Oscillations Flashcards
Oscillation definition
The periodic motion about a point of equilibrium
Period
Duration of one cycle in a repeating event
Frequency
Number of cycles per unit of time
Point of equilibrium
Point around which the system oscillates.
In this point the resultant force acting on the object is zero, therefore acceleration is zero.
The maximum velocity is in the point of equilibrium.
When is acceleration zero?
Point of equilibrium
When is velocity maximum
Point of equilibrium
Displacement
The momentary distance of the oscillating object from the point of equilibrium.
Amplitude
Maximum displacement
Harmonic oscillation
Oscillation along a straight line. Displacement is a sine function of time
When velocity is maximum, displacement is..
Zero
When displacement is maximum, velocity is ..
Zero
This is also the amplitude.
The force acting on the object is proportional to the
Displacement
Force always points to the
Equilibrium (restoring force)
Free oscillation
Spontaneous oscillation that proceeds on its own without external influence.
In free oscillation what is the relationship between the s in hooke’s law and the y, displacement in the first equation?
S and y is the same!
Y = A sin (wt + ø)
