ICSE Class 10 Physics 2016 Solved Paper

Question : 5

Total: 73

With reference to the terms Mechanical Advantage, Velocity Ratio and efficiency of a machine, name and define the term that will not change for a machine of a given design.

Solution:

For a machine of a given design, due to friction and weight of the moving parts of machine, the velocity ratio does not change, but both mechanical advantage and the efficiency decreases.
Velocity Ratio : It is the ratio of the velocity of effort to the velocity of load. i.e.,
V.R=‌

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