9th Class Science Sample Paper Science Olympiad Model Test Paper-6

  • question_answer
    Direction: Questions from are based on the following passage.
    The work has different meanings. However, in physics, it has a special meaning. It represents a special physical quantity which is defined as, 'work is done by a force when the force acting on a body produces motion in it, in the direction of the force applied'. And the work done by the force acting on the object is equal to the product of the force and the displacement of the object in the direction of the force. The amount of work done by a force acting on an object depends on two factors, magnitude of the applied force and displacement of the object. When amount of applied force is increased, amount of work done by the force also increases. Similarly when the amount of displacement of the body in the direction of the applied force is increased, the amount of work done by the force also increases. Work is a scalar quantity means it has only magnitude not direction and unit of the work is joule.
    Which one of the following statements is correct?
    Statement 1: Force is a scalar quantity.
    Statement 2: Force is a vector quantity.

    A) Statement 1

    B) Statement 2

    C) Both statements are correct

    D) Both statements are incorrect

    E) None of these

    Correct Answer: B


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