Home
Class 9
PHYSICS
Define 1 J of work....

Define 1 J of work.

Text Solution

Verified by Experts

1 J is the amount of work done by a force of 1N on an object that displaces it through a distance of 1 m in the direction of the applied force.
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Name and define SI unit of work.

A system gives out 30 J of heat and also does 40 J of work. What is the internal energy change?

A system gives out 20 J of heat and also does 40 J of work. What is the internal energy change?

A gas receives an amount of heat equal to 110 J and performs 40 J of work. The change in the internal energy of the gas is

Can a heat engine convert 10J of heat into 10J of work ? Justify

In a process, a system loses 125J of heat when 400 J of work was done on the system. Calculate the change in internal energy.

What is the efficiency of a machine if, of the 1000 J of work done by the effort, 200 J are done in overcoming friction?

A system gives out 30 J of heat and does 75 J of work. What is the internal energy change?

What is the change in internal energy if 10 J of heat is given to system at constant pressure and 20 J of work is done by the system?

NCERT-WORK AND ENERGY-Exercise
  1. An electric heater is rated 1500W. How much energy does it use in 10 ...

    Text Solution

    |

  2. Illustrate the law of conservation of energy by discussing the energy ...

    Text Solution

    |

  3. An object of mass m is moving with a constant velocity upsilon How muc...

    Text Solution

    |

  4. calculate the work required to be done to stop a car of 1500 kg moving...

    Text Solution

    |

  5. In each of the following, a force, F is acting on an object of mass, m...

    Text Solution

    |

  6. Soni says that the acceleration in an object could be zero even when s...

    Text Solution

    |

  7. find the energy in kWh consumed in 10 hours by four devices of power 5...

    Text Solution

    |

  8. A freely falling object eventually stops on reaching the ground. What ...

    Text Solution

    |

  9. A force of 7N acts on an object. The displacement is, say 8m, in the d...

    Text Solution

    |

  10. When do we say that work is done ?

    Text Solution

    |

  11. Write an expression for the work done when a force is acting on an obj...

    Text Solution

    |

  12. Define 1 J of work.

    Text Solution

    |

  13. A pair of bullocks exerts a force of 140 N on a plough. The field bei...

    Text Solution

    |

  14. What is the kinetic energy of an object ?

    Text Solution

    |

  15. Write an expression for kinetic energy of an object.

    Text Solution

    |

  16. The kinetic energy of an object of mass m moving with a velocity of 5 ...

    Text Solution

    |

  17. What is power ?

    Text Solution

    |

  18. Define 1 W of power.

    Text Solution

    |

  19. A lamp consumes 1000 J of electrical energy is 10 s. What is its power...

    Text Solution

    |

  20. Define average power.

    Text Solution

    |