HELPP!!! HOMEWORK!!!!!!!!?

i need examples of these energy transfers

light to mechanical

light to nuclear

sound to chemical

sound to nuclear

mechanical to chemical

mechanical to nuclear

electrical to chemical

electrical to nuclear

chemical to nuclear

nuclear to mechanical

nuclear to electrical

nuclear to chemical

i dont need all of them just whatever you can thankss!

1 Answer

  • Anonymous
    10 years ago
    Favorite Answer

    lets see

    -light to mechanical: photons of light each have an energy in Joules, it is very small, but its energy. use photovoltaic cells to collect the energy and run it to an electric motor. the electric motor's rotor of a certain mass moment of inertia will suddenly gain rotational speed. the rotational kinetic energy of the rotor in a perfect world must have the same energy as the photon of light. but in practice you need billions, trillions of photons constantly streaming in to level off the friction of the motor and inefficiencies of the cells. to keep the rotor running at a constant speed.

    -light to nuclear: ::scratches head:: simplistically a photon of light strikes an atom. well it actually impinges on the electrons of the atom. the photon gets absorbed and if you could see the electrons, some of them jump slightly farther away from the nucleus. on its own time the atom's electrons will want to return to their ground states and in so doing they must lose the energy given to them. a photon of light is emitted from the atom, not necessarily the same color of light that initially hit the atom.

    0-electrical to nuclear, this one is simple. if you had a point charge (like a comb charged up with static electricity) and you wave it around in a circle, you are in fact creating radio waves whose frequency is governed by how frequently that brush passes an imagined point. spin faster and faster until the comb nears the speed of light and the comb will emit visible light, a tad faster and you make ultraviolet light. faster and faster and the comb will eventually emit gamma rays (id stand back a few miles), faster still cosmic rays. the types of light from UV to cosmic are the powers of light needed to effectively make stuff happen inside an atom. so it is possible for us to make a difference in an atom's life. but is it lasting? well, we can make em fall apart and release a whole lot of energy, but we cannot give an atom lasting energy. of course we can give them energy, but theyll only give it away. making an atom have more potential nuclear energy is tantamount to making a new element. like turning hydrogen into plutonium. we could do it, one atom at a time. but the game would be like setting the atom up so that it may (if provoked) fall apart and release energy of its own accord. so in a sense, yes you can make mechanical energy into electrical energy (which is a letter's spelling away from light really) you can then use that energy to make a bigger and bigger atom. it would then have more and more potential nuclear energy.

    0-nuclear to mechanical: several routes, through nuclear fission (or more violently alternatively fusion) photons in the infrared wavelength are emitted which heat everything around them from light radiance, there is also lots of hubbub inside of the fuel pellet too and atoms are shaken up as much as broken apart, the place gets hotter and hotter. energy is now expressed in the kinetic energy of the molecules (which are slamming into things and occassionally into one another). the reactor is sheathed (hopefully) in water which takes this molecular comotion to its own. eventually it gets hot enough that the water molecules have enough area Kinetic energy to overcome the area kinetic energy (pressure) of the surrounding gasses (in this case some steam already made), the water then becomes gaseous (steam). it flows through pipes and is fed through a steam turbine. i could stop here because technically the kinetic energy Is mechanical energy, but ill go farther. the steam is made to perform work on the blades of the turbine and the turbine picks up speed. so the latent nuclear energy in the fuel pellet is now rotational kinetic energy given to the turbine. all throughout this process the place glows in the infrared bands losing energy all over the place, heat leaves the pipes from convective heat transfer and the turbines are generally very very noisy. loss of energy through sound.

    Source(s): i am a senior college student studying to be an aerospace engineer.
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