Absorption and Emission Spectra
Absorption are produced when atoms absorb energy and create dark lines or gaps in the spectrum. Absorption spectra can range from narrow lines to broad bands. Emission spectra are emitted by an atom or compound when electrons transition from a higher energy state to a lower energy state. More ...
The Gravitational Force
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Multiplying Vectors
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Projectile Motion
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Vectors Position and Displacement
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Particle Accelerators
The fundamental process in creating unknown particles is to accelerate known particles, such as protons or electrons, and direct a beam of them toward a target. More ...
The Four Fundamental Forces of the Universe
Despite the apparent complexity within the universe, there are just four basic forces. These forces are responsible for all interactions known to science: from the very small to the very large to those that we experience in our day-to-day lives. More ...
Adding Vectors - Components of Vectors
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Hadrons and Leptons
Particles can be grouped according to what forces they feel between them. Hadrons are particles that feel the strong nuclear force, whereas leptons are particles that do not. More ...
Quarks
Quarks and gluons are the building blocks of protons and neutrons, which in turn are the building blocks of atomic nuclei. They are the elementary particles in the present standard model. More ...
