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SL ARORA-Work, Energy and power-EXERCISE
- Moment of a force and work done by a force have same units. What is th...
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- Name and define SI unit of work.
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- How many joules make up one erg ?
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- What do you mean by gravitational unit of work ?
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- State gravitational unit of work in SI.
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- Find the number of joules in the gravitational unit of work in SI.
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- A man runs a distance on a level road. The same man ascends up a hill ...
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- Give an example in which a force does work on a body but fails to chan...
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- Does the work done in moving a body depend on how fast or how slow the...
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- Give an example in which work done is negative.
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- Has an object in motion ability to do work ?
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- Does a single force acting an a particle necessarily change its K.E. a...
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- Can the K.E. of a body be negative
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- Can P.E. of an object be negative?
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- Out of joule, calorie, kilowatt and electron volt, which one is not th...
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- Define mechanical energy and law of conservation of mechanical energy....
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- What type of energy is stored in the spring of a watch?
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- When an air bubble rises in water, what happens to its potential energ...
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- What kind of energy transformations take place at a hydroelectric powe...
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- A spring is cut into two equal halves. How is the spring constant of e...
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