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प्रश्न
A boy sits and stands repeatedly. Draw a graph showing the variation of potential energy with time.
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उत्तर
संबंधित प्रश्न
Fill in the blank
The energy possessed by a body due to its motion is called ______ energy.
Give one relevant example for the following transformation of energy:
Electrical energy to heat energy.
A body of mass m is moving with a velocity v. Write the expression for its kinetic energy.
Name the energy changes for each of the following cases:
dynamo
What kind of energy is possessed in a situation when?
A horse running along a level road
What kind of energy is possessed in a situation when?
An electron spinning around the nucleus.
State two advantages and disadvantages of using wind energy for producing electricity.
State the energy changes which take place when:
Water freezes in the freezing chamber of a fridge.
What is the form of that graph between
(i) K.E. and velocity for a constant mass?
(ii) K.E. and mass for a constant velocity?
Calculate the kinetic energy of a body of mass 0.1 kg. and momentum 40kg m/s.
