General physics

General physics

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

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General physics

buoyancy

Physics; General physics

A force exerted by a liquid, gas or other fluid, that opposes an object's weight as a result of the decreased weight of the object when measures in liquid.

boiling

Physics; General physics

A state of liquid at boiling point temperature, maximum vapor pressure is equal the external pressure around that liquid.

brightness

Physics; General physics

The brightness of light source such as sun, stars, etc., equal candelas per unit area.

anti-matter

Physics; General physics

The ideal matter contains with the anti-particles such as anti-hydrogen contains with an anti-proton and a positron.

ammeter

Physics; General physics

Device used in measuring the direct current. The needle on the panel will revolve when the current pass through.

ampere-hour

Physics; General physics

The amount of electric when current 1 ampere flow through the conductor within 1 hour, equal 3600 coulombs.

annihilation radiation

Physics; General physics

The radiation emitted from colliding between a particle and its anti-particle, such gamma ray will emit in opposite direction when electron collides with positron.