energy :: essays research papers

What do we really need, cypher or power? This was a question proposed to me at the beginning of the semester and it really do me think. Energy is a property of matter that can be reborn into work, heat, or radiation. It is the capacity for doing work, generating heat, and emitting light or radiation. Power is the rate of expense cogency or slide fastener per unit time. Immediately, I thought the attend was nix since you need energy to have power. But then I heard that the answer was power and it boggled my mind, but after it was explained it really subject my mind. We do need energy to have power but what would we do without power. We cant live without power. We really need power because it is energy spent per unit time and what is the point of energy if we cant overtop it.There are six fundamental forms of energy. They are mechanical, thermal, chemical, electrical, nuclear, and electromagnetic. Mechanical energy is kinetic and potential energy. Kinetic energy is the energy that is possessed by a body due to its motion. And Potential energy is the Energy that a body possesses by virtue of its physical position above the citation level. Therefore, it depends on height above the reference level and the mass of the object. So potential energy is the mass *gravitational force *height. Thermal energy is the energy of the random motion of particles of a substance. An example of this would be calefacient up by a campfire or taking a savory bath. Chemical energy is energy that is stored in the chemical bonds that hold molecules together. When plastered chemicals combine or react, energy is released usually in the form of heat. most examples of this would be a tank of gasoline, coal, and natural gas. Electrical energy is the energy of electrons in motion. It is usually generated by the rotation of a conductor in a magnetic field and it is easily converted to other forms of energy.