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The longitudinal waves in an earthquake are called pressure waves (P-waves) and the transverse waves are called shear waves (S-waves). These two types of waves propagate at different speeds, and the speed at which they travel depends on the rigidity of the medium through which they are traveling.
The amplitude of a wave refers to the maximum amount of displacement of a particle on the medium from its rest position. In a sense, the amplitude is the distance from rest to crest. Similarly, the amplitude can be measured from the rest position to the trough position.
Longitudinal Wave Formula. \ (\begin {array} {l}y (x,t)=y_ {0}cos [\omega (t-\frac {x} {c})]\end {array} \) Where, y is the displacement of the point on the travelling sound wave. x is the distance the point travelled from the wave’s source. t is the time elapsed. y 0 is the amplitude of the oscillations.
Properties of a Progressive Wave. Displacement (x) of a wave is the distance of a point on the wave from its equilibrium position. It is a vector quantity; it can be positive or negative. Amplitude (A) is the maximum displacement of a particle in the wave from its equilibrium position.
11 Ιαν 2024 · amplitude – The maximum displacement of an harmonic wave depends upon how much the driver displaces the medium at the source of the wave. We also found that the amplitude can change (get smaller) when the wave is radiating outward from a point source in 2 or 3 dimensions.
Longitudinal waves are waves where the motion of the material in the wave is back and forth in the same direction that the wave moves. Sound waves (in air and in solids) are examples of longitudinal waves.
Visually, amplitude of a longitudinal wave is related to the closeness of the slinky, or how compressed it becomes during the propagation of the wave. A higher amplitude wave causes the slinky to reach a greater compression as shown on the diagram above.
