7th Class Science Heat Question Bank Heat

  • question_answer
    Why are two thin blankets piled together warmer than a single one of the same total thickness as the two?

    A)  Air is enclosed in between them.

    B)  The outer thin blanket transfers heat faster.

    C)  Air acts as medium to transfer the energy.

    D)  There is a decrease in the sensation of touch.

    Correct Answer: A

    Solution :

    Air is trapped in between the two blankets. As air is a bad conductor of heat, the heat is retained inside the blanket, thus, preventing the cold air to enter inside it.


You need to login to perform this action.
You will be redirected in 3 sec spinner