Modern Physics Archive
Vectors
Vectors (or Vector Quantities) are the combination of two scalars. (Two units, each only with a magnitude only.) Direction and Distance are two common scalars, that combine to form Direction, a vector. In order to describe any type of motion […]
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University Physics
General Physics (often referred to as University Physics, and broken into Physics I and II) is the foundation of what I like to call “General Physics” — the first stage of understanding what physics truly is at the highest level. […]
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What is a Vector?
What is a vector? A vector is fundamentally a simple concept used broadly in modern science, (from physics, to virology, mathematics and quantum mechanics). When we first start learning new things, the unknowns make something more complicated than it actually […]
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Generalized Power Law
In electrical engineering, the Power Law (also called the Generalized Power Law or Watt’s Law) is the fundamental relationship between energy transfer, potential difference, and charge flow. The Generalized Power Law Equation The Power Law states that electrical power (P) […]
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Electric Power
Electric Power is the amount of power that is used within an electric circuit, expressed as P, and generally measured in watts (W). In simple terms, it is the rate at which electrical energy is used or transffered. In essence, […]
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Resistivity — The Specific Resistance of a Material
The resistivity of a material is the measure of it’s specific resistance to the flow of electricity, a numerical quantity unique to each material which varies only with temperature. We symbolize resistivity with the Greek letter lowercase rho, ρ, a […]
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The SI Units of Science
SI Units are the standard units we use to describe various quantities found in nature. In order to describe nature at all, especially with mathematics, we must first be able to give numerical values to the phenomena, events, and qualities […]
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Dimensional Analysis
Dimensional Analysis is a technique used in physics, chemistry, engineering, and science in general to track the dimensions of all physical quantities while performing calculations. The purpose of this practice is to ensure our final value is accurate in that […]
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SI Units of Mechanics — Meters, Seconds, Kilograms
The SI Units of Mechanics are a specific subset of SI Units that are used in the physics of Mechanics — the study of forces, momentum, velocity, acceleration, mass and the like that describes the properties of physical objects. In […]
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A black hole is an infinite gravitational collapse within the fabric of spacetime. Space collapses towards what is called a singularity, with an event horizon around the object beyond which is ongoing gravitational collapse. Formation of Black Holes Black holes […]
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