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Formula Sheet

Measurements and Experimentation — Formula Sheet

ICSE · Class 9 · Physics

20 formulas from Measurements and Experimentation (ICSE Class 9 Physics) on one page, grouped by topic. Part of the ICSE Class 9 Physics syllabus.

44 questions35 flashcards20 formulas & key relations5 concepts

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A labeled diagram of a simple pendulum, showing its components, forces acting on the bob, equilibrium position, and angular displacement, with an emphasis on the small angle approximation for SHM.
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20 Entries · 5 Sections

Formulas and Key Relations

1. Units and Measurement

Physical quantity = (numerical value) × (unit)

L.C. = x/n

L.C. = Pitch of screw / Total number of divisions on circular scale

Correct reading = Observed reading - Zero error (with sign)

2. Length Units and Their Conversions

1 m = 100 cm

1 m = 1000 mm

1 μm = 10^-6 m

1 nm = 10^-9 m

1 f = 10^-15 m

3. Mass Units and Conversions

1 g = 10^-3 kg

1 mg = 10^-6 kg

1 quintal = 100 kg

1 metric tonne = 1000 kg

1 u = 1.66 × 10^-27 kg

4. Time Units and Calendar Facts

1 min = 60 s

1 h = 3600 s

1 day = 86400 s

1 year = 365 days = 3.1536 × 10^7 s

1 leap year = 366 days

Systems of Units and S.I. Units

The result of measurement is written as physical quantity = numerical value × unit.

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Frequently Asked Questions

What are the important topics in Measurements and Experimentation for ICSE Class 9 Physics?
Key topics in Measurements and Experimentation include Systems of Units and S.I. Units, Units of Length, Mass and Time, Derived Units and Writing Units Correctly, Least Count, Vernier Callipers and Zero Error. Study these first, then practise questions on each for Class 9 exams.
How many formulas are in Measurements and Experimentation?
This sheet lists 20 formulas from Measurements and Experimentation, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Measurements and Experimentation for Class 9 exams?
Learn the core ideas first, then work through the 44 practice questions on Measurements and Experimentation. 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 Measurements and Experimentation

All ICSE Class 9 Physics Formula Sheet

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