1 of 14

2 of 14

3 of 14

restoring forces

W

N

Fnet = 0

4 of 14

restoring forces

W

N

Fnet = toward equil.

5 of 14

restoring forces

W

N

Fnet = toward equil.

Restoring forces always push

the system back toward equilibrium

6 of 14

Pendulum

N

W

7 of 14

8 of 14

Simple harmonic motion

Equil. point

T

T= period = time for 1 complete oscillation

f = frequency = # of oscillations/time

= 1/T

Pure Sine-like curve

9 of 14

10 of 14

11 of 14

12 of 14

13 of 14

14 of 14

ASSIGNMENT

Q.1:What is the cause of periodic motion?

Q.2:All oscillatory motions are periodic while converge are not true? Justify.

Q.3:Draw energy(kinetic ,potential and total) vs position graph associated of a particle in SHM?

Q.4:Wite mathematical expressions for

1.Free oscillation

2.Damped oscillation

3Forced damped oscillation