Didactic teaching often seems to demand that ideas should be given precise definitions, but energy can be a slippery concept just when we think of us have grasped it some new example is likely to elude of us. Furthermore, even though it would be nice if the concept of energy were immutable, the history of physics shows that conceptions change. Ideas about energy are still developing and cropping up in new contexts. For example, physicists of half a century ago would have a hard time understanding the modern, somewhat speculative, concept of a” dark energy” that drives the expansion of the cosmos. one of the best straightforward explanation of power was agreed by Nobel laureate Richard Feynman.
Energy is not something detectable but a number that has to be designed using a complete set of policy. Feynman used a metaphorical story about a mother counting a kid’s toy blocks. Power to Choose an underlying principle, Understanding energy 3conservation of blocks, leads Mother to look in more and more places and find new ways to account for blocks to make sure that the conservation principle works.
Some part of energy work
At worst they are just plain wrong. The main argument against such a definition comes from thermodynamics. In thermodynamics, work takes on a meaning which is broader than the “force times distance” concept of classical mechanics. It refers either to a process of energy transfer or to the energy being transferred. Understanding energy 4texts are not clear which of those …