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Intensity and loudness

Intensity and loudness

Sound intensity is an objective physical quantity, while loudness is the way a human listener judges how strong a sound seems. Intensity is defined as the sound power crossing unit area perpendicular to the wave:

Sensitivity and frequency response (A-level only) Lesson

  1. A Level
  2. /Physics
  3. /Sensitivity and frequency response (A-level only)

Step-by-step lessons on AQA A Level Physics Sensitivity and frequency response (A-level only). Each one builds up to exam-style questions. Physics is one of the most mathematically demanding A Levels -- at least 40% of the marks require maths skills at Level 2 (GCSE) standard or above, so build calculation and graph-handling fluency alongside the conceptual content from the start.

Lessons