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CBSE Class 9th Science Practice Paper SA–II: Set–IV

Oct 27, 2015 17:36 IST

    Find CBSE Class 9 Science Practice Paper for the Sumamtive Assessment – II. These questions will not only help the students to prepare for exams in a better manner, but will also help them in understanding the depth with which a topic should be studied.

    Few sample questions from the Question Paper are given below:

    Q. Which of the observations of Rutherford’s - scattering experiment led to the conclusion that the whole mass of an atom is concentrated at its centre?

    Q. State the various factors which influence the speed of sound?

    Q. Nitin is suffering from a disease due to which he is having a severe headache and painful contraction of muscles of chest and throat. He is doing excessive salvation and has developed hydrophobia, i.e., finds difficulty in the intake of any liquid. Identify the disease Nitin is suffering from. What could be the preventive measures against the disease. Name the treatment used to control the disease.

    Q. What do you mean by nitrogen fixation? Name the bacterium involved in this process. What will happen if the process of nitrogen fixation does not take place?

    Q. (a) A girl weighing 400 N climbs a vertical ladder. Calculate the work done by her in climbing 2 m of height. Given g = 10 m/s.

        (b) A body weighing 100 g is having the kinetic energy of 20 J. Calculate the momentum of the body.

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