Oscillations

Question 1

Formulas

Answer 1

x=xo sinwt
v=wxo coswt ->v=+-w(xo^2 - xo^2)^1/2
a=-w^2(xo sinwt ) ->a=-w^2x

Question 2

Graphs

Answer 2

Pic

Question 3

Simple harmonic motion

Answer 3

Motion of a body whose acceleration is proportional and opposite to its displacement from equilibrium position

Question 4

KE,PE,TE

Answer 4

Pic

Question 5

Light damping, critical damping, heavy damping

Answer 5

Light damping: oscillate with decreasing amplitude
Critical damping: return to equilibrium position in shortest possible time without oscillating
Heavy damping: longer time to return to equilibrium position without oscillating

Question 6

Resonance

Answer 6

Phenomenon that occurs when frequency at which an object is being made to vibrate is equal to natural frequency of vibration

Question 7

What happens when degree of damping decreases

Answer 7

Peak flatten and shifts to the left, amplitude decreases

Question 8

Damped oscillations

Answer 8

Oscillations in which the amplitude diminishes with time as a result of dissipative forces that reduce the total energy of the oscillations