gravitational constant

简明释义

万有引力常数

英英释义

例句

1.If the gravitational constant were different, our planet's atmosphere might not exist.

如果引力常数不同，我们星球的气氛可能就不存在。

2.Scientists use the gravitational constant to determine the orbits of planets.

科学家使用引力常数来确定行星的轨道。

3.The gravitational constant helps in understanding the structure of the universe.

引力常数有助于理解宇宙的结构。

4.The value of the gravitational constant is essential for calculating the force between two masses.

计算两个质量之间的力时，引力常数的值是必不可少的。

5.In physics, the gravitational constant is denoted by the letter G.

在物理学中，引力常数用字母G表示。

作文

The universe is governed by a set of fundamental laws, and one of the most significant among them is the law of gravitation. At the core of this law lies the concept of the gravitational constant, which is a crucial parameter that helps us understand the force of gravity between two masses. The gravitational constant (in Chinese: 引力常数) is denoted by the symbol 'G' and has a value of approximately 6.674 × 10⁻¹¹ N(m/kg)². This constant plays an essential role in Newton's law of universal gravitation, which states that every point mass attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.Understanding the gravitational constant is vital not only for physicists but also for anyone interested in the workings of the cosmos. For instance, when we calculate the gravitational force between Earth and the Moon, the gravitational constant is indispensable. Without it, our calculations would be incomplete, and we would struggle to comprehend the intricate dance of celestial bodies in our solar system.Moreover, the gravitational constant has implications beyond just the attraction between planets and moons. It also affects the behavior of objects on Earth. When you drop a ball, it falls to the ground due to the gravitational force, which can be calculated using the gravitational constant. This understanding of gravity is not just theoretical; it has practical applications in engineering, architecture, and even space travel.In recent years, scientists have attempted to measure the gravitational constant with increasing precision. Despite its seemingly straightforward nature, G has been difficult to pin down accurately. Variations in experimental conditions and methods have led to discrepancies in its measured value, raising questions about our understanding of gravity itself. These challenges highlight the importance of ongoing research in physics, as a more precise value of the gravitational constant could lead to new discoveries about the universe.Furthermore, the gravitational constant has profound implications in the field of cosmology. It is a critical factor in models of the universe’s expansion and the behavior of black holes. As we delve deeper into the mysteries of dark matter and dark energy, the role of the gravitational constant becomes increasingly significant. Understanding how it interacts with other forces in the universe could unlock answers to some of the most pressing questions in modern science.In conclusion, the gravitational constant is not just a number; it is a key to unlocking the secrets of the universe. Its influence spans from the smallest particles to the largest galaxies, shaping our understanding of the natural world. As we continue to explore the cosmos, the gravitational constant will undoubtedly remain a cornerstone of our scientific endeavors, guiding us toward greater knowledge and insight into the universe we inhabit.

宇宙由一组基本法则支配，其中最重要的法则之一是万有引力定律。这个法则的核心是引力常数的概念，它是一个关键参数，帮助我们理解两个质量之间的引力。引力常数（中文：引力常数）用符号'G'表示，值约为6.674 × 10⁻¹¹ N(m/kg)²。这个常数在牛顿的万有引力定律中起着至关重要的作用，该定律指出，每个点质量都以与其质量乘积成正比、与它们之间距离的平方成反比的力吸引其他点质量。理解引力常数对物理学家和任何对宇宙运作感兴趣的人来说都是至关重要的。例如，当我们计算地球和月球之间的引力时，引力常数是不可或缺的。没有它，我们的计算将是不完整的，我们将难以理解天体在太阳系中的复杂舞蹈。此外，引力常数还影响地球上物体的行为。当你扔下一个球时，它因引力而落到地面，这可以用引力常数进行计算。这种对重力的理解不仅仅是理论上的；它在工程、建筑甚至航天旅行中都有实际应用。近年来，科学家们试图以越来越高的精度测量引力常数。尽管它看似简单，但G的准确值一直难以确定。实验条件和方法的变化导致了测量值的差异，提出了关于我们对引力理解的问题。这些挑战突显了物理学持续研究的重要性，因为更精确的引力常数值可能会导致我们对宇宙的新发现。此外，引力常数在宇宙学领域具有深远的意义。它是宇宙扩展模型和黑洞行为的关键因素。当我们深入探讨暗物质和暗能量的奥秘时，引力常数的作用变得越来越重要。理解它如何与宇宙中的其他力量相互作用，可能会揭示现代科学中一些最紧迫的问题的答案。总之，引力常数不仅仅是一个数字；它是解锁宇宙秘密的钥匙。它的影响从最小的粒子延伸到最大的星系，塑造了我们对自然世界的理解。随着我们继续探索宇宙，引力常数无疑将始终是我们科学努力的基石，引导我们走向更大的知识和对我们所居住的宇宙的洞察。