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प्रश्न
State the energy changes which take place when:
Food is digested by animals.
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उत्तर
The chemical energy changes into heat energy.
संबंधित प्रश्न
Write true or false of the following statement.
There is always some loss of energy in conversion from one form of energy to another form, so the total energy is not conserved.
Fill in the blank
The energy possessed by a body due to its motion is called ______ energy.
Give one example to show the conversion of potential energy to kinetic energy when put in use.
A body of mass m is moving with a velocity v. Write the expression for its kinetic energy.
What is solar energy?
Show that the quantity 2K/v2 has the unit of mass, where K is the kinetic energy of the body.
State the energy changes which take place when:
Photographic film is exposed to sunlight.
Give one example when:
Potential energy changes to electric energy.
A moving body weighing 400 N possesses 500 J of kinetic energy. Calculate the velocity with which the body is moving. (g = 10 ms2)
When and why do clothes smell of naphthalene?
