SIMPLE HARMONIC MOTION

Annotations:

• F= -kx a= -w^2x 

Attachments:

• REPRODUCTION

1. mass
2. linear restoring force

1. periodic
2. same frequency
3. oscillation - same oscillation
4. linear restoring force

1. displcacement (x)
2. amplitude (A)
3. period (T)
4. frequency (f)
5. angular frequency (w)
6. phase angle (@)

1. displcacement
   1. x= A cos @= x[max] cos wt
      1. A=x[max]
      2. @=wt
   2. at x-axis
   3. @=wt, w is constant. t is independent (outside the circle)
   4. Enter text here
2. velocity
   1. -Aw sin wt
      1. because the velocity is moving to the left, it have -(ve) sign

         Attachments:

         • shm
      2. we use sin bcoz the @ is on the P point, not Q
3. acceleration
   1. do not fixed with time
   2. a=-xw^2, x is displacement
   3. have max acceleration at max -,+(x)
4. w (angular speed) = the number of radian it move through per second
   1. 2(pai)f, f-is constant in 1 frequency for 1 cycle
   2. 2(Pai)f=2pai/T

1. oscilaltion spring
2. pendulum

1. damping
2. forced oscilation & resonance
3. self-excited vibration