The Naked Scientists

The Naked Scientists Forum

Author Topic: Why is a pendulum is affected by gravity and a mass on a spring is not?  (Read 3400 times)

@eslbright

  • Guest
@eslbright asked the Naked Scientists:
   
Why is it that a pendulum is affected by gravity (g is in the equation for time period) and a mass on a spring is not?

What do you think?
« Last Edit: 27/11/2010 12:30:12 by _system »


 

SteveFish

  • Guest
I can think of some situations in which a mass on a spring would be affected by gravity and others where it would not be affected.
 

Offline granpa

  • Sr. Member
  • ****
  • Posts: 118
    • View Profile
instead of 'g' you have k which is the 'stiffness' of the spring

gravity creates the 'restoring force' for a pendulum but the spring creates the restoring force for a mass spring system
 

SteveFish

  • Guest
If you have a long tightly coiled spring fastened so that it is standing on its end, and fasten a weight on the top end of the spring, it will act like a pendulum when given a push. In this instance both gravity and the spring are involved as the weight rocks back and forth.
 

The Naked Scientists Forum


 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums