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प्रश्न
Fill in the blanks with suitable words:
When a ball is thrown upwards, ___________ energy is transformed into ___________ energy.
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उत्तर
When a ball is thrown upwards, kinetic energy is transformed into potential energy.
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संबंधित प्रश्न
State the condition under which the mechanical energy is conserved.
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 _______________
Fill in the blank with suitable word :
The sum of the potential and kinetic energies of a body is called __________ energy.
Two bodies having equal masses are moving with uniform speeds of v and 2v respectively. Find the ratio of their kinetic energies.
Name the device which converts electrical energy into mechanical energy.
Name the device or machine which convert :
Mechanical energy into electrical energy.
Name the energy transfers which occur when : a torch is on
The device which converts mechanical energy into energy which runs our microwave oven is :
A microphone converts :
