what is energy?. energy is the ability of an object to produce a change in itself or the world...
TRANSCRIPT
What is Energy?
Energy is the ability of an object to produce a change in itself or the world around it.
Whenever work is done, energy is transformed or is transferred from one system to another.
Gravitational Potential Energy
Potential energy (PE) is sometimes called energy of position because it results from the relative positions of objects in a system.
𝑷𝑬=𝒎𝒈𝒉
Other Forms of Energy
The sum of the kinetic and potential energy in a system is called mechanical energy.
Energy that lies at the level of the atom is sometimes called non-mechanical energy.
Other Forms of Energy
Plants use photosynthesis to turn the energy of sunlight into chemical energy.
The sun’s energy comes from nuclear fusion.
Other Forms of Energy
Energy can be stored in electrical fields, which have electrical potential energy.