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Formula Sheet

Machines

ICSE · Class 10 · Physics

All formulas from Machines in ICSE Class 10 Physics. Key equations, constants, and identities for board exam preparation.

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An infographic illustrating the definitions and relationships between Mechanical Advantage (MA), Velocity Ratio (VR), and Efficiency (η) for machines, including their formulas and how they relate to i
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13 Formulas · 4 Sections

Formulas

Core Concepts and Definitions

Mechanical Advantage, Velocity Ratio, and Efficiency

M.A. = Load (L) / Effort (E)

V.R. = d_E / d_L = Velocity of Effort / Velocity of Load

η = W_output / W_input = (L × d_L) / (E × d_E)

η = M.A. / V.R.

M.A. = η × V.R.

Levers

L × Load arm (BF) = E × Effort arm (AF)

M.A. = Effort arm / Load arm = AF / BF

V.R. = Effort arm / Load arm (for ideal lever)

Pulleys

Single Fixed Pulley: M.A. = V.R. = 1

Single Movable Pulley: M.A. (ideal) = 2, V.R. = 2

Combination of Pulleys (n movable pulleys): M.A. = 2^n, V.R. = 2^n

Block and Tackle (n total pulleys): M.A. (ideal) = n, V.R. = n

Block and Tackle with weight W of lower block: M.A. = n − (W/E)

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Frequently Asked Questions

What are the important topics in Machines for ICSE Class 10 Physics?
Machines covers several key topics that are frequently asked in ICSE Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Machines — ICSE Class 10 Physics?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

Sources & Official References

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

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