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प्रश्न
Give an example
Electrical energy changes of sound energy.
उत्तर
Electric bell
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संबंधित प्रश्न
Define 1 J of work.
Name a common device where a gear train is used
A force acts on a body and displaces it by a distance S in a direction at an angle θ with the direction of the force. What should be the value of θ to get the maximum positive work?
The energy of a body is its capacity to do .........
Write the expression for work done by a force.
Define the term energy.
What are the two kinds of mechanical energy?
Define 1 joule of work.
If the work done by a force in moving an object through a distance of 20 cm is 24.2 J, what is the magnitude of the force?
Is work done a scalar or a vector physical quantity?
What is the ratio of SI units to CGS units of 'work'?
A coolie, with a load of 30 kg on his head, walks on the platform. If he walks a distance of 60 m, what is the work done by him?
Define Translational motion.
A force can cause an object to change its ______.
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
A wind-mill is lifting water from a well.
