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  5. Friction

8th Class Science Friction Question Bank Friction Formative Objective Problems

  • question_answer
    Cars are designed in particular shapes, called streamline shapes. This is done to increase their speed. Which force is reduced by the streamline shape design?

    A)  Resistance force of air

    B)  Frictional force of road

    C)  Electric force of battery

    D)  Gravitational force of Earth

    Correct Answer: A

    Solution :

      When a car moves, air resists its motion. As a result, cars are designed in streamline shapes. Streamline shapes of cars ensure that this air resistance is minimized. The correct answer is A.


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