Hi , ive just came back from teaching last nite. I did explain about refraction & diffraction of wave, & the students look a bit blur ..so i gave a 2nd thots & concluded that b4 i go detail about refraction, my student must b able to appreciate these terms; (tak kenal maka tak cinta :)
After reading all these, u guys should check tis out!! Its fun
Amplitude?
As waves travel, they set up patterns of disturbance. The amplitude of a wave is its maximum disturbance from its undisturbed position. Just look at figure above!
Wavelength?
It is the distance between a point on one wave and the same point on the next wave. Usually we take the distance between crest(puncak) to another crest.
Frequency, f?
The frequency of a wave is the number of waves produced by a source each second. It comes from a word 'frequent'(berapa kali), it also means how frequent the wave produced per second.
By formula, f= 1 /T and its unit is Hz.
For example,Your PC might be working with a frequency of 4GigaHertz i.e 4000000000000 numbers of data received per second.
Period, T?
It is the time taken for 1 complete vibration or oscillation of a wave. In formula, T= 1/ f
Speed of wave,v?
the speed of wave represented by a formula, v=f λ i.e the product of frequency and its wavelength.
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5 comments:
but why when i answer definition of wave : length between two peak or crust, my answer was wrong.
i means wavelength
u've to mention betweeen two "successive" cresst
if it is GigaHertz it should be 4000000000 not 4000000000000 (asilah)
haha at last aftr 2 yrs someone has noticed this error..btw thnx for the remindr
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