the greater the amplitude, the louder the sound, and the more energy there is.

A sound wave’s amplitude relates to changes in pressure. The sound is perceived as louder if the amplitude increases, and softer if the amplitude decreases. A high amplitude wave carries a large amount of energy; a low amplitude wave carries a small amount of energy.

This is where you have to remember that intensity doesn’t so much measure the amount of energy transferred as it measures the rate at which this energy is transferred. The greater the displacement amplitude, the more intense the wave. Just think of ocean waves for a moment.

The amplitude of a sound wave is a reflection of how much energy is carried, which contributes to the intensity of the sound. Intensity is measured in decibels and is perceived as sound volume. Thus, the volume is proportional to the amplitude of the sound wave. The frequency of a sound wave is perceived as pitch.

When the amplitude of a sound wave is measured by the maximum gauge pressure of the medium in bulk, its intensity is equal to… When the amplitude of a sound wave is measured by the maximum change in density of the medium in bulk, its intensity is equal to……Summary.

Intensity is defined to be the power per unit area carried by a wave. In equation form, intensity I is I=PA I = P A , where P is the power through an area A. The SI unit for I is W/m2.

The approach of the bottom in shallow areas causes the lower portion of the wave to slow down and compress, forcing the wave’s crest higher in the air. Eventually this imbalance in the wave reaches a breaking point, and the crest comes crashing down as wave energy is dissipated into the surf.

The two main types of waves are body waves and surface waves. Body waves can travel through the earth’s inner layers, but surface waves can only move along the surface of the planet like ripples on water. Earthquakes radiate seismic energy as both body and surface waves.

P-waves

Body waves are the waves that can travel through the layers of the earth. They are the fastest waves and as a result, the first waves that seismographs can record….Difference between s waves and p waves.

P-waves travel 60% faster than S-waves on average because the interior of the Earth does not react the same way to both of them. P-waves are compression waves that apply a force in the direction of propagation. The energy is thus less easily transmitted through the medium, and S-waves are slower.

P Waves. High frequency P waves do not weaken, or “attenuate,” as rapidly as S waves so they retain higher frequencies when they arrive at seismic stations. In air, P waves take the form of sound waves and therefore move at the speed of sound, 330m/s at sea level.