1. A change in frequency due to the interference of two identical amplituded waves with similiar or identical frequencies
2. Characteristics
2.1. Reflection
2.1.1. A 'bounce' in sound waves after it hits a boundary in between to mediums and propagates towards the initial source
2.2. Refraction
2.2.1. A change in wave direction after the sound waves passes a certain medium
2.3. Interference
2.4. Doppler Effect
2.4.1. A combination of two or more sound waves that occupy the same space. resulting in a change change in frequencies
2.4.2. A change in frequency of a wave in relation to an observer who is moving relative to the wave source
2.5. Beats
3. Implementations
3.1. USG
3.2. Echardiogram
3.3. And many more!
4. Kg/m³
5. Definition
5.1. Mechanical Wave
5.1.1. Requires Medium
5.1.1.1. Solid
5.1.1.1.1. v = √ ( E / ρ )
5.1.1.1.2. Young's Modulus
5.1.1.1.3. ρ = Density
5.1.1.2. Liquid
5.1.1.2.1. v = √ ( B / ρ )
5.1.1.2.2. B = Bulk's Modulus
5.1.1.2.3. ρ = Density
5.1.1.3. Gas
5.1.1.3.1. v = √ ( γ ( RT ) / (M)
5.1.1.3.2. γ = Laplace's Constant
5.1.1.3.3. R = Gas Constant
5.1.1.3.4. T = Temperature
5.1.1.3.5. M = Relative molecule mass
5.2. Transversal Wave
5.2.1. Displacement of the medium is in the same direction as, or the opposite direction to, the direction of propagation
6. Ranges
6.1. Infrasonic
6.1.1. <20 Hz
6.1.1.1. Unaudible to humans
6.2. Audiosonic
6.2.1. 20 Hz - 20.000 Hz
6.2.1.1. Audible to humans
6.3. Ultrasonic
6.3.1. >20.000 Hz
6.3.1.1. Unaudible to humans
6.3.1.2. ehp
7. Velocity
7.1. Kecepatan rambat
7.1.1. v=s/t