Can Energy be transformed or is it a misnomer?
Transformation of energy is not a misnomer. It is a physical reality that is happening at any time around us. Conservation of energy states that the total amount of energy (including potential energy) in a closed system remains constant. In other words, energy can be converted from one form to another, but it cannot be created or destroyed. In modern physics, all forms of energy exhibit mass and all mass is a form of energy. The first law of thermodynamics principle states; The increase in the energy of a closed system is equal to the amount of energy added to the system by heating, minus the amount lost in the form of work done by the system on its surroundings. In this physical law, We cannot prevent loosing energy every time it is transformed from one to another. Energy can be transformed, exchanged, convert, modify, from one form to another. We do that everyday. Even our existence is depending on it from Physics to Biochemistry. Nature do it for us or we do it to the best of our technology.
What are the energy transformations in a fax, and radio and television?
Energy - 3.1 Energy transfer; 3.2 Energy and the laws of motion ... of transformations in energy (what kind of energy is ... A heat is defined as a transfer (flow) of thermal energy across certain ..... Energy balance - Energy balance has the following meanings in several fields: In physics, energy balance is a systematic presentation of energy flows and transformations in a system... Energetics - Energetics is the scientific study of energy flows and storages under transformation. Because energy flows at all scales, from the quantum level, to the biosphere and cosmos, energetics is therefore a very broad discipline, encompassing for example thermodynamics, chemistry, biological energetics,.. Bioenergetics - ... that concerns energy flow through living systems ... dependent on energy transformations; living organisms survive because of exchange of energy ... The release of energy, also called free .....
How is energy transformed into usable energy?
Wind energy is transferred to the blades of the windmill and cause them to rotate... A shaft attached to the blades rotates and is connected to an electrical generator whose shaft also rotates... The electrical generator has strong magnets and coils of wire... The rotation of the generator shaft causes the coils of wire to pass through the field of the magnets... That relative motion causes electricity to flow... If you want a light bulb to light right now you can use the instantly generated electricity... If you also want the light bulb to light when the wind is not blowing you can use the electricity generated to charge a battery which you can use at quiet times...
How is energy transformed in a car?
Gasoline is a very energy dense fuel…The engine converts this to rotational energy,to provide motive force.When you come to a stop sign,you lift your foot from the accelerator pedal,reducing this conversion,and apply the brake.this converts all the energy you just stored in your moving vehicle..which is known as kinetic energy, to heat in the brake rotors and drums.When you accelerate you start the process all over again.The process is pretty wastefull, as most powerplants are lucky to convert 20% of the available energy of the fuel to actual work….losing most of it to heat in the exhaust and cooling system
Whenever energy is transformed...?
It's called entropy, basically it means that as time goes on, everything goes towards chaos. (Not the bad type of chaos...it just means that everything gets mixed up) It's also called the Rules of Thermodynamics. The first rule is that Energy CANNOT be destroyed or created, only transferred. And because the majority of energy is transformed into heat, that leaves less energy to be of use. It's very hard to explain, just follow the rules and laws; there's no way around them.
How is wind energy transformed into electricity?
The movement of a conductor through a magnetic field produces a current. The wind turbines usually have alternators which change the rotary motion into AC power which is then rectified into DC power. As the AC power from the alternator would have frequencies dependent on the speed of the wind, it can't be tied directly to the grid ( at least not easily ) so it must first be rectified into DC and then inverted to AC by a grid tied inverter. If the system is to be grid free, the DC can be used to charge batteries. If a DC generator had been used instead of an alternator, the voltage would be dependent on wind speed limiting the usefulness of the power produced ( this was why cars abandoned generators for alternators ).
Can nuclear energy be transformed into usable energy?
Nuclear Energy is usable energy now, and has been since the first reactor plants were built in the 1950s.There have been problems, obviously. The Three Mile Island (TMI) incident in 1979 was a big scare, but ultimately, just a financial disaster for Metropolitan Edison.Yours truly was there, by the way. Right after the incident as part of the industry response team, and later as a Nuclear Regulatory Commission Radiation Specialist, on-shift to monitor operations.Chernobyl was the accident that the US anti-nuclear coalition were trying to blow TMI up to be. A terrible accident. brought to fruition by the marriage of a bad design and foolishness bordering on stupidity in reactor operations and testing.Finally there’s Fukushima. Another bad design. The backup diesel generators in the basement? The tsunami over-tops the sea wall and floods the backup power source. The reactor cores melt due to lack of cooling water. A terrible accident.So, we quit? No! The future of nuclear is very promising. We have designs for smaller, intrinsically safe reactors. Some are being built now. And over the horizon (maybe another 25 years) there’s fusion power. Intrinsically safe, nuclear waste free fusion power.
How is solar energy transformed into thermal?
The question is not complete. However, I assumed you are asking “How solar thermal energy converted into electricity?” Or you are asking, “How solar energy transformed into thermal power?”.For the first one, In brief: Solar thermal radiation converted to kinetic work (e.g: steam) to mechanical work (rotation of turbine) to produce electricity. The Sun radiation or the solar rays are concentrated (using reflector/s) and focused in to one focal point (e.g: in power tower) or in a focal line (e.g: in parabolic trough) of a receiver/s (e.g: in a box or tube shape receiver). Where inside the collectors/receivers the working fluids or heat transfer fluid/HTF (e.g: water/gas/molten salt/HTF) absorbed the concentrated solar heat (as sensible heat). This thermal heat (after gaining concentrated heat, the high pressure and temperature HTF) then turns the turbine (e.g: steam/gas), which coupled with electromagnetic generator for producing the electricity.For 2nd : Concentrated solar radiation transmit the heat energy to the working fluid or HTF to obtain thermal load by use of some reflectors, collectors and accessories.
In a refrigerator, electrical energy is transformed into what energy?
The answers you have received so far miss an important point: The purpose of the electrical energy is to produce cold and that is done when a compressed coolant is first released through a nozzle. The rapid drop of pressure causes the cooling by adiabatic process. It is the same process that cools warm air rising in the atmosphere. As it reaches lesser pressure aloft, it cools down by adiabatic effect at an average rate of 0.65 C per 100 meters (3 F per 1,000 ft).
How is mechanical energy transformed into sound?
Sound is how we experience mechanical waves, transferring energy through air by changing the air pressure. Sound waves are typically created by something oscillating (vibrating), which “pushes” on air molecules, which push on more air molecules, and so on … You can see it (as a blur) in this image of a vibrating tuning fork:In this animated gif image, the black dot in the center is the oscillator (tuning fork, or strings on a string instrument, or a church bell, or the skin of a drum, or … (you get the idea)). At sea level air pressures, sound waves propagate (through air, i.e., the speed of sound) at roughly 340 m/s:When a sound wave within an audible frequency range hits or ears, the eardrum begins resonating in sync with the changing air pressure, which through ear-to-brain “psychomechanical magic” we perceive as sound.The web site How Sound is Formed? (from which the above anim gif was taken) does a good job describing what’s going on.