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MODERN PUBLICATION-WORK AND ENERGY-EXERCISE
- Write an expression for the work done when a force is acting on an obj...
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- What is electric energy? what is its SI unit?
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- Which physical quantity has a unit electron volt (eV)?
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- Which physical quantity has its unit kWh?
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- Is energy a scalar or a vector quantity? Why?
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- Define kinetic energy?
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- What is mechanical energy?
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- Name the kind of energy stored in a stretched bow.
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- When the height of an object is increased, what happens to its potenti...
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- What type of energy conversion takes place in a thermal power plant?
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- State the law of conservation of energy.
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- What is the relationship between power force and velocity?
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- Seema tried to push a heavy rock of 100 kg for 200s but could not move...
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- At what speed of a body of mass 1 kg will have a kinetic energy of 1J?
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- Identify energy possessed by rolling stone
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- Identify energy possessed by running athelete.
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- How much work is done by a weight lifter when he holds a weight of 80 ...
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- A force of 10 N moves a body with a constatn speed of 2ms^-1. Calculat...
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- A car and a truck are moving with the same velocity of 60 kmh^-1. Whic...
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- What will be the kinetic energy of a body when its mass is made four t...
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