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3rd Class Science Matter and Materials Question Bank Matter and Materials

  • question_answer
         Four objects P, Q, R and S of the same shape but different weights, are put into a tank of water. The given diagram shows what happens when they are in water. Which of the following is the most likely weight of object R?

    A)  60 g                           

    B)         35 g                           

    C)         25 g               

    D)                     19 g

    Correct Answer: C

    Solution :

    The object 'R' is floating slightly up the level of object 'Q' thus, it must be lighter than 'Q', but it is floating slightly lower the level of object 'P' thus, it must be heavier than 'P'. Hence, the weight of object 'R' must be between 20 g and 27 g, ie, 25 g.


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