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Define the term potential energy, and de...

Define the term potential energy, and derive its dimensions. Write an expression for the gravitational potential energy of a body of mass m raised to a height h above the earth's surface

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What is the gravitational potential energy of a body of mass m at a height h ?

Expression For Gravitational Potential Energy

Knowledge Check

  • What is the gravitational potential energy of an object located 20,000 m above the earth's surface ?

    A
    `U=-GMm//( 20km+R_E)`
    B
    `U=-GMm//(20,000km +R_E)`
    C
    `U=-GMm//R_E`
    D
    `U=-GMm//(R_E - 20km)`

  • The change in the gravitational potential energy when a body of mass m is raised to a height nR above the surface of the earth is (here R is the radius of the earth)

    A
    `((n)/(n+1))mgR`
    B
    `((n)/(n-1))mgR`
    C
    nmgR
    D
    `(mgR)/(n)`

  • The change in the gravitational potential energy when a body of a mass m is raised to a height nR above the surface of the earth is (here R is the radius of the earth)

    A
    `(mgR)/n`
    B
    `mmgR`
    C
    `(n/(n-1))mgR`
    D
    `(n/(n+1))mgR`

    • Similar Questions

    Explore conceptually related problems

    Define potential energy. Derive an expression for the potential energy of a body of mass m, at a height h above the surface of the Earth.

    Find the gravitational potential energy of a body of mass 200 kg on the earth's surface.

    (a) Explain by an example what is meant by potential energy. Write down the expression for gravitational potential energy of a body of mass m placed at a height h above the surface of the earth. (b) What is the difference between potential energy and kinetic energy ? (c) A ball of mass 0.5 kg slows down from a speed of 5 m/s to that of 3 m/s. Calculate the change in kinetic energy of the ball. State your answer giving proper units.

    What do you mean by gravitational potential energy ? Derive an expression for the gravitational potential energy of an object raised to a height h .

    Find the change in the gravitational potential energy when a body of mass m is raised to a height nR above the surface of the earth. (Here, R is the radius of the earth)

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