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MODERN PUBLICATION-WORK, ENERGY AND POWER -Revision Exercise (Very Short Answer Questions)
- What will be the work done in carrying a suitcase of 10 kg while st...
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- Does the work done in moving a body depend on the time in which t...
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- What is the anglee between force and displacement for maximum work ?
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- Can kinetic energy be negative? Explain.
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- Can work done by a non - conservative force be positive ?
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- Which physical quantity represents the area under the force displace...
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- The correct relation between joule and erg is
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- What is the work done by the sun on the earth when the earth revolve...
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- Can P.E. of an object be negative?
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- Is the mechanical energy always conserved ?
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- What will happen to the potential energy of an air bubble in water ...
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- A spring of spring constant k is cut in three equal pieces. The spring...
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- When is KE of a planet revolving around the sun maximum?
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- If K.E of a body is made three times , how will the momentum change...
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- If the momentum of a body is made three times , how will the kineti...
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- A bullet gets embedded in a wooden block. Where does its KE go?
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- One horse power is equal to
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- What is the power ? Write its dimensional formula .
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- How can you say that friction is a non - conservative force ?
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- The work done by the centripetal force in quarter revolution would be,
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