tools, you can select a particular area in the image and modify that image area. There are three different selection tools in Krita. Rectangular selection tool Outline selection tool Similar colour selection tool 2. Explain the utility of Outline selection tool. Ans: Outline Selection Tool This is an attempt to help teachers with Answer key. The teachers have the discretion to choose answers and their formation. YEP 23

The Outline Selection tool works as a freehand selection tool. This tool is useful when you want to select smooth edges and curve of an image. Follow these steps to select a part of the image using the Outline Selection Tool. Step 1: Open any image. Step 2: Select the Outline Selection Tool on the Tools panel. Step 3: Press the left mouse button and drag around the part of the image to be selected. This will mark the selection. Step 4: Release the mouse at the endpoint. Step 5: Release the mouse button. Step 6: Select the Gradient tool from the Tools panel. Step 7: Click within the selected area, press the left mouse Online Selection Tool button and drag. 3. What is the difference between the Cropping tool and Smart Patch tool? Ans: The Cropping tool is used to select an area in the image that you want to remove and edit separately, whereas The Smart Patch tool is used to remove unwanted objects from an image. 4. Explain the utility of the Clone tool in Krita. Ans: The clone brush is a brush engine that allows you to paint with a duplication of a section of a paint-layer. This is useful in manipulation of photos and textures. You have to select a source and then you can paint to copy or clone the source to a different area. II. Critical Thinking 1. Abhinav wants to add a gradient to an image. He wants to add a gradient to the elements of the image that has a blue colour. Which tool Abhinav should use to add a gradient effect to the image. Ans: Outline selection tool 2. Aashna wants to take out her picture from a group photo. Suggest a tool that Aashna can use for the same. Ans: Smart Patch 24 YEP