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| 183_notes:model_of_solids [2021/03/13 19:27] – [The Ball-Spring Model of Matter] stumptyl | 183_notes:model_of_solids [2021/03/13 19:29] (current) – [Modeling tension microscopically] stumptyl |
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| ==== Tension ==== | ==== Tension ==== |
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| [{{ 183_notes:mi3e_04-008.png?50|Free body diagram for the ball}}] | [{{ 183_notes:phy_freebody_3.png?50|Free body diagram for the ball}}] |
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| ==== Modeling tension microscopically ==== | ==== Modeling tension microscopically ==== |
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| [{{ 183_notes:mi3e_04-009.png?100|Each bond extends the same amount.}}] | [{{ 183_notes:vertical_parallel_springsystem.png?100|Each bond extends the same amount.}}] |
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| Consider a very thin wire that is one atom thick. In this case, you can observe what happens to each bond in the wire when a heavy ball is attached to the end of the wire (Figure to the left). **In this case, each bond is "stretched" by roughly the same amount. This is the model to consider when you think "the tension is the same throughout the wire."** | Consider a very thin wire that is one atom thick. In this case, you can observe what happens to each bond in the wire when a heavy ball is attached to the end of the wire (Figure to the left). **In this case, each bond is "stretched" by roughly the same amount. This is the model to consider when you think "the tension is the same throughout the wire."** |