In tranverse waves the motion of the disturbance is perpendicular to the direction of motion of the wave. Longitudinal waves propagate in the same direction as the motion of the disturbance of the medium.
In tranverse waves the motion of the disturbance is perpendicular to the direction of motion of the wave.
Reflection off a sea wall: http://www.youtube.com/watch?v=PevRZAxDxZw
Big wave at beach: http://www.weather.com/blog/weather/8_21326.html
Tacoma narrows bridge: http://video.search.yahoo.com/search/video;_ylt=A2KLqIGXaSdPEn0AIxT7w8QF?p=tacoma+narrows+bridge&b=21&tnr=20
www.cord.eduStanding Wave Characteristics (cont.)
T = 2L/v
fn = n(v/2L) n = 1, 2, 3, …
fn = n(v/4L) n = 1, 3, 5, …
How do I measure
For each of these?
L = l/2
All of these terms are required for the Regents
Amplitude: The height of the wave from node to antinode (transverse waves), or the pressure in a compressive wave. Measured in units describing the wave
Wavelength: The distance traversed by a full cycle of the wave
Node: The “zero point” of the wave
Antinode: The extreme point of the wave (max or min amplitude)
Period: The time between successive waves
Frequency: The rate of occurrence of the wave (in Hertz or cycles / second)
f = 1/T
where T is the period.
Period (if axis is time)
They pass through each other without changing and keep on going.
(Have you ever crossed the beams of two flashlights to see what would happen?)
Two waves of similar frequency
Beat frequency is the difference between them
Fundamental Frequency and Harmonics
the amount of diffraction will
the amount of diffraction
hence velocity, do not change.