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How is coal converted into usable energy?
it is formed by being burned which causes heat, which can also be converted into motion energy.
Is heat a unusable energy?
Heat, by itself, is unusable. It is the heat difference that makes it usable.
Describe how the energy changes from a usable form to a less usable form in a building's heating system?
While producing heat energy is precisely the purpose of a heating system, once any kind of energy is converted into heat, it can no longer be converted back to other forms of energy - at least, not all of it.
What energy source causes evaporation?
heat energy
Friction causes mechanical energy to be transformed into what?
Heat.
How is coal converted into usable energy?
it is formed by being burned which causes heat, which can also be converted into motion energy.
Is heat a unusable energy?
Heat, by itself, is unusable. It is the heat difference that makes it usable.
What is energy conservation and why should citizens conserve energy?
Energy conservation is that energy cannot be created or destroyed it can be transferred or transformed. We conserve energy no matter what we do. What we are really being told is to conserve usable energy which is energy not in the form of heat. We are told this to avoid the heat death of the universe this is when all the usable energy is lost due to heat.
What is the heat engine?
A heat engine is a system that converts heat to usable energy, particularly mechanical energy, which can then be used to do mechanical work
What is heat and what causes it?
Friction causes heat. Heat is a source of energy.
What happens to usable energy?
In any transfer of energy or conversion of energy from one form to another, the total amount of energy does not change. The total amount of usable energy, however, always decreases.
How does coal transform into usable energy?
You burn it for heat, which is then used to drive some type of heat engine to do work.
Describe how the energy changes from a usable form to a less usable form in a building's heating system?
While producing heat energy is precisely the purpose of a heating system, once any kind of energy is converted into heat, it can no longer be converted back to other forms of energy - at least, not all of it.
Why is heat called the graveyard of kinetic energy?
Heat is referred to as the graveyard of kinetic energy in that once kinetic energy has been transformed into heat, it is no longer usable.
What causes molecules energy that causes them to vibrate?
Heat!
What energy source causes evaporation?
heat energy
How is fossilfuel energy transformed into usable energy?
Fossil fuel (coal, crude oil) is burned or distilled to provide a usable energy. Either as a diesel or petrol fuel for an internal combustion engine, or to heat water to provide steam power.
