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प्रश्न
Name the device or machine which convert :
Chemical energy into heat energy.
उत्तर
A gas stove converts chemical energy into heat energy.
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संबंधित प्रश्न
A stone of mass 500 g is thrown vertically upwards with a velocity of 15 m/s. Calculate:
- the potential energy at the greatest height,
- the kinetic energy on reaching the ground, and
- the total energy at its half-way point.
Is energy a vector quantity?
State whether the object possess kinetic energy, potential energy, or both :
A flying aeroplane _______________.
What kind of energy is possessed by the following?
A compressed spring ____________.
Give two examples where a body possesses both, kinetic energy as well as potential energy.
Name the device or machine which convert :
Mechanical energy into electrical energy.
How much electrical energy in joules does a 100 watt lamp consume : in 1 second?
The hanging bob of a simple pendulum is displaced to one extreme position B and then released. It swings towards centre position A and then to the other extreme position C. In which position does the bob have :
(i) maximum potential energy?
(ii) maximum kinetic energy?
What is the meaning of the symbol kWh? What quantity does it represent?
A microphone converts :
