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प्रश्न
Fill in the boxe to show the corresponding energy transformation.
उत्तर
Mechanical energy ⇌ electrical energy
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संबंधित प्रश्न
The moon is revolving around the earth in a circular path. How much work is done by the moon?
A man lifts a mass of 20 kg to a height of 2.5 m. Assuming that the force of gravity on 1 kg mass is 10 N, find the work done by the man.
Find the kinetic energy of a body of mass 1 kg moving with a uniform velocity of 10 m s-1.
Fill in the blank with suitable word :
The work done on a body moving in a circular path is __________
In which of the following case the work done by a force will be maximum : when the angle between the direction of force and direction of motion is 0° or 90°?
Why does a spanner have a long handle?
Draw a neat labeled diagram to show the direction of two forces acting on a body to produce rotation in it. Also mark the point about which rotation takes place.
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An electric motor drives a machine which lifts a mass of 4 kg through a height of 10 m in 5 s at a constant speed. Assuming g = 10 ms-2, calculate
(i) the amount of work done, (ii) the power of the machine.
A woman pulls a bucket of water of total mass 5 kg from a well which is 10 s. calculate the power used by her.
State the energy changes which take place when A toy car with a wound spring moves on ground.
State the amount of work done by an object when it moves in a circular path for one complete rotation. Give a reason to justify your answer.
In what way does an ‘Ideal machine’ differ from a ‘Practical machine’?
A man climbs a slope and another walks same distance on level road. Which of the two expends more energy and why?
Explain, why submarines are able to dive underwater as well as a sail on the surface of the water?
What is the difference between renewable and non-renewable resources?
