能源保护vs Momentum |势头保护vsConservation ofEnergy
Conservation of energy and conservation of momentum are two important topics discussed in physics. These basic concepts play a major role in fields such as astronomy, thermodynamics, chemistry, nuclear science and even mechanical systems. It is vital to have a clear understanding in these topics in order to excel in these fields. In this article, we are going to discuss what conservation of energy and conservation of momentum are, their definitions, applications of these two topics, the similarities and finally the difference between conservation of momentum and conservation of energy
能源保护
能源保护是一个在经典力学下讨论的概念。这指出隔离系统中的总能量总量是保存的。但是,这并不完全正确。要充分理解这个概念,必须首先了解能量和质量的概念。能源是一个非直觉的概念。“能量”一词源自希腊语“ energeia”,这意味着操作或活动。从这个意义上讲,能量是活动背后的机制。能量不是直接观察的数量。但是,可以通过测量外部特性来计算它。能量可以多种形式找到。 Kinetic energy, thermal energy and potential energy are to name a few. Energy was thought to be a conserved property in the universe up until the special theory of relativity was developed. The observations of nuclear reactions showed that the energy of an isolated system is not conserved. In fact, it is the combined energy and mass that is conserved in an isolated system. This is because energy and mass are interchangeable. It is given by the very famous equation E = m c2,where E is the energy, m is the mass and c is the speed of light.
势头保护
Momentum is a very important property of a moving object. The momentum of an object is equal to the mass of the object multiplied by the velocity of the object. Since the mass is a scalar, the momentum is also a vector, which has the same direction as the velocity. One of the most important laws regarding momentum is Newton’s second law of motion. It states that the net force acting on an object is equal to the rate of change of momentum. Since the mass is constant on non-relativistic mechanics, the rate of change of momentum is equal to, the mass multiplied by the acceleration of the object. The most important derivation from this law is the momentum conservation theory. This states that if the net force on a system is zero, the total momentum of the system remains constant. Momentum is conserved even in relativistic scales. Momentum has two different forms. The linear momentum is the momentum corresponding to linear movements, and the angular momentum is the momentum corresponding to the angular movements. Both of these quantities are conserved under the above criteria.
What is the difference between conservation of momentum and保护活力? •节能仅适用于非权威主义量表,只要没有发生核反应。即使在相对论条件下,线性或角度的动量也是保守的。 • Energy conservation is a scalar conservation; therefore, the total energy amount must be considered when doing calculations. Momentum is a vector. Therefore, momentum conservation is taken as a directional conservation. Only the momenta on the considered direction have an impact on the conservation. |
自动人士说
At best our principals of physics are not laws and are not 100% accurate, but it is close enough to work for us in most of our endeavors. For example, we can’t explain how Apollo 13 made it back to Earth. The fact that it did allows for what I call magic math and fantasy physics. The fact is that exact occurrence cannot be duplicated. One day science will accept what I call the GOD factor, which is the true 4th function of a unified theory of everything. Even Einstein admitted that after 20 yrs. he didn’t have the answer, but said that it had to be simple. I am working on simplistics (my terminology) and am loving it. Instead of equations, I’m using experience and observation for my explanations. Also, you should know that I have Autism and therefore cannot think the way normal people do. If you are interested in my work, email me with your phone number and we can talk about it. I think that you will find it interesting as would I. 2 people searching for answers in opposite thought processes.