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प्रश्न
What do you understand by the kinetic energy of a body?
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उत्तर
A body in motion is said to possess the kinetic energy. The energy possessed by a body by virtue of its state of motion is called the kinetic energy.
संबंधित प्रश्न
Name the type of energy (kinetic energy K or potential energy U) possessed in the given case:
A stretched wire
Give one disadvantage of using a solar cell.
State two disadvantages of using wind energy for generating electricity.
A pebble is thrown up. It goes to a height and then comes back on the ground. State the different changes in form of energy during its motion.
Name the form of energy in which potential energy can change.
State two advantages and disadvantages of using wind energy for producing electricity.
State the energy changes which take place when:
An air gun is loaded and then fired.
State the energy changes which take place when:
A magnesium ribbon burns in air.
State the energy changes which take place when:
A battery lighting up a bulb.
The solar cooker is an application of the ______ energy of the sun, while solar cells, solar lamps are applications of the ______ energy of the sun.
