Energy, Damping and Resonance in SHM
4.2.1 Know the interchange between KE and PE during SHM.
Consider a spring
4.2.2 KE = 0.5mw2(x02 - x2)
TotalEnergy = 0.5mw2(x02)
PE = 0.5mw2(x2)
x0 = A (amplitude)... v = +/-w[sqrt(x02 - x2)]
4.3.1 Damping: a force that is always in the opposite direction of motion of the oscillating particle and the force is a dissipative force. Applet.
4.3.2 Under-damping: small force oscillation that slows down until it stops.
Critical-damping: system returns to equilibrium without oscillations
Over-damping: system returns to equilibrium but slower than critical damping.
4.3.3 Read pages 208-9. Natural frequency and forced oscillations.
HW. PG 213: 15-17, 24, 26, 27, 29-32, 35-37.