People say it in the sense of that we use it flawlessly and carelessly. We are not doing any good activities at all.
The energy in this universe can neither be created nor be destroyed but it can be transferred from one form to another so all the energy that you waste wil be converted to some other form.
The correct term is "conservation of energy". It either refers to making efforts not to waste energy, or to the physical law which states that under everyday circumstances, energy can't be created or destroyed.
Under normal circumstances, energy can't be created or destroyed. But in any activity (and energy is required for any activity), part of the useful energy is converted into unusable energy - for example, waste heat.
Tyseley Energy from Waste Plant was created in 1996.
Since energy can't be created nor destroyed (First Law of Thermodynamics), a loss or waste of energy really means that useful energy is converted into unusable energy (Second Law of Thermodynamics).
it is transfered or turned into waste thermal energy
You are'nt destroying energy when u wasted it. It is converted into another form of energy. ie.( when you are driving a car, the car's kinetic energy is wasted because it is reduced by the friction encountered, however the reduced kinetic energy is converted into heat energy) Hence, Energy can neither be destroyed nor created.
Energy is neither created nor destroyed by chemical processes, merely transferred. Since energy is also lost every time energy is transferred between organisms, that lost heat must go somewhere. That lost energy becomes waste heat in the environment.
A heater is a machine that converts electrical chemical energy into thermal energy. Energy can not be created nor destroyed, only tranferred from one form into another. this is why in most heaters some of the chemical energy used is also transferred into some waste energies, eg: Light energy
No, electric energy cannot be depleted, electricity produced when used is given off as waste energy, the lost energy is then increasingly spread out into the surrondings, it cannot be reused or destroyed.
Hydroelectric power produces almost no waste.
An example: When applying the brakes on a moving car (kinetic energy,) the Brake Pads and Disks heat (thermal energy) from the friction, as do the tires and the road (again, friction. All the Thermal Energy created, is waste or wasted.