Licchavi Lyceum

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Licchavi Lyceum

Month: December 2025

Laws of Motion

The Laws of Motion were formulated by Sir Isaac Newton in the year 1687. They describe how and why objects move. These laws form the foundation of classical mechanics. 1. Newton’s First Law of Motion (Law of Inertia) Statement: An object remains in its state of rest or of uniform motion in a straight line …

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Octane Number

The octane number indicates a fuel’s resistance to knocking in engines. Higher octane number fuels resist pre-ignition better under compression. Knocking occurs when fuel ignites prematurely in the engine cylinder. Iso-octane is assigned an octane number of 100 as a standard reference. n-Heptane is assigned an octane number of 0 as it ignites easily. The …

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Tests for Detecting Nutrients

To identify the presence of major nutrients such as carbohydrates, proteins, and fats in food samples, specific chemical tests are used. These tests are based on characteristic colour changes when the nutrient reacts with a particular reagent. Such tests help in understanding the composition of food and are widely used in school laboratories, nutrition studies, …

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