Science

Science

3Categories 125694Terms

Add a new term

Contributors in Science

Become a Contributors

Science > Acoustics

phon

Science; Acoustics

Two sounds may have the same sound intensity but may not sound equally loud because the human hearing sensitivity varies with frequency. Equal loudness contours which show the ...

control of noise at work regulations

Science; Acoustics

Under the noise at work regulations

acoustic radiation pressure

Science; Acoustics

Unidirectional steady pressure exerted on a surface by an acoustic wave.

bar

Science; Acoustics

Unit of atmospheric pressure, equal to 1000 milibarss, one million dynes per square centimeter, 100 kilopascal or 29.53 inches of mercury.

gram (G)

Science; Acoustics

Unit of mass in the metric system. The kilogram Kg rather than the gram is considered the base unit of mass in the SI units because the gram is so small. The old French spelling ...

noise exposure category (NEC)

Science; Acoustics

Used by local planning authorities to determine the suitability of a proposal for residential development. The 4 noise exposure categories described in PPG24 take account of both ...