newton's law

简明释义

牛顿定律

英英释义

例句

1.The engineer applied newton's law (牛顿定律) to calculate the forces acting on the bridge.

工程师应用牛顿定律（牛顿定律）来计算作用在桥上的力。

2.A common example of newton's law (牛顿定律) is how a ball rolls down a hill due to gravity.

一个常见的牛顿定律（牛顿定律）例子是球如何因重力而滚下山坡。

3.Understanding newton's law (牛顿定律) is crucial for anyone studying mechanics.

理解牛顿定律（牛顿定律）对于任何学习力学的人来说都是至关重要的。

4.In sports, athletes often use newton's law (牛顿定律) to improve their performance by understanding forces.

在体育运动中，运动员常常利用牛顿定律（牛顿定律）来通过理解力量来提高他们的表现。

5.In physics class, we learned about newton's law (牛顿定律) and how it explains the relationship between force and motion.

在物理课上，我们学习了关于牛顿定律（牛顿定律）的内容，以及它如何解释力与运动之间的关系。

作文

Sir Isaac Newton, one of the most influential scientists in history, formulated a set of laws that describe the motion of objects. These principles, known as Newton's laws (牛顿定律), are fundamental to our understanding of classical mechanics. The three main laws he proposed provide a framework for analyzing how forces affect the movement of objects, and they have been essential in the development of physics as a science.The first of these laws, often referred to as the law of inertia, states that an object at rest will remain at rest, and an object in motion will continue in motion at a constant velocity unless acted upon by a net external force. This principle highlights the concept that objects tend to maintain their state of motion, which is crucial for understanding how forces interact with matter. For example, when you slide a book across a table, it eventually comes to a stop due to the frictional force acting against its motion. Without this external force, the book would continue sliding indefinitely.The second law of motion introduces the relationship between force, mass, and acceleration. It can be summarized by the equation F = ma, where F represents force, m is mass, and a is acceleration. This law explains how the velocity of an object changes when it is subjected to an external force. For instance, if you push a shopping cart, the harder you push (greater force), the faster it accelerates. Similarly, if the cart is heavily loaded (greater mass), it requires more force to achieve the same acceleration. This law is vital in various applications, from engineering to everyday activities, as it helps us predict how objects will behave under different conditions.The third law of motion, commonly expressed as 'for every action, there is an equal and opposite reaction,' emphasizes the mutual interactions between objects. This means that when one object exerts a force on another, the second object exerts a force of equal magnitude but in the opposite direction on the first object. A practical example of this law can be seen when a swimmer pushes water backward with their hands; as a result, they move forward. This principle not only applies to swimming but is also evident in many other scenarios, such as rocket propulsion, where the expulsion of gas from the engine creates a thrust that propels the rocket forward.Understanding Newton's laws (牛顿定律) is not just an academic exercise; it has real-world implications. Engineers use these principles to design vehicles, buildings, and various technologies that rely on predictable motion. Moreover, these laws help explain natural phenomena, from the orbits of planets to the trajectory of a thrown ball. In education, students learn about these laws as foundational concepts in physics, which serve as building blocks for more advanced topics in science.In conclusion, Newton's laws (牛顿定律) are essential for understanding the mechanics of motion. They provide insights into how forces interact with objects and allow us to predict and analyze physical behavior in our world. As we continue to explore the universe and develop new technologies, the relevance of these laws remains significant, highlighting the enduring legacy of Sir Isaac Newton's contributions to science.