1.
buoyancy; buoyant force
The upward force exerted by a fluid on an object immersed in it. A fundamental concept in physics, also used more broadly to describe the ability of something to float.
浮力で体が浮く。
The body floats due to buoyancy.
塩水は真水より浮力が大きい。
Salt water has greater buoyancy than fresh water.
船が沈まないのは、水の浮力が船の重さを支えているからだ。
Ships don't sink because the buoyancy of the water supports the weight of the ship.
A physics term that learners encounter in science contexts. The concept is explained by Archimedes' principle: an object submerged in fluid experiences an upward force equal to the weight of the displaced fluid.
COMMON COLLOCATIONS:
- 浮力が働く: buoyancy acts/works
- 浮力が大きい: has high buoyancy
- 浮力を利用する: to make use of buoyancy
- 水の浮力: buoyancy of water
RELATED TERMS:
- 重力: gravity — the downward force that buoyancy counteracts
- 水圧: water pressure — pressure exerted by water
- 比重: specific gravity — the ratio of a substance's density to that of water