Intensity proportional to amplitude squared
What Intensity proportional to amplitude squared means in Physics A-Level, as defined for OCR.
Definitions of Intensity proportional to amplitude squared
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
Check what you remember
Read the wording for your board, then hide it and explain Intensity proportional to amplitude squared in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Intensity is proportional to the square of amplitude, so doubling the amplitude quadruples the intensity.
Intensity is proportional to the square of the amplitude, written I ∝ A².
Topics that use Intensity proportional to amplitude squared
- Wave motion (OCR A-Level)
Related terms
- Amplitude
- Compressions and rarefactions
- Diffraction and gap-to-wavelength ratio
- Displacement
- Displacement–distance graph
- Frequency
- Frequency as a source-determined property
- Intensity
Using Intensity proportional to amplitude squared in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Physics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge