law of universal gravity

简明释义

万有引力定律

英英释义

例句

1.Without the law of universal gravity, we wouldn't be able to explain tides and their patterns.

如果没有万有引力定律，我们无法解释潮汐及其模式。

2.The law of universal gravity helps us understand why the planets orbit the sun.

通过万有引力定律，我们可以理解为什么行星围绕太阳运行。

3.Isaac Newton formulated the law of universal gravity in the 17th century, explaining how objects attract each other.

艾萨克·牛顿在17世纪提出了万有引力定律，解释了物体之间是如何相互吸引的。

4.The law of universal gravity is essential for calculating satellite trajectories.

万有引力定律对于计算卫星轨迹至关重要。

5.Astronomers use the law of universal gravity to predict the movement of stars in galaxies.

天文学家使用万有引力定律来预测星系中恒星的运动。

作文

The law of universal gravity states that every point mass attracts every other point mass in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. This fundamental principle, formulated by Sir Isaac Newton in the 17th century, revolutionized our understanding of the physical world. It explains not only the motion of celestial bodies but also the phenomena we observe on Earth. To grasp the implications of the law of universal gravity, one must first appreciate its historical context. Before Newton, the prevailing theories about motion were largely based on Aristotelian physics, which posited that heavier objects fall faster than lighter ones. Newton's insight was groundbreaking; he demonstrated that all objects, regardless of their mass, fall at the same rate in a vacuum. This realization laid the groundwork for modern physics and paved the way for later developments in gravitational theory. The law of universal gravity can be observed in everyday life. For instance, when you drop a ball, it falls to the ground due to the gravitational attraction between the ball and the Earth. The strength of this force depends on the mass of the ball and the mass of the Earth, as well as the distance between them. This relationship can be quantified using the formula: F = G(m1*m2)/r², where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between their centers. Moreover, the law of universal gravity is not limited to objects on Earth. It governs the motion of planets, stars, galaxies, and even light. For example, the orbits of the planets around the sun can be explained through this law. The sun, being significantly more massive than the planets, exerts a strong gravitational pull, keeping them in their respective orbits. This celestial dance is a beautiful illustration of how the law of universal gravity operates on a grand scale. In addition to explaining motion, the law of universal gravity has profound implications for our understanding of the universe. It suggests that all matter is interconnected through gravitational forces. This interconnectedness means that changes in one part of the universe can have far-reaching effects elsewhere. For instance, the collision of two galaxies can alter the gravitational dynamics of neighboring galaxies, demonstrating the universal nature of this law. In conclusion, the law of universal gravity is a cornerstone of classical physics that provides a comprehensive framework for understanding the interactions between masses in the universe. Its principles are not only applicable to celestial phenomena but also to everyday experiences on Earth. By recognizing the significance of this law, we gain deeper insights into the workings of the universe and our place within it. The law of universal gravity continues to inspire scientific inquiry and exploration, reminding us of the intricate connections that bind all matter together.

万有引力定律指出，宇宙中的每个点质量都以一种力量吸引其他每个点质量，这种力量与它们质量的乘积成正比，与它们中心之间距离的平方成反比。这个基本原理是由艾萨克·牛顿在17世纪提出的，它彻底改变了我们对物理世界的理解。它不仅解释了天体的运动，还解释了我们在地球上观察到的现象。要理解万有引力定律的含义，首先必须欣赏其历史背景。在牛顿之前，关于运动的主流理论主要基于亚里士多德的物理学，认为较重的物体下落得比轻的物体快。牛顿的洞察是开创性的；他证明，无论物体的质量如何，在真空中所有物体以相同的速度下落。这一认识为现代物理学奠定了基础，并为后来的引力理论的发展铺平了道路。万有引力定律可以在日常生活中观察到。例如，当你丢下一个球时，它由于球与地球之间的引力而落到地面上。这种力量的强度取决于球和地球的质量，以及它们之间的距离。这个关系可以用公式F = G(m1*m2)/r²量化，其中F是引力，G是引力常数，m1和m2是两个物体的质量，r是它们中心之间的距离。此外，万有引力定律并不仅限于地球上的物体。它支配着行星、恒星、星系甚至光的运动。例如，行星围绕太阳的轨道可以通过这一法则来解释。太阳的质量远大于行星，因此施加了强大的引力，使它们保持在各自的轨道上。这种天体舞蹈是万有引力定律在宏观尺度上运作的美丽例证。除了解释运动，万有引力定律对我们理解宇宙也有深远的影响。它表明，所有物质通过引力相互连接。这种相互联系意味着宇宙某一部分的变化可能会对其他地方产生深远影响。例如，两颗星系的碰撞可以改变邻近星系的引力动态，展示了这一法则的普遍性。总之，万有引力定律是经典物理学的基石，为理解宇宙中质量之间的相互作用提供了全面的框架。其原理不仅适用于天体现象，也适用于地球上的日常经历。通过认识到这一法则的重要性，我们对宇宙的运作及我们在其中的位置有了更深刻的见解。万有引力定律继续激励科学探索和研究，提醒我们所有物质之间的复杂联系。