What do you mean amplitude,angular frequency,phase constant and sinusoidal?
Amplitude
Amplitude of a wave is defined as the maximum possible displacement produced in a wave particle with respect to the mean position.
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Angular Frequency
Angular frequency (ω) is defined as the rate at which the angular displacement (θ) of a body around a fixed point changes with time (t). It is represented as
ω = θ/t
so, it basically tells us how a body rotates or moves around a fixed axis.
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Phase
Phase angle (or phase) is the angular displacement of a point on a wave with respect to a certain fixed point, the origin. It also tells us what portion of the wave has elapsed up to that point (taking origin as the starting point).
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Sinusoidal
Sinusoidal means 'sinewave like' which means that the wave (or signal) has a smooth periodic variation about a fixed axis (mean position) in time.