Mass, in kilograms, times acceleration, in meters per second squared, is force unit {force measurement} in newtons (N), in MKS system. Mass, in grams, times acceleration, in centimeters per second squared, is force unit {dyne} in CGS system.
Mass times gravity acceleration is weight. In English measure, weight measurements use different systems, depending on mass range.
avoirdupois
In avoirdupois units {avoirdupois}, 28.35 grams is 1 ounce {avoirdupois ounce}. Avoirdupois weights include 16 avoirdupois ounces {avoirdupois pound} {pound, weight}, 100 avoirdupois pounds {hundredweight}, 2000 avoirdupois pounds {ton, weight}, 1/16 avoirdupois ounces {dram}, 1/7000 avoirdupois pounds {grain, mass unit}, 100 avoirdupois pounds {cental}, 100 avoirdupois pounds or 112 avoirdupois pounds or 100 kilograms {quintal}, and 2240 avoirdupois pounds {long ton}.
apothecary
Apothecary weights {apothecaries measure} depend on 1 grain {apothecary grain}. Apothecary weights include 20 apothecary grains {apothecary scruple}, 3 apothecary scruples {apothecary dram}, 8 apothecary drams {apothecary ounce}, 12 apothecary ounces {apothecary pound}. Apothecary pound has same weight as troy pound.
troy
Troy weights, based on 1 grain {troy grain}, are for weighing gold, silver, and jewels. Troy weights include 24 troy grains {troy pennyweight}, 20 troy pennyweight {troy ounce}, and 12 troy ounce {troy pound}.
electromagnetism
Electric force is in newtons. Magnetic force has units {unit pole}.
Physical Sciences>Physics>Measurement>Kinds>Mass
5-Physics-Measurement-Kinds-Mass
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Date Modified: 2022.0224