Category: Index
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Center of Mass
The center of mass is a concept in physics that describes the average position of an object or system of objects. It is an important concept because it allows us to simplify the description of a system by replacing it with a single point. This single point represents the average location of all the mass…
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Capacitance
Capacitance describes the ability of a device to store electrical energy in the form of an electric charge. Capacitors, which are passive electronic components designed to store electrical energy, are widely used in electronic circuits for various purposes. Basic Understanding of Capacitance Capacitance is defined as the ratio of the electric charge stored in a…
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Buoyancy
Buoyancy is a fundamental concept in fluid mechanics that describes the upward force exerted by a fluid on an object that is partially or completely submerged. This force is responsible for objects appearing to weigh less in fluids and for objects floating or sinking. Basic Understanding of Buoyancy Buoyancy occurs due to the pressure difference…
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Black Holes
Black holes are astronomical objects with an incredibly strong gravitational pull, resulting from a highly compressed mass in a small region of space. They play a significant role in our understanding of the universe, general relativity, and the nature of spacetime. Basic Understanding of Black Holes Black holes form when a massive object, such as…
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Bernoulli’s Equation
Bernoulli’s equation is a fundamental principle in fluid mechanics that describes the behavior of a fluid as it moves through a pipe or over an obstacle. It is named after the Swiss mathematician Daniel Bernoulli who developed the equation in the 18th century. Bernoulli’s equation is widely used in engineering applications, including in the design…
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Quadratic Formula
The quadratic formula gives the solution to a quadratic equation and is written as: where specifies that this equation gives two solutions. One solution, , uses the plus sign in the numerator. The other solution, , uses the negative sign. As a quadratic equation, two solutions are required. This can be two real numbers. However,…
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Quadratic Equation
Quadratic equations are extremely common in physics as many real-world phenomena follow this form. A quadratic equation is one which follows the form: where , , and are real numbers. Most importantly, cannot equal zero or else the equation would be linear. There is no such restriction on and . The solution can be found…
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Atomic Structure
Atomic structure describes the arrangement of subatomic particles within an atom. Understanding atomic structure is essential for comprehending the behavior of atoms, their chemical properties, and their interactions with other atoms. The following figure was created using the hydrogen-cloud Python script. Please see the caption for Copyright and licensing information. Basic Atomic Structure Atoms are…
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Archimedes’ Principle
Archimedes’ Principle is an essential concept in fluid mechanics that relates to the buoyant force acting on a submerged object in a fluid. It was first formulated by the ancient Greek mathematician and physicist Archimedes in the 3rd century BCE. Basic Concept and Statement of Archimedes’ Principle Archimedes’ Principle states that an object submerged in…
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Angular Momentum
Angular momentum describes the rotational motion of objects. It plays a crucial role in understanding the behavior of spinning objects and the conservation laws that govern their interactions. Note: If you’re trying to calculate angular momentum, check out our angular momentum calculators! Definition and Basic Properties Angular momentum, denoted by , is a vector quantity…