If you hold a rubber band loosely between two fingers and let it rest against your lips, and then stretch the rubber band, the sensitive skin of your lips will detect a small temperature increase. The rubber band soon returns to its original temperature. A) W is positive, Q is negative B) W is negative, Q is positive C) W is negative, Q is negative D) W is positive, Q is positive

Question

Yahir Fritz

Physics

22 January, 13:09

If you hold a rubber band loosely between two fingers and let it rest against your lips, and then stretch the rubber band, the sensitive skin of your lips will detect a small temperature increase. The rubber band soon returns to its original temperature. A) W is positive, Q is negative B) W is negative, Q is positive C) W is negative, Q is negative D) W is positive, Q is positive

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Answers (1)

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Henry Peterson · Answer 1

A) W is positive, Q is negative

Explanation:

Upon stretching the rubber band we are doing work on it, so the work done is positive as the energy is transferred to the rubber band. When The skin detects the increment in temperature it's because of the heat leaving the rubber band so Q is negative.