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Machines — Flashcards

ICSE · Class 10 · Physics

35 flashcards for Machines (ICSE Class 10 Physics) to test yourself on key terms and facts. Sample: "State the meaning of a machine."

44 questions35 flashcards8 formulas & key relations5 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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35 Flashcards·
MachineBasic termsMechanical advantageVelocity ratioVelocity ratio numericalEfficiency
Card 1Machine

State the meaning of a machine.

Answer

A machine is a device by which a large resistive force called the load can be overcome at some point by applying a small force called the effort at a convenient point and in a desired direction, or by…

Card 2Basic terms

What is the difference between load and effort?

Answer

Load is the resistive force overcome by the machine. Effort is the force applied to the machine to overcome the load. In a simple example, the load is the heavy object and the effort is the force used…

Card 3Mechanical advantage

When does a machine work as a force multiplier?

Answer

A machine works as a force multiplier when mechanical advantage is greater than 1, so load is greater than effort. In that case, a small effort can lift a larger load.

Card 4Mechanical advantage

When does a machine give gain in speed?

Answer

A machine gives gain in speed when effort is greater than load. In this case, mechanical advantage is less than 1, so the machine helps movement at the cost of force.

Card 5Velocity ratio

State the definition of velocity ratio.

Answer

Velocity ratio is the ratio of velocity of effort to velocity of load. Formula: V.R. = Velocity of effort / Velocity of load It also equals the ratio of displacement of effort to displacement of load.

Card 6Velocity ratio numerical

A machine has effort velocity 8 m/s and load velocity 2 m/s. Find the velocity ratio.

Answer

Given: Velocity of effort = 8 m/s, Velocity of load = 2 m/s Formula: V.R. = Velocity of effort / Velocity of load Step 1: V.R. = 8 / 2 Step 2: V.R. = 4 Answer: Velocity ratio = 4, no unit…

Card 7Velocity ratio numerical

If a machine moves effort through 12 m and load through 3 m in the same time, find the velocity ratio.

Answer

Given: dE = 12 m, dL = 3 m Formula: V.R. = dE / dL Step 1: V.R. = 12 m / 3 m Step 2: V.R. = 4 Answer: Velocity ratio = 4, no unit…

Card 8Efficiency

State the definition of efficiency.

Answer

Efficiency is the ratio of useful output work to input work. Formula: η = Woutput / Winput × 100% Unit: no unit, because it is a ratio of two similar quantities. It is usually written in percent.

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Frequently Asked Questions

What are the important topics in Machines for ICSE Class 10 Physics?
Key topics in Machines include Basic Ideas and Functions of a Machine, Mechanical Advantage, Velocity Ratio, and Efficiency, Principle of Machine and Principle of Lever, Classes of Levers and Their Examples. Study these first, then practise questions on each for the ICSE Class 10 board exam.
How many flashcards are available for Machines?
There are 35 flashcards for Machines covering key definitions, facts and ideas. A few sample cards are shown on this page.
How should I revise Machines for the ICSE Class 10 board exam?
Learn the core ideas first, then work through the 44 practice questions on Machines. 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.

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