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प्रश्न
Give one example when:
Mechanical energy to heat energy.
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उत्तर
Rubbing of palms.
संबंधित प्रश्न
A ball is made to fall freely from a height. State the kind/ kinds of energy possessed by the ball when it is at the ground.
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A piece of stone placed on the roof.
Differentiate between the potential energy (U) and the kinetic energy (K).
What is solar energy?
Name the energy changes for the following:
pendulum
Show that the quantity 2K/v2 has the unit of mass, where K is the kinetic energy of the body.
Give one example when:
Kinetic energy changes to heat energy.
Give one example when:
Potential energy changes to electric energy.
A ball of mass 200 g falls from a height of 5 m. What will be its kinetic energy when it just reaches the ground? (g = 9.8 m s−2)
Obtain an expression for the kinetic energy of a body of mass m moving with a velocity v?
