Physics A-Level
Perceived loudness
What Perceived loudness means in Physics A-Level, as defined for AQA.
Definition of Perceived loudness
Check what you remember
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Reference: AQA
What each curve represents, being constant along a curve and labelled by the 1 kHz level in phons.
Topics that use Perceived loudness
- 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
- Phon
Using Perceived loudness in the exam
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