Physics A-Level
Phon
What Phon means in Physics A-Level, as defined for AQA.
Definition of Phon
Check what you remember
Read the wording for your board, then hide it and explain Phon in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The label of each curve, given by the sound intensity level of the 1 kHz reference tone for that curve.
Topics that use Phon
- 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
- Decibel scale
- Perceived loudness
Using Phon in the exam
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