Home
Class 9
PHYSICS
On which principle of conservation does ...

On which principle of conservation does a rocket work?

A

Mass

B

Energy

C

Momentum

D

Velocity

Text Solution

Verified by Experts

The correct Answer is:
C
Momentum
Promotional Banner

Topper's Solved these Questions

  • FORCE AND LAWS OF MOTION

    KUMAR PRAKASHAN|Exercise QUESTIONS AND ANSWERS(Fill in the blanks :)|10 Videos

  • FORCE AND LAWS OF MOTION

    KUMAR PRAKASHAN|Exercise QUESTIONS AND ANSWERS(Fill in the blanks by selecting the correct alternative from those given in the bracket:)|10 Videos

  • FORCE AND LAWS OF MOTION

    KUMAR PRAKASHAN|Exercise QUESTIONS AND ANSWERS( Answer the following questions in very short :)|20 Videos

  • GRAVITATION

    KUMAR PRAKASHAN|Exercise ACTIVITY 10.4|2 Videos

Similar Questions

Explore conceptually related problems

Answer the questions : On which principle does the solar cooker work ?

State and establish principle of conservation of mechanical energy .

Answer the following questions : (1) On which principle does the solar cooker work? (2) State the two advantages of using the solar cooker. (3) State the two limitations of using the solar cooker.

Answer the following questions : (1) On which principle does the solar cooker work? (2) State the two advantages of using the solar cooker. (3) State the two limitations of using the solar cooker.

Assertion: We cannot change the temperature of body without giving (or taking) heat to (or from) it. Reason: According to principle of conservation of energy, total energy of a system should remains conserved.

On which principle does the electric generator work ?

How does electroscope work ?

Write a principle of non - conservative force for mechanical energy .

Time is homogeneous. Which law of conservation is the result of this ?

Space is homogeneous. Which law of conservation is the result of this ?

KUMAR PRAKASHAN-FORCE AND LAWS OF MOTION-QUESTIONS AND ANSWERS( Choose the correct option from those given below each question :)
  1. What change would occur in acceleration. if the external force acting ...

    Text Solution

    |

  2. Which of the following physical quantity is scalar?

    Text Solution

    |

  3. If a force of 5N acts on an object of mass 2 kg for 2 s. then = what w...

    Text Solution

    |

  4. If a constant force is applied to an object of mass 0.9 kg in stationa...

    Text Solution

    |

  5. What is the momentum of an object of mass m, moving with a velocity v ...

    Text Solution

    |

  6. Momentum of an object is 28 kg ms^(-1). If its velocity is 1.4 ms^(-1)...

    Text Solution

    |

  7. A ball of mass m collides with the ground with velocity and then comes...

    Text Solution

    |

  8. When is the momentum of an object zero?

    Text Solution

    |

  9. kg ms^(-2) is the unit of which physical quan tity?

    Text Solution

    |

  10. On applying force in opposite direction of motion of an object, what e...

    Text Solution

    |

  11. On applying a force of 5N to an object, if acceleration equal to 10 ms...

    Text Solution

    |

  12. A goalkeeper in the game of the football move his hands backwards in o...

    Text Solution

    |

  13. Which of the following statements is not true for an object performing...

    Text Solution

    |

  14. According to the Newton's third law of motion action free and reaction...

    Text Solution

    |

  15. The object due to the property of Inertia can…..

    Text Solution

    |

  16. A traveller tosses a coin in upward direction during his journey in a ...

    Text Solution

    |

  17. An object of mass 2 kg is moving with constant velocity of 4 ms^(-1) o...

    Text Solution

    |

  18. On which principle of conservation does a rocket work?

    Text Solution

    |

  19. A tanker, moving with uniform speed on a horizontal linear road is fil...

    Text Solution

    |

  20. A batsman hits a cricket ball which then rolls on a level ground. Afte...

    Text Solution

    |