Heat & Friction: How to Tell When Temperature Changes

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Rubbing two books together generates heat due to friction, causing the temperature to rise until the rubbing stops. Once the rubbing ceases, heat dissipates, leading to a decrease in temperature. The discussion highlights the importance of understanding the law of conservation of energy and Newton's law of cooling in explaining these temperature changes. Participants express confusion about the question and seek clarification on the underlying principles. Overall, the conversation emphasizes the relationship between friction, heat generation, and temperature fluctuations.
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Homework Statement


Rub the two books together for a long time, so that the thermometer goes all the way up to the top and all the extra molecules fly off the top book. Keep the books touching, but stop rubbing. The temperature will go down. How can you tell? List two different ways.

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The Attempt at a Solution

 
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I have no idea what the question is. Would you mind elaborating?
 
when you rub two objects together heat is generated and when you stop heat is lost. what is the reason for this?
 
Isaac0427 said:
I have no idea what the question is. Would you mind elaborating?
when you rub two objects together heat is generated and when you stop heat is lost. what is the reason for this?
 
What do you think? What research have you done?

Are you familiar with the law of conservation of energy? What about Newton law of cooling?
 

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