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General physics
Terms realting to physics that are not fit for other subcategories.
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General physics
density
Physics; General physics
A measure of how much matter there is in a certain amount of space. Salt water has a greater density than fresh water.
diffraction
Physics; General physics
The bending of a wave, such as a wave of light, when it goes through a narrow hole or past an edge.
fluorescent lamp
Physics; General physics
A lamp that produces light when electricity is connected to a glass bulb or tube that contains a mixture of gases.
frequency
Physics; General physics
A measure of how often an action or movement is repeated within a certain amount of time.
friction
Physics; General physics
The resistance to movement that occurs when two objects are in contact. Friction slows down a ball that is rolling on grass.
foot-pound
Physics; General physics
A unit used to measure work. One foot-pound is equal to the work or energy needed to lift a one-pound weight.
Foucault
Physics; General physics
French scientist who measured the velocity of light and proved that light moves more slowly in water than in air.