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What are the two forms of mechanical ene...

What are the two forms of mechanical energy?

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(a) Give a simple example to prove that heat is a form of mechanical energy. (b) Name three devices/industries in which heat energy is put to some useful work.

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Knowledge Check

  • The two basic forms of mechanical energy are:

    A
    PE and KE
    B
    Sound and Light
    C
    Heat and tidal
    D
    Solar and wind

  • The usable form of mechanical energy is:

    A
    Elastic potential energy
    B
    Kinetic energy
    C
    Gravitational potential energy
    D
    None of the given options.

  • A ball bounce of 80% of its original height . What fraction of its mechanical energy is lost in each bounce ?

    A
    `0.20`
    B
    `0.60`
    C
    `0.40`
    D
    `1`

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    Give an example of mechanical energy

    Two satellites P and Q ratio of masses 3:1 are in circular orbits of radii r and 8r . Then ratio of total mechanical energy of A to B is

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