SHM

1
SHM

• Any periodic motion that is the result of
• A restoring Force that is proportional to the
• displacement of the object
• Is called Simple Harmonic Motion
• You all have found it is explained with
• http//www.subrew.com/chris/fiat/26feb03/spring.jp
  g

2
SHM Space

• Our Spring Chicken follows a specific sequence
  to make one full oscillation
• Down
• Return
• Up
• Return
• When the chicken goes below equilibrium, (- x)
  that means the Force is pulling up (F).
• Then Chicken goes above equilibrium, (x) and
  Force is now pushing down (-F).

• http//www.subrew.com/chris/fiat/26feb03/spring.jp
  g

3
SHM Time

• Hopefully, you have now figured out that the
  period of a spring is related only to the mass.
• Further, the relation is a square root relation

• Heres some news its also related to the
  spring constant
• (I didnt have you look for it.)
• The actual equation needs another relation
  constant- besides the spring constant

Still not an equation!!
Okay, this is the equation!!!!
Not an equation!!
4
SHM Time

• Hey, whered that 2p come from?

5
SHM Pendulums

• One other type of periodic motion is demonstrated
  by a pendulum

6
SHM Space Time
What would happen if the Spring Chicken also
moved left to-right?