The Bohr model of the atom (1913), the one that looks like a solar system, has been replaced by the more accurate Quantum Model of the atom since 1927.
Mass (m) is the measure of a bodies energy content, a measure of how much energy is needed to accelerate an object, and a measure of the extent to which a body curves spacetime. The affects of mass give bodies “gravity” and “weight”. There are a few different ways to measure mass, but all can be understood through the lens of Newton and Einstein. Mass (potential energy) is understood as equivalent to energy (kinetic energy) using the speed of light as a conversion factor (E=mc2.). The fact that mass and energy can be conserved each other, means we can refer to both as simply mass-energy. All mass types can understood as the amount of force needed to accelerate an object (f=ma), except for quantum mass which is the frequency of energy in Planck units (E=hf).
Factoids tagged with "Mass"
Planck units, based on the reduced Planck constant (ℏ) and Planck constant (h), represent the smallest measurable units in the physical universe.
The standard model of particle physics shows how the elementary particles interact via the four forces to create the physical universe.
Blog Posts tagged with "Mass"
“Light” is a particle (photon), that acts like a wave, and is understood as a localized vibration in the electromagnetic field.
We explain the standard model of particle physics in simple terms for non-experts using videos, facts, and bullet points.