sine wave
If you are referring to sound waves, there are many types, including square, sine, saw, triangle and their variations. These pure tones are not found in nature, rather they are created in synthesis. Some tones resemble familiar instruments or sounds - a bell that has pure tone sounds like a sine wave, for example. A saw wave has been likened to brass instruments.
All sine waves both sound and electromagnetic.
it's a sine wave
See the link belowA sine wave is computed by a mathematical function. A pure sine wave in a physical sense would exactly match the calculated value in the function at every point in time.
sine wave
By shifting the sine wave by 45 degrees.
Fourier analysis shows that the saw wave is constructed through manipulation of a sine wave, I can't remember the maths behind it but it's definitely a sine wave.
A periodic wave done using a rope is for example a sine wave. It is the form of Simple Harmonic Motion, and traces the equation y = sin(x) where y=1 and -1 are the peaks.
Sine wave
A sine wave is the graph of y = sin(x). It demonstrates to cyclic nature of the sine function.
The voice is not a sine wave.
a phase shifted sine wave of a different amplitude.
cos wave
A sine wave has no harmonics. It only has a fundamental, so the value of the 2nd, 3rd, and 12th harmonics of a sine wave is zero.
It's called a sine wave because the waveform can be reproduced as a graph of the sine or cosine functions sin(x) or cos (x).
If you are referring to sound waves, there are many types, including square, sine, saw, triangle and their variations. These pure tones are not found in nature, rather they are created in synthesis. Some tones resemble familiar instruments or sounds - a bell that has pure tone sounds like a sine wave, for example. A saw wave has been likened to brass instruments.