Matter vs. Energy Worksheet - Answer Key

 

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  1. In the macroscopic viewpoint, energy has the characteristics of being

      2.  

    1. Massless

      2.  

    2. Delocalized

     

     

  2. Energy is described as a wave.
               

    3.  

     

  3. What is the equation of a wave?


      4.  

       

    1. What do each of the terms in the equation stand for?

      λ – Wavelength (maximum to maximum or minimum to minimum, in meters)

ν – Frequency (# of waves passing through a point per second, in Hertz, s-1)
c – 2.998 x 108 m/s  (speed of light).

     

     

  1. In the macroscopic viewpoint, matter has the characteristics of being

      2.  

    1. Having mass.

      2.  

    2. Localized.

     

     

  2. How are the following frequently classified?

      3.  

    1. Ball - Matter

      2.  

    2. Light – Energy

      3.  

    3. Electron – Matter

     

     

  3. At the microscopic level is the distinction between matter and energy actually so black and white?

    No. 

    4.  

     

  4. What are some experiments that initiated this change in perspective?

      5.  

    1. Blackbody radiation – energy can only be absorbed in integer multiples.

      2.  

    2. Double Slit Experiment – wave formation of electrons

      3.  

    3. Photoelectric effect – particle properties of light.

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