Home
Class 9
PHYSICS
what is law of conservation of energy?...

what is law of conservation of energy?

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

what is law of conservation of linear momentum?

The potential energy of.a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?

what is law of conservation of charge ?

what is law of conservation of angular momentum .

State len's Law of electromagnetic induction. Establish that lenz's Law is the manifestation of Law of conservation of energy.

A planet moving around the sun is a good illustration of the law of conservation of energy. Explain.

Does the law of conservation of energy hold good during interference?

A ballon filled with hydrogen rises upward gaining both kinetic and potential energy.Does it imply violation of conservation of energy?

Write about the principle of conservation of energy in interference and diffraction.

State the principle of conservation of energy.How can it be proved in case of a freely falling body?

R G PUBLICATION-WORK AND ENERGY-EXAMPLE
  1. What are the two forms of mechanical energy?

    Text Solution

    |

  2. Mention names of different forms of energy?

    Text Solution

    |

  3. What do you mean by transformation of energy?

    Text Solution

    |

  4. If force is applied on the body in the direction of motion then ?

    Text Solution

    |

  5. How potential energy is stored in a powerful stretched spring?

    Text Solution

    |

  6. Which energy is stored in wrist watch?

    Text Solution

    |

  7. A body of mass ‘m’ is moving with velocity ‘v' .If the mass of the bod...

    Text Solution

    |

  8. A body of mass ‘m’ is moving with velocity ‘v’: If the velocity is dou...

    Text Solution

    |

  9. Can an object have kinetic energy even if its momentum is zero? Explai...

    Text Solution

    |

  10. If a body of mass m is moving with velocity v then prove that kinetic ...

    Text Solution

    |

  11. Prove that potential energy = mgh.

    Text Solution

    |

  12. what is law of conservation of energy?

    Text Solution

    |

  13. Explain the relationship between energy and power.

    Text Solution

    |

  14. A body age of mass 50 kilogram, what is his weight?

    Text Solution

    |

  15. How much work does a boy of mass 50kg do when he climbs a height 30 me...

    Text Solution

    |

  16. On the body of machine is written 4H.P. Express its power in watt.

    Text Solution

    |

  17. A boy of mass 50 kg runs up to a stair case of 45 steps in 9 s. If the...

    Text Solution

    |

  18. A body of mass 30 kg is raised from the floor to a table height 1 mete...

    Text Solution

    |

  19. What is the kinetic energy of a body of mass 50 kg after it has fallen...

    Text Solution

    |

  20. A 60 watt bulb burns for 5 hours. What is the energy consume?

    Text Solution

    |