ICSE Class 10 Physics Chapter 3 Machines Revision Notes

 

ICSE Class 10 Physics Chapter 3 Machines Revision Notes

 

Revision is very important for better conceptual understanding and securing good marks, and for Revision, Revision Notes are always considered the best. ICSE Class 10 Physics Chapter 3 Machines Revision Notes are one of the most important pieces of study material that students can receive, as it will aid them to study better and reduce the level of stress that students face during the hectic year

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Machines

 

It is a device by which we can either overcome a large resistive force (or load) at some point by applying a small force (or effort) at a convenient point and in the desired direction or by which we can obtain a gain in speed.

 

 

Principle of a Machine

 

When energy is supplied to a machine by applying the effort, it does some useful work.

 

  • The point at which the energy is supplied to a machine by applying the effort is called effort point
  • The point where the energy is obtained by overcoming the load is called load point
  • Input energy = Work is done at effort point = Effort × displacement of the point of application of effort
  • Output energy = Work done at load point = Load × displacement of the point of application of load

 

 

Ideal and Actual Machine

 

An ideal machine is that in which there is no loss of energy in any manner. In an actual machine, the output energy is always less than the input energy.

 

The reasons are:

1. The moving parts in it are neither weightless nor smooth.
2. The string in it (if any) is not perfectly inelastic.
3. Its different parts are not perfectly rigid.

 

 

 

ICSE Class 10 Physics Chapter 3 Machines Revision Notes PDF

 

Machines