buoyancy force

简明释义

浮力

英英释义

例句

1.To determine if an object will float, calculate the buoyancy force 浮力 compared to its weight.

要确定一个物体是否会漂浮，计算其重量与buoyancy force 浮力的比较。

2.The buoyancy force 浮力 is greater when the object is more submerged in the fluid.

当物体在液体中被淹没得更深时，buoyancy force 浮力会更大。

3.A helium balloon rises because of the buoyancy force 浮力 exerted by the surrounding air.

氦气球上升是因为周围空气施加的buoyancy force 浮力。

4.The buoyancy force 浮力 acting on the boat keeps it afloat on the water.

作用在船上的buoyancy force 浮力使它在水面上漂浮。

5.When you dive underwater, the buoyancy force 浮力 helps you rise back to the surface.

当你潜入水下时，buoyancy force 浮力帮助你浮回水面。

作文

The concept of buoyancy force is fundamental in understanding how objects behave when placed in a fluid, whether it be water, air, or any other substance. The buoyancy force is the upward force exerted by a fluid on an object that is submerged or floating in it. This force is what allows boats to float on water and balloons to rise in the air. Understanding this principle is crucial for various fields, including engineering, physics, and environmental science.To illustrate the buoyancy force, consider a simple experiment with a block of wood and a block of metal. When both blocks are placed in water, the wood floats while the metal sinks. This behavior can be explained by the buoyancy force. The wood displaces a volume of water equal to its weight before it is fully submerged, and since the weight of the displaced water is greater than the weight of the wood, the buoyancy force acts upward, keeping the wood afloat. In contrast, the metal block displaces less water than its own weight, resulting in a net downward force, causing it to sink.The mathematical explanation of the buoyancy force is provided by Archimedes’ principle, which states that the buoyancy force on an object is equal to the weight of the fluid that the object displaces. This principle not only applies to solids but also to gases. For example, helium balloons rise because the buoyancy force acting on them is greater than the weight of the helium inside the balloon.In engineering, understanding the buoyancy force is essential for designing ships, submarines, and even aircraft. Engineers must calculate the buoyancy force to ensure that vessels can float and remain stable in water. If a ship is designed without considering the buoyancy force, it may capsize or sink, leading to disastrous consequences.Moreover, the buoyancy force plays a significant role in environmental science, especially in understanding aquatic ecosystems. For instance, fish use the buoyancy force to maintain their position in the water column. By adjusting the amount of gas in their swim bladders, they can control their buoyancy and navigate through different depths effortlessly.In conclusion, the buoyancy force is a crucial concept that affects various aspects of our daily lives and scientific understanding. From the design of floating vessels to the behavior of underwater creatures, the implications of buoyancy force are vast and significant. Recognizing and applying the principles of buoyancy force can lead to advancements in technology, better environmental practices, and a deeper appreciation for the natural world around us.

“浮力”这一概念对于理解物体在液体中（无论是水、空气还是其他物质）如何行为至关重要。浮力是流体对浸没或漂浮在其中的物体施加的向上力。这种力量使得船只能够在水面上漂浮，气球能够在空气中上升。理解这一原理对工程学、物理学和环境科学等多个领域来说都是至关重要的。为了说明“浮力”，我们可以考虑一个简单的实验：一个木块和一个金属块。当这两个块被放入水中时，木块漂浮，而金属块则下沉。这种行为可以通过浮力来解释。木块排开一个与其重量相等的水体积，而由于被排开的水的重量大于木块的重量，因此浮力向上作用，使木块保持漂浮。而金属块排开的水量少于其自身重量，导致净向下力的产生，使其下沉。浮力的数学解释由阿基米德原理提供，该原理指出，物体上的浮力等于物体排开的液体的重量。这个原理不仅适用于固体，也适用于气体。例如，氦气球之所以上升，是因为作用于它的浮力大于气球内氦气的重量。在工程学中，理解浮力对于设计船舶、潜艇甚至飞机至关重要。工程师必须计算浮力，以确保船只能够在水中漂浮并保持稳定。如果一艘船的设计没有考虑浮力，它可能会倾覆或沉没，导致灾难性的后果。此外，浮力在环境科学中也起着重要作用，特别是在理解水生生态系统方面。例如，鱼类利用浮力来维持其在水柱中的位置。通过调整其游泳膀胱中的气体量，它们可以控制自身的浮力，并轻松地在不同深度间导航。总之，浮力是一个关键概念，它影响着我们日常生活和科学理解的各个方面。从浮动船只的设计到水下生物的行为，浮力的影响广泛且重要。认识并应用浮力的原理可以推动技术进步、改善环境实践，并加深我们对周围自然世界的欣赏。