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Machines Class 10 ICSE | Machines Physics ICSE Class 10 | @sirtarunrupani
Google Sir ICSE - Sir Tarun Rupani
Syllabus:
Machines as force multipliers; load, effort, mechanical advantage, velocity ratio and
efficiency; simple treatment of levers, pulley systems showing the utility of each type of machine.
Functions and uses of simple machines: Terms- effort E, load L, mechanical
advantage MA = L/E, velocity ratio VR = VE/VL = dE / dL, input Wi, output Wo,
efficiency η, relation between η and MA, VR derivation included; for all practical
machines η less than1; MA less than VR.
Lever: principle. First, second and third class of levers; examples: MA and VR in each case.
Examples of each of these classes of levers as also found in the human body.
Pulley system: single fixed, single movable, block and tackle; MA, VR and η in each case.
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