Logo
Pattern

Discover published sets by community

Explore tens of thousands of sets crafted by our community.

Physics of Sound

25

Flashcards

0/25

Still learning
StarStarStarStar

Sound Pressure Level (SPL)

StarStarStarStar

The logarithmic measure of the RMS sound pressure of a sound relative to a reference value.

StarStarStarStar

Wave Equation

StarStarStarStar

Describes how sound waves propagate through different media;

v=fλv = f\lambda
where vv is velocity, ff is frequency, and λ\lambda is wavelength.

StarStarStarStar

Faraday's Law of Electromagnetic Induction

StarStarStarStar

States that a change in magnetic field within a closed loop of wire induces an electromotive force (EMF) in the wire.

StarStarStarStar

Inverse Square Law

StarStarStarStar

Describes the decrease in sound intensity as the distance from the sound source increases; specifically, intensity is inversely proportional to the square of the distance from the source.

StarStarStarStar

Reverberation Time

StarStarStarStar

The time it takes for the sound to decay by 60 dB from its initial level in an enclosed space.

StarStarStarStar

Sonic Boom

StarStarStarStar

The sound associated with the shock waves created when an object travels through the air faster than the speed of sound.

StarStarStarStar

Ohm's Acoustic Law

StarStarStarStar

Musical sounds are perceived by the ear as being composed of multiple simple harmonic sounds or tones.

StarStarStarStar

Huygens' Principle

StarStarStarStar

Every point on a wavefront acts as a source of spherical secondary wavelets that spread out in the forward direction at the speed of the wave itself.

StarStarStarStar

Mach Number

StarStarStarStar

The ratio of the speed of an object to the speed of sound in the surrounding medium.

StarStarStarStar

Resonance

StarStarStarStar

The tendency of a system to oscillate at larger amplitude at certain frequencies known as natural frequencies or resonant frequencies.

StarStarStarStar

Intensity of Sound

StarStarStarStar

The power carried by sound waves per unit area, which corresponds to the amplitude squared.

StarStarStarStar

Beat Frequency

StarStarStarStar

Occurs when two sound waves of slightly different frequencies interfere with each other, leading to a fluctuating amplitude perceived as beats.

StarStarStarStar

Impulse Response

StarStarStarStar

Describes how an acoustic system reacts over time to a brief input signal (impulse).

StarStarStarStar

Shock Waves

StarStarStarStar

A type of propagating disturbance that moves faster than the speed of sound in the medium, causing a sudden change in pressure, temperature, and density of the medium.

StarStarStarStar

Timbre

StarStarStarStar

The quality of a sound that distinguishes different types of sound production, such as voices or musical instruments, even when they have the same pitch and loudness.

StarStarStarStar

Snell's Law

StarStarStarStar

The relationship between the angles of incidence and refraction, when referring to waves passing through a boundary between two different isotropic media.

StarStarStarStar

Standing Wave

StarStarStarStar

The interference pattern formed by two waves of the same frequency traveling in opposite directions in the same space.

StarStarStarStar

Critical Angle and Total Internal Reflection

StarStarStarStar

The angle of incidence above which waves are no longer refracted but totally reflected back into the original medium.

StarStarStarStar

Sound Absorption

StarStarStarStar

The process by which the energy of a sound wave is taken up by the medium through which it passes and transformed into other forms of energy, usually heat.

StarStarStarStar

Noise Reduction Coefficient (NRC)

StarStarStarStar

A scalar representation of the amount of sound energy absorbed upon striking a particular surface.

StarStarStarStar

Harmonics

StarStarStarStar

Higher frequency modes of vibration that are integer multiples of a fundamental frequency, contributing to the timbre of a sound.

StarStarStarStar

Fourier's Theorem

StarStarStarStar

Any complex wave can be broken down into a series of sine waves, each with its own amplitude, frequency, and phase.

StarStarStarStar

Doppler Effect

StarStarStarStar

The apparent change in frequency of a sound wave when there is relative motion between the source of the sound and the observer.

StarStarStarStar

Acoustic Impedance

StarStarStarStar

A measure of the opposition that a system presents to the acoustic flow resulting from an acoustic pressure applied to the system.

StarStarStarStar

Anechoic Chamber

StarStarStarStar

A room designed to completely absorb reflections of sound or electromagnetic waves; used to measure the direct sound without any interference from echoes.

Know
0
Still learning
Click to flip
Know
0
Logo

© Hypatia.Tech. 2024 All rights reserved.