Physics A-Level
Decibel scale
What Decibel scale means in Physics A-Level, as defined for AQA.
Definition of Decibel scale
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Reference: AQA
A scale relating intensity to loudness, where a tenfold intensity increase corresponds to about 10 dB.
Topics that use Decibel scale
- Sensitivity and frequency response (A-level only) (AQA A-Level)
Related terms
- Equal loudness curve
- Intensity
- Inverse-square relationship
- Logarithmic scale
- Loudness perception
- Relative intensity
- Perceived loudness
- Phon
Using Decibel scale in the exam
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