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# Standing waves Vs Travelling waves watch

1. Hi pls cud someone tell me how to explain both of these types of waves. A definition of standing waves wud be nice too as i dnt really kno how to define it.
2. standing wave is a wave with no net transfer of energy in the direction of the wave, and a travelling, or progressive wave, is one with a net transfer of energy in the direction of the wave, I think.
3. progressive waves transfer energy from one place to another, e.g light/sound waves.
Stationary waves do not transfer energy, they store energy.

standing waves can be produced by the itnerference of 2 progressive waves which are moving in opposite directions. they can also be formed by reflectinga progressive wave and allowing the reflected wave to interfer with the oncoming wave.

You need to know the standing wave patterns [nodes and anti nodes]. This may turn up in phy6 in great detail or phy4.

I.E
distance between 2 adjacent nodes = lambda/2

You need to also know about phase relationship,

i.e all points in a given half wavelength are in phase with each-other. however, all points in a given wavelength are completly out of phase with all the points in the next half wavelength. - standing waves/stationary waves

copy n paste that mate, i'm sure it is 100% correct and you will 70% need it for phy4/phy6.
4. thanks guys . ive also found a thread in here that explains it too. i was paniking cos i thought the thread just vanished.
5. (Original post by andyj72)
thanks guys . ive also found a thread in here that explains it too. i was paniking cos i thought the thread just vanished.
And if you need anymore-check out 'A physics assignemtment-waves' posted 2 wks ago in the physics section of the forum if you havent already seen it.
6. (Original post by sazzarooo)
And if you need anymore-check out 'A physics assignemtment-waves' posted 2 wks ago in the physics section of the forum if you havent already seen it.
no, i havent seen it. ill check it out. thanx
7. (Original post by andyj72)
no, i havent seen it. ill check it out. thanx

No problemo. Good luck!

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