MIME-Version: 1.0 Content-Location: file:///C:/D9286902/Fall08.Phys2211.Quiz1.SolutionWeb.htm Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii" Department of Natural Sciences

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Department = of Natural Sciences

Clayton State University

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August 22, 20= 08

Physics 221= 1 – Quiz 1

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Name  ____SOLUTION_________________________________

 

  1.  

      1. The distance between two etched lines in a platinum-iridium bar kept in S= erves, France.

     

      1. One ten-millionth of the distance between the North Pole and the equator.=

     

      1. The distance traveled by light in 1/299,792,458 of a second.

     

      1. 1,553,146.1 wavelengths of red cadmium light in dry air at 25oC.

     

     

    1.  The height of horses is measur= ed in a unit called hands. If a = height of 20 hands were expressed in the SI system of units, the units would = be:

     

      1. m.

     

      1. s.

     

      1. m/s.

     

      1. kg/s.

     

     

    1. The US dollar is not an SI unit. Nonetheless, express the sticker price of your

          favorite sports car in kilodollar= s (kilobucks!). What is the cost per kilogram? 

     

    $50,000 =3D k$50

     

    $50,000/(1,000 kg) =3D $50.0/kg