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Sine Wave Notes: Amplitude, Period, Frequency & Wavelength. Prof. Fiore, jfiore@mvcc.edu. Above is a representation of a sine wave, the simplest wave that may be created. It represents the displacement of a simple rotating vector (such as the second hand of a clock). Along the horizontal is the time axis.
Frequency and Period of a Sine Curve. Step 1: Carefully and neatly transfer your sine curve onto the axes below. Next to the graph define the terms period, frequency and cycles per minute. Step 2: In the space below show how you determined the period, frequency and cycles per minute for your graph.
1. One of the most important examples of periodic motion is simple harmonic motion (SHM), in which some physical quantity varies sinusoidally. Suppose a function of time has the form of a sine wave function, y(t) = Asin(2πt / T ) (23.1.1) where A > 0 is the amplitude (maximum value).
There are three attributes to a sine wave: period, amplitude, and phase. We've just covered periodicity. The amplitude “represents the maximum displacement of the varying quantity from its average value” (pg. 39, textbook, John R. Pierce in The Science of Musical Sound). sineGraph4.pd
Sine Waves. The sinusoidal waveform (sine wave) is the fundamental alternating current (ac) and alternating voltage waveform. Electrical sine waves are named from the mathematical function with the same shape. Sine waves are characterized by the amplitude and period. Period.
Frequency signals are usually sine waves, but can also be pulses or square waves. If the frequency signal is an oscillating sine wave, it might look like the one shown in Fig. 17.1.
The length of a wave is called the wavelength or the period. We will use the terms wavelength and period interchangibly. The wavelength can be found by measuring the x-distance between the top of one wave and the top of the next. For y = sin x, the period is 2π.
