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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.

45 questions20 flashcards5 concepts

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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 · 3 Sections

Formulas

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?
Key topics in Machines include Common Misconceptions in Machines — Topic Map, Complete Concept Map of Chapter: Machines, Chapter Concept Hierarchy – Machines. These are the concepts ICSE Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Machines — ICSE Class 10 Physics?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and 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.

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