Pressure/Displacement Amplitude Relationship

Reference from the original Physics I textbook.

Pressure/Displacement Amplitude Relationship

$Δ p_{m} = (v ρ ω) s_{m}$

$Δ p_{m} = Pressure Amplitude (Pa)$
$s_{m} = Displacement Amplitude (m)$
$v = Speed of Sound (m/s)$
$ρ = Density of Medium ({kg/m}^{3})$
$ω = Angular Frequency (rad/s)$

Related Glossary Terms

Sound Waves - Displacement Function, Sound Waves - Pressure Function

Index

Chapter 9 - Sound Waves

Chapter 9 - FFR - Wave-Particles

Glossary and deeper reading · 2 refreshers

These editorial refreshers supplement the reading. Definitions and examples are added guidance; original source wording and recorded answers remain in their original context.

Pressure
Pressure is the normal force per unit area exerted on a surface. It is a scalar measured in pascals, with one pascal equal to one newton per square meter. For example, a gas exerts pressure throughout its volume through many microscopic collisions, even when its bulk motion is zero.
Read more: Pressure in detail →
Amplitude
Amplitude is the maximum magnitude of a repeating disturbance measured from its equilibrium value. It describes the size of the oscillation rather than its frequency or propagation speed. For example, pulling a spring-mounted mass farther from equilibrium increases its oscillation amplitude when it is released from rest.

Pressure/Displacement Amplitude Relationship

Pressure

Amplitude

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