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Thread: Electricity/Energy ?

  1. #1 Electricity/Energy ? 
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    Hello all ,just a simple question from me for a change, when electricity or energy/force hits an object of mass,
    but that energy would be a constant force , example a laser pointed at a wall.

    Would that energy beam, the laser, have any difference in any energy out put along the beam.

    Meaning, at the start of flow nearest to the laser, would it have a different energy level than the point of contact of the beam on the wall.

    And on the wall point of contact, would the energy level build, and create a back up of charge back to the starting point?


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  3. #2  
    Brassica oleracea Strange's Avatar
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    Quote Originally Posted by theorist View Post
    Hello all ,just a simple question from me for a change, when electricity or energy/force hits an object of mass,
    but that energy would be a constant force , example a laser pointed at a wall.
    Energy and electricity are not the same thing. A laser is not electricity.

    Would that energy beam, the laser, have any difference in any energy out put along the beam.
    Apart form a small energy loss due to absorption by the atmosphere, the energy would not change. (It can't change - conservation of energy.)

    And on the wall point of contact, would the energy level build, and create a back up of charge back to the starting point?
    The energy level would "build" to some extent if the laser warmed the wall where it hit. This would soon be balanced by the heat being lost by conduction and radiation. You wouldn't get a continuous increase. And no, this would have no effect at all on the laser.

    There would no "back up of charge" (whatever that means) because no charge is being transferred.

    Charge is not energy. Electricity is not charge. Energy is not electricity. etc.


    Last edited by Strange; April 2nd, 2013 at 10:05 AM.
    ei incumbit probatio qui dicit, non qui negat
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  4. #3  
    Genius Duck Dywyddyr's Avatar
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    Why is theorist still allowed to post in the science sub-forae?
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    "[Dywyddyr] makes a grumpy bastard like me seem like a happy go lucky scamp" - PhDemon
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  5. #4  
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    Quote Originally Posted by Strange View Post
    Quote Originally Posted by theorist View Post
    Hello all ,just a simple question from me for a change, when electricity or energy/force hits an object of mass,
    but that energy would be a constant force , example a laser pointed at a wall.
    Energy and electricity are not the same thing. A laser is not electricity.

    Would that energy beam, the laser, have any difference in any energy out put along the beam.
    Apart form a small energy loss due to absorption by the atmosphere, the energy would not change. (It can't change - conservation of energy.)

    And on the wall point of contact, would the energy level build, and create a back up of charge back to the starting point?
    The energy level would "build" to some extent if the laser warmed the wall where it hit. This would soon be balanced by the heat being lost by conduction and radiation. You wouldn't get a continuous increase. And no, this would have no effect at all on the laser.

    There would no "back up of charge" (whatever that means) because no charge is being transferred.

    Charge is not energy. Electricity is not charge. Energy is not electricity. etc.
    Thank you Strange for answering my Physics question.
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  6. #5  
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    Electricity is a type of energy , in other words it is a property of some sub atomic particles other forces may give shock to human being but a different type of shock
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    Brassica oleracea Strange's Avatar
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    Electricity is not a "thing"; it is a set of things related to electric charge and the movement of charge.

    Specifically, neither electricity nor charge are a type of energy.
    ei incumbit probatio qui dicit, non qui negat
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