8th Class Science Friction Question Bank Friction Conceptive Objective Problems

  • question_answer
    A formula one car is shown in the given figure. Formula one (F1) is one of the most famous and fastest racing events of the world. In this sport, cars can acquire speeds as high as 320 km/hr. One of the reasons of the high speeds is the design of the F1 cars. The shape of the car helps in

    A)  Reducing the air drags

    B)  Reducing the car weight

    C)  Increasing the car efficiency

    D)  Increasing the consumption fuel

    Correct Answer: A

    Solution :

      A force of friction arises when two objects move in contact with each other. The opposing force that acts on an object that is moving in a fluid is called drag. An object that is moving in air must overcome this opposing drag. To reduce this drag,\[{{F}_{1}}\]car is constructed streamline in shape. The given figure shows the direction of air drag with respect to the direction of motion.
    The streamline shape of the\[{{F}_{1}}\]car allows air to flow over its surface easily and smoothly. This helps in achieving a relatively higher speed at a relatively less time and less fuel consumption. The correct answer is A.


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