General physics

General physics

Terms realting to physics that are not fit for other subcategories.

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General physics

Newton’s third law

Physics; General physics

To every action, there is an equal and opposite reaction. If an object A exerts a force on another object B , B will exert on A a force equal in magnitude and opposite in direction to the ...

node

Physics; General physics

The points on a standing wave where total destructive interference causes the medium to remain fixed at its equilibrium position.

The reaction force of the ground, a table, etc., when an object is placed upon it. The normal force is a direct consequence of Newton’s Third Law: when an object is placed on the ground, the ground ...

optics

Physics; General physics

The study of the properties of visible light, i.e., the portion of the electromagnetic spectrum with wavelengths between 360 and 780 nm (1 nm = 1 × 10 -9 m/s).

orbit

Physics; General physics

When an object is held in circular motion about a massive body, like a planet or a sun, due to the force of gravity, that object is said to be in orbit. Objects in orbit are in perpetual free fall, ...