Tuesday, December 10, 2013

Work and Energy ::: Class 9th Test

A model question paper for Formative Assessment.

Click here to download. 

Discuss among your group and Contact me if you have any doubt. 

6 comments:

  1. Sir,
    In the 9th question, can we write that the work done depends on the angle between the direction of force applied on a body and the direction of displacement of it?

    With Regards
    Siddharth (IX-C)

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    Replies
    1. Yes Siddharth , We can say that the work done depends on the angle between the direction of force applied on a body and the direction of displacement of it.

      W=F.S
      => W=FxSxCos(angle between F and S)
      so Work done, W, depends upon
      1.Force (F)
      2.Displacement (S)
      3.Angle between F(Force) and S(Displacement).

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  2. sensei, if we keep a fan perpendicular to the radio faced left and then try to hear the sound of radio will it be hard to hear,since the fan would be taking the air particles away?

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    Replies
    1. This is not the right section. Paste this Question in Sound PPT post, I will reply there :)

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  3. Gomenasai .i will do it right away!

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  4. Respected Sir,
    I'm Shubham Agarwal of previous year's class 9C ( Kulachi Hansraj Model School) if u remember by chance.
    I wanted to ask a question that if we connect an ammeter in series and though its showing the reading on the lower part of the ammeter where their is no marking/reading so what can we infer from that? (the connections made are accurate and electricity flowing is uniform)
    Thank You

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