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प्रश्न
उत्तर
When the head of a nail is struck with a hammer, the mechanical energy of the hammer pushes the nail into the plank of wood and in this process a part of energy is converted into heat energy.
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संबंधित प्रश्न
Calculate the change in the Kinetic energy of a moving body if its velocity is reduced to 1/3rd of the initial velocity.
Explain how, geothermal energy is used to generate electricity.
Give one example of a body that has potential energy, in due to its state.
A bucket full of water .is on the first floor of your house and another identical bucket with same quantity of water is kept on the second floor. Which of the two has greater potential energy ?
Name the type of energy (kinetic or potential) possessed by the following:
A bullet fired from a gun.
Give one example to show that the sum of potential energy and kinetic energy remains constant if friction is ignored.
State the work energy theorem.
Name the two groups in which various sources of energy are classified. State on what basis are they classified.
State the energy changes which take place when:
A body thrown vertically upwards from the ground.
Use your brain power!
How do we save fuel by using public transport?
