D.N.D. SCHOOL

Motion Formulas: 1. Distance = Speed × Time (d = s × t) 2. Speed = Distance / Time (s = d / t) 3. Velocity = Displacement / Time (v = Δx / t) 4. Acceleration = Change in Velocity / Time (a = Δv / t) 5. Force = Mass × Acceleration (F = m × a) 6. Momentum = Mass × Velocity (p = m × v) 7. Kinetic Energy = (1/2) × Mass × Velocity^2 (KE = (1/2) × m × v^2) 8. Potential Energy = Mass × Acceleration Due to Gravity × Height (PE = m × g × h) Sound Formulas: 1. Speed of Sound = 343 m/s (at room temperature and atmospheric pressure) 2. Frequency = Number of Oscillations / Time (f = n / t) 3. Wavelength = Speed of Sound / Frequency (λ = v / f) 4. Amplitude = Maximum Displacement from Equilibrium (A = Δx_max) 5. Intensity = Power / Area (I = P / A) 6. Decibel Level = 10 × log(Intensity / Reference Intensity) (dB = 10 × log(I / I_ref)) Gravitation Formulas: 1. Universal Law of Gravitation: F = G × (m1 × m2) / r^2     - F: gravitational force     - G: gravitational constant (6.67408...

_Q1: What is an electronic spreadsheet?_ A1: An electronic spreadsheet is a computer program that allows users to store, organize, and analyze data in a table format. _Q2: What is the most commonly used electronic spreadsheet software?_ A2: Microsoft Excel. _Q3: What is a cell in an electronic spreadsheet?_ A3: A cell is the basic unit of data storage in an electronic spreadsheet, represented by a unique address (e.g., A1, B2, C3, etc.). _Q4: What is a formula in an electronic spreadsheet?_ A4: A formula is an equation that performs calculations on data in a spreadsheet, using operators (e.g., +, -, *, /) and cell references. _Q5: What is the purpose of formatting cells in an electronic spreadsheet?_ A5: Formatting cells helps to present data in a clear and organized manner, using features such as font, color, alignment, and number formatting. _Q6: How do you insert a new row or column in an electronic spreadsheet?_ A6: You can insert a new row or column by selecting the entire row or ...

Q1: What is an electronic spreadsheet? A1: An electronic spreadsheet is a computer program that allows users to store, organize, and analyze data in a table format. Q2: What is OOo Calc? A2: OOo Calc is a free and open-source electronic spreadsheet program that is part of the suite. Q3: What is a cell in OOo Calc? A3: A cell is the basic unit of data storage in OOo Calc, represented by a rectangular box where data can be entered. Q4: What is a range in OOo Calc? A4: A range is a group of cells that can be selected and manipulated together in OOo Calc. Q5: How do you select a cell in OOo Calc? A5: You can select a cell in OOo Calc by clicking on it with the mouse pointer. Q6: What is the purpose of the formula bar in OOo Calc? A6: The formula bar is used to enter and edit formulas and functions in OOo Calc. Q7: What is the difference between relative and absolute referencing in OOo Calc? A7: Relative referencing refers to a cell's location relative to the current cell, while absolut...

Q.1. What is a cell and how is it referred in OOo calc? Ans. A cell is the basic unit of data storage in a spreadsheet. In OOo Calc, a cell is referred to by its unique address, consisting of a column letter and a row number, e.g., A1, B2, C3, etc. Q.2. What do you mean by a range of cells? Ans. A range of cells refers to a group of adjacent cells in a spreadsheet, specified by the address of the top-left cell and the bottom-right cell, separated by a colon (:). Example: A1:C5, where A1 is the top-left cell and C5 is the bottom-right cell. Q.3. What is the difference between a worksheet and a workbook? Ans. A _worksheet_ is a single spreadsheet within a workbook, where you can enter and manipulate data. A _workbook_ is a collection of one or more worksheets, often used to organize related data and calculations. Q.4. Why do you freeze some rows /columns in a worksheet? Ans. You freeze rows or columns in a worksheet to keep them visible on the screen while scrolling through the rest of t...

Geography Chapter 1: India - Size and Location Question: What is the total area of India? Answer: India has a total area of approximately 3.287 million square kilometers. Question: What are the latitudinal and longitudinal extent of India? Answer: India extends from about 8°4'N to 37°6'N latitude and from 68°7'E to 97°25'E longitude. Question: Which two major seas lie to the east and west of India? Answer: The Bay of Bengal lies to the east, and the Arabian Sea lies to the west. Question: How does India's location affect its climate? Answer: India's location influences its climate through the monsoon winds, which bring seasonal rains, and its varied latitudes which create different climatic zones. Question: What is the significance of the Tropic of Cancer in India's geography? Answer: The Tropic of Cancer divides India into two halves, impacting the climate and determining the location of the tropical zone. Question: Which countries share borders with India?...

Civics Chapter 1: What is Democracy? Why Democracy? Question: What is democracy? Answer: Democracy is a system of government where the people exercise power by voting and electing representatives to make decisions on their behalf. Question: Why is democracy considered important? Answer: Democracy is important because it ensures that the power rests with the people, promotes freedom and equality, and allows citizens to have a say in how they are governed. Question: What are the two main types of democracy? Answer: The two main types are direct democracy, where citizens directly participate in decision-making, and representative democracy, where citizens elect representatives to make decisions on their behalf. Question: How does democracy differ from autocracy? Answer: In democracy, power is vested in the people and exercised through elected representatives, whereas, in autocracy, power is concentrated in the hands of a single ruler or a small group. Question: What role do elections play...