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प्रश्न
Name the energy transfers which occur when an electric ball rings.
Name the energy conversion that takes place when an electric bell rings.
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उत्तर
An electric bell converts electrical energy to sound energy.
संबंधित प्रश्न
Does the transfer of energy take place when you push a huge rock with all your might and fail to move it? Where is the energy you spend going?
A ball is placed on a compressed spring. What form of energy does the spring possess? On releasing the spring, the ball flies away. Give a reason.
A body falls freely under gravity from rest. Name the kind of energy it will possess while falling.
Is energy a vector quantity?
State whether the object possess kinetic energy, potential energy, or both :
A flying aeroplane _______________.
State whether the object possess kinetic energy, potential energy, or both :
A stretched spring lying on the ground ____________.
What kind of energy is possessed by the following?
A running car ____________
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 :
Chemical energy into electrical energy.
Name the device or machine which convert :
Heat energy into kinetic energy (or mechanical energy).
Name the device or machine which convert :
Chemical energy into kinetic energy (or mechanical energy).
Name the device or machine which convert :
Chemical energy into heat energy.
Fill in the blanks with suitable words :
The principle of ___________ of energy says energy can be transformed from one form to another, but it cannot be ___________ or ___________.
What kind of energy transformation take place at a hydroelectric power station?
A ball falls to the ground as shown below :
What is the potential energy of ball at B?
Which one of the following is not the unit of energy?
In the case of negative work, the angle between the force and displacement is
