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Formula Sheet

Sound — Formula Sheet

ICSE · Class 8 · Physics

5 formulas from Sound (ICSE Class 8 Physics) on one page, grouped by topic. Part of the ICSE Class 8 Physics syllabus.

166 questions34 flashcards5 formulas & key relations5 concepts

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5 Entries · 3 Sections

Formulas and Key Relations

2. Wave Terms and Relations

f = 1/T

time period = 1/frequency

3. Loudness and Amplitude

Loudness ∝ (amplitude)^2, L ∝ a^2

Loudness of wave B / Loudness of wave A = (3 cm)^2 / (2 cm)^2 = 9/4

Decibel Scale and Safe Sound Levels

1 dB = one-tenth of bel.

Full sheet with units and worked examples

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Frequently Asked Questions

What are the important topics in Sound for ICSE Class 8 Physics?
Key topics in Sound include Sound as Energy and Its Propagation, Wave Terms and Relations, Loudness and Amplitude, Decibel Scale and Safe Sound Levels. Study these first, then practise questions on each for Class 8 exams.
How many formulas are in Sound?
This sheet lists 5 formulas from Sound, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Sound for Class 8 exams?
Learn the core ideas first, then work through the 166 practice questions on Sound. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Sound

All ICSE Class 8 Physics Formula Sheet

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