CBSE Class 8 Physics Help

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  1. ramana reddy

    What is easier to move a box from rest, or to move it when it is already in motion?

    ramana reddy, Jul 5, 2012
    Replies:
    1
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    1,651
    Devanshi agnihotri
    Jun 20, 2018
  2. g mahesh

    How does the loudness of sound depend upon the amplitude? Explain giving example.

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    2,193
    g mahesh
    Nov 6, 2013
  3. g mahesh

    On which property of vibrations does the loudness of sound depend?

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    518
    g mahesh
    Nov 6, 2013
  4. g mahesh

    What is eardrum? How does it play an important role in hearing?

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    736
    g mahesh
    Nov 6, 2013
  5. g mahesh

    Why does a tabla with tight membrane vibrate at a higher pitch than a tabla with a loose membrane?

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    2,313
    g mahesh
    Nov 6, 2013
  6. ramana reddy

    What is an echo?

    ramana reddy, Jul 7, 2012
    Replies:
    1
    Views:
    530
    g mahesh
    Nov 6, 2013
  7. g mahesh

    Explain in what way noise pollution is harmful to humans.

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    413
    g mahesh
    Nov 6, 2013
  8. g mahesh

    On what factors does the fluid friction depend?

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    375
    g mahesh
    Nov 6, 2013
  9. g mahesh

    What was the reason behind the accident happened to astronaut Kalpana Chawla?

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    727
    g mahesh
    Nov 6, 2013
  10. g mahesh

    Explain the fluid friction?

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    501
    g mahesh
    Nov 6, 2013
  11. g mahesh

    Describe some events when we have reduced the friction.

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    572
    g mahesh
    Nov 6, 2013
  12. g mahesh

    Explain why objects moving in fluids must have special shapes.

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    1,205
    g mahesh
    Nov 6, 2013
  13. g mahesh

    Do liquid molecules show compressibility?

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    390
    g mahesh
    Nov 6, 2013
  14. g mahesh

    Why does the pointed end of the nail gets into wooden plank easily?

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    1,985
    g mahesh
    Nov 6, 2013
  15. g mahesh

    What can be the result of a force applied on an object?

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    573
    g mahesh
    Nov 6, 2013
  16. g mahesh

    What is meant by change in the state of motion?

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    360
    g mahesh
    Nov 6, 2013
  17. g mahesh

    Explain why the rope sometimes does not move in the game of tug-of-war?

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    591
    g mahesh
    Nov 6, 2013
  18. g mahesh

    Name the two forces acting on the rocket immediately after leaving the launching pad.

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    4,708
    g mahesh
    Nov 6, 2013
  19. g mahesh

    How does the force due hammering affect the piece of iron?

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    659
    g mahesh
    Nov 6, 2013
  20. g mahesh

    Give two examples of situations in which applied force causes a change in the shape of an object.

    g mahesh, Nov 6, 2013
    Replies:
    0
    Views:
    728
    g mahesh
    Nov 6, 2013
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