Change of State
A snowman, glass of water and steam might look very different but they are made of the same stuff! Just like any substance, water can exist in three different forms, […]
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A snowman, glass of water and steam might look very different but they are made of the same stuff! Just like any substance, water can exist in three different forms, […]
» Read moreThe second law of thermodynamics states that the entropy of an isolated system never decreases because isolated systems spontaneously evolve towards thermodynamic equilibrium—the state of maximum entropy. Equivalently, perpetual motion […]
» Read moreSound wave is one of the most recognizable characters from the original Transformers line. He had an alternate mode – a microcassette recorder – and possessed a distinctive monotone, computerized […]
» Read moreSound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing. Sound also travels through […]
» Read moreSpeed Of Sound The speed of sound is the distance travelled during a unit of time by a sound wave propagating through an elastic medium. In dry air at 20 […]
» Read moreStatic Electricity Static electricity is an excess of electric charge trapped on the surface of an object. The charge remains until it is allowed to escape to an object with […]
» Read moreElectric current is the rate of charge flow past a given point in an electric circuit, measured in Coulombs/second which is named Amperes. In most DC electric circuits, it can […]
» Read moreEnergy exists in various forms such as mechanical energy, heat energy, chemical energy, electrical energy, light energy and nuclear energy. According to the law of conservation of energy, energy can […]
» Read moreMagnetic Effect of Electric Current When electric current flows through a wire wound around an iron bar, the bar behaves like a magnet. This magnet is called an electromagnet. An […]
» Read moreMagnetic Material & Terrestrial Magnetism Earth’s magnetic field (also known as the geomagnetic field) is the magnetic field that extends from the Earth’s inner core to where it meets the […]
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