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प्रश्न
Name the device or machine which convert :
Heat energy into kinetic energy (or mechanical energy).
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उत्तर
A steam engine converts heat energy into mechanical energy.
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संबंधित प्रश्न
A pendulum is oscillating on either side of its rest position. The correct statement is:
A metal ball of mass 2 kg is allowed to fall freely from rest from a height of 5 m above the ground. Taking g = 10 m s−2, calculate:
- the potential energy possessed by the ball when it is initially at rest.
- the kinetic energy of the ball just before it hits the ground?
What kind of energy is possessed by the following?
A stone kept on roof-top _______________
What kind of energy is possessed by the following?
A compressed spring ____________.
Name the device or machine which convert :
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(i) maximum potential energy?
(ii) maximum kinetic energy?
How much electric energy in kWh is consumed by an electrical appliance of 1000 watts when it is switched on for 60 minutes?
Name the energy transfers which occur when someone speaks into a microphone.
