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Homework Help: Lab Report Help

  1. Sep 23, 2010 #1
    1. The problem statement, all variables and given/known data
    I did an experiment of mass vs. period and I got the mass in (g)rams and the period in seconds. My question is, do I have to convert the mass from grams to kilograms?


    2. Relevant equations
    N / A


    3. The attempt at a solution
    N / A
     
  2. jcsd
  3. Sep 23, 2010 #2
    Kilo could be thought of as 1000.

    Kilogram>Gram, you want your number to decrease not get bigger.

    Grams / 1000 = Kilograms

    1000 grams / 1000 = 1kilogram
     
  4. Sep 23, 2010 #3
    Okay, that doesn't answer my question though; I was asking if it's necessary to convert the mass from (g) to (kg) for the data in the lab report.
     
  5. Sep 23, 2010 #4

    kuruman

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    Mass vs. period of what? A pendulum or a spring-mass system? It makes a difference. What is the equation that gives the period for your system?
     
  6. Sep 23, 2010 #5
    A spring-mass system. The equation is T = km^0.5 where k is a constant. The value of k differs if the mass is in grams or kilograms. That's why I need to know what to put mass as so that I get the right answer.
     
  7. Sep 23, 2010 #6

    kuruman

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    If it's a spring-mass system, you need to convert to kilograms.
     
  8. Sep 23, 2010 #7
    Thank you so much :smile:

    ..Wait a minute "I know one thing - that I know no thing.". What?
     
  9. Sep 23, 2010 #8
    I need help again, the equation I found was T = 1.12 * x^0.5

    Do I write it as T = 1.12 * x^0.5 or T = 1.12 * sqrt0.5
     
  10. Sep 24, 2010 #9

    kuruman

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    You write it as

    [tex]T=1.12*\sqrt{x}[/tex]
    or
    [tex]T=1.12*x^{1/2}[/tex]
     
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