8th Class Science Force and Pressure Question Bank Force and Pressure Summative Subjective Problems

  • question_answer
    Two million molecules per square inch beat against a window pane every second. This force is sufficient to power a steam engine or a turbojet. Such enormous force should shatter the glass into pieces. But this does not happen. Why?

    Answer:

    The molecules in air beat against a window pane at the rate of two million molecules per square inch per second. Such enormous force of pressure of a gas is enough to power a steam engine or turbojet. This impact would shatter the glass if an equal number of molecular blows were not rained against it from the other side of the pane as well.


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