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Physics

The Photoelectric Effect, Photons and Planck’s Equation

March 14, 2021 thescienceandmathszone Leave a comment

The Photoelectric Effect When electromagnetic radiation, such as light, hits the surface of a metal electrons are emitted. These electrons…

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Posted in: Physics, Quantum Filed under: Einstein's Photoelectric equation, photon, physics, Planck's constant, Planck's equation, quantum, threshold frequency, work function

Pressure and Density

January 27, 2021 thescienceandmathszone Leave a comment

Pressure Pressure – force per unit area. The following equation can be used to calculate pressure (P): Where F is…

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Posted in: Mechanics, Physics Filed under: area, density, mass, mechanics, physics, pressure, volume, weight

Wave Speed

January 24, 2021 thescienceandmathszone Leave a comment

Wave Speed – the distance a wave travels per unit time. From kinematics we know that speed is equal to…

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Posted in: Physics, Waves Filed under: Electromagnetic Spectrum, frequency, period, physics, speed, Wave, wave speed, wavelength, Waves

Transverse and Longitudinal Waves

January 17, 2021 thescienceandmathszone Leave a comment

Transverse Waves For transverse waves the displacement of the particles is perpendicular to the direction of wave travel. In other…

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Posted in: Physics, Waves Filed under: compression, longitudinal, longitudinal wave, transverse wave, Wave

The Electromagnetic Spectrum

January 8, 2021 thescienceandmathszone Leave a comment

Electromagnetic Waves Electromagnetic waves are transverse waves with different frequencies that make up the electromagnetic spectrum. The waves are created…

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Posted in: Physics, Waves Filed under: Electromagnetic, Electromagnetic Spectrum, Gamma, Infrared, Microwaves, Radio Waves, Ultraviolet, Visible Light, Waves, X-ray

Stress, Strain and Young’s Modulus

December 30, 2020 thescienceandmathszone Leave a comment

Stress Stress (σ) – the force per unit cross sectional area applied to an object. From this definition we have…

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Posted in: Mechanics, Physics Filed under: Elastic Deformation, mechanics, physics, Plastic, Stress, Tensile, Young's Modulus

Hooke’s Law

December 29, 2020 thescienceandmathszone Leave a comment

If we plot the elastic deformation of a spring we usually get a graph that looks like Graph 1: NOTE:…

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Posted in: Mechanics, Physics Filed under: Elastic Deformation, Force constant, Hooke's Law, physics, Springs

Elastic and Plastic Deformation

thescienceandmathszone Leave a comment

If a large enough force is applied to a solid object the shape of the object can change. This change…

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Posted in: Mechanics, Physics Filed under: Compressive, Deformation, Elastic, forces, mechanics, physics, Plastic, Tensile

Wave Definitions

November 16, 2020 thescienceandmathszone Leave a comment

Waves are a transfer of energy that can be described as vibrations (or oscillations) about a rest point. Below is…

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Posted in: Physics, Waves Filed under: amplitude, crest, displacement, frequency, peak, period, physics, trough, wavelength, Waves

Kirchhoff’s Laws

November 10, 2020 thescienceandmathszone Leave a comment

Kirchhoff’s First Law Kirchhoff’s first law is a consequence of the conservation of charge and states that: The sum of…

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Posted in: Electricity, Physics Filed under: current, electricity, electromotive force, kirchhoff, physics, potential difference

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