Archimedes' Principle
阿 基米德原则
ā jī mǐ dé yuán zé
This
principle helps explain the buoyancy of an object in a medium,
such as water.
The Principle states that an object that is fully or partially
immersed in a liquid (water)
experiences a buoyant force that is
equal to the weight of the medium (water)
displaced. The equation of the buoyant force
is given as follows
U
= ⍴Vg
where
U = upthrust or buoyant force
⍴ = density of the medium (such as water)
g = acceleration due to gravity
If the weight of the object, W, is greater than the buoyant force, U, the object sinks.
If the weight of the object, W, is less than the buoyant force, U, the object floats.
See also pressure in liquids.
U = upthrust or buoyant force
⍴ = density of the medium (such as water)
g = acceleration due to gravity
If the weight of the object, W, is greater than the buoyant force, U, the object sinks.
If the weight of the object, W, is less than the buoyant force, U, the object floats.
See also pressure in liquids.
Prinsip Archimedes
Prinsip
ini
menghuraikan keapungan suatu jasad / objek dalam suatu
bahantara, umpamanya air.
Prinsip ini menyatakan bahawa sesuatu jasad yang
direndamkan separa atau sepenuhnya dalam suatu cecair
(misalnya air)
akan mengalami daya
apung. Magnitud daya
apung ini adalah bersamaan berat cecair (air)
yang disesarkan. Persamaan bagi daya
apung adalah seperti berikut:
Sekiranya berat jasad, W, lebih besar daripada daya apung, U, jasad akan tenggelam.
Sekiranya berat jasad, W, kurang daripada daya apung, U, jasad akan terapung.
Baca juga mengenai tekanan dalam cecair.
U
= ⍴Vg
di mana
di mana
⍴
= ketumpatan
bahantara (seperti
air)
g
= pecutan
disebabkan graviti
Sekiranya berat jasad, W, lebih besar daripada daya apung, U, jasad akan tenggelam.
Sekiranya berat jasad, W, kurang daripada daya apung, U, jasad akan terapung.
Baca juga mengenai tekanan dalam cecair.
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