If the stiffness of the spring is k, the elastic energy of the spring when compressed is (1/2)ks 2, where s is the amount that the spring is compressed. It is informative to write an equation expressing the total energy of the system. This is given by, (1/2)ks 2 = (1/2)M 1 V 1 2 + (1/2)M 2 V 2 2 where most of the energy goes into the smaller Jul 22, · Importance Of Energy Conservation: Energy conservation plays a significant role of lessening climate change. It helps the replacement of non-renewable resources with renewable energy. Energy conservation is often the most inexpensive solution to energy shortages, and it is more environmentally kind alternative to increased energy production Energy is a very important concept in Physics. We can define energy as the strength to do any kind of physical activity. Therefore, we can say that Energy is the ability to do work. In this article, we will discuss the concept of energy and energy formula physics with examples. Let us learn the concept!
Thermal Energy Transfer: Conduction, Convection, Radiation | SchoolWorkHelper
The Difference Between Momentum And Kinetic Energy In physics you often hear the words "momentum" and "kinetic energy". It might be tempting to think that they are fairly similar concepts, but in fact they are not. They are related concepts, but are distinct in the physical sense. To get you thinking more deeply about this imagine getting struck by two fast moving objects having the same momentum.
One object weighs 10 kg and the other object weighs 0. Which object would inflict more damage? The intuitive response to this might be that they would both inflict an equal amount of damage given that they both have an equal amount of momentum, energy conservation essays.
As it turns out, the 0. How so? The way to understand this is energy conservation essays look at the mathematical representation of momentum and energy conservation essays energy for a particle; where a particle is used as a reasonable representation for the objects.
Therefore, energy conservation essays, the object weighing 0. In fact, the kinetic energy of the 0. The kinetic energy of an object is directly proportional to how much damage it will inflict when it strikes something. But interestingly enough, it's the object weighing less that will do more damage, for a given momentum, energy conservation essays. And it is the square of the velocity in the kinetic energy equation which makes this effect possible.
You can generalize this result to say that the ratio of kinetic energy of two objects having the same momentum is the inverse ratio of their masses. This principle readily applies to firearms. When a bullet leaves a gun it has the same momentum as the gun which recoilsdue to conservation of momentum. But the bullet has much more kinetic energy than the gun. Looking at this more deeply you realize that much more of the gunpowder energy was transferred to the bullet than the gun, in the form of kinetic energy.
As an analogy to the gun and bullet consider the figure below showing two blocks with a spring held between them. This spring represents the gunpowder which stores the energy pushing the bullet and gun apart, represented by the smaller block and larger block, respectively. Initially, the spring is compressed between the blocks. The spring is then released and pushes the two blocks apart. In this system momentum is conserved, and as shown previously, the kinetic energy of the smaller block of mass M 2 energy conservation essays larger than the kinetic energy of the larger and heavier block of mass M 1.
As a result, the velocity of the smaller block V 2 is greater than the velocity of the larger block V energy conservation essays. As a result, most of the energy of the spring goes into the smaller and lighter block. This is just the nature of the physics at work which we arrive at using mathematics. It is informative to write an equation expressing the total energy of the system.
So in this case, energy conservation essays, bigger is definitely better. For two objects having the same momentum you want to be struck by the heavier object since it will inflict less damage. Return energy conservation essays Physics Essays page Return to Real World Physics Problems home page.
WMGLD Energy Conservation Essay Contest for 2019
, time: 27:27Conservation, Conservation of Environment, Environmental Conservation
We would like to show you a description here but the site won’t allow blogger.com more Materials – Fuel Conservation Ways; Reason for Finishing of Resources; 1. Solar energy. Sun is a big source of energy. The energy that we get from the Sun is called solar energy. All the natural phenomenon like the flowing of wind, water cycle, photosynthesis etc are possible only due to solar energy. Now a day, solar energy is being used to The demand for an economical car led to the launch of model 3 series in which could cover a range of around km with a fully charged battery. Elon musk had a wide vision of growing the company into different sustainable sectors and recognized that for homes and businesses there is a need for products run by Solar energy
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