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Sticky tape lab

Last updated almost 5 years ago

21 questions

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Question 18

18.

We observed that neither foil (metal atoms) nor paper (non-metal atoms) would attract each other. But foil and paper are both attracted to both the charged tapes (top and bottom).
How can we use the pudding model of atoms to explain the differences we observed?
Several atoms from the paper and foil are drawn on the next page. The ones on the left have no charged object near them. The ones on the right are next to a top tape (+ charge).

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Question 19

19.

Add force vectors to the non-metal (paper) atoms and the top tape in the first row to show the attraction between the paper and the tape. Then do the same for the foil and the tape in the second row. Be sure the size of the vectors shows the relative strengths of the attractions.
Now draw the electrons in each atom “bowl” to show their arrangements when no charged object is near present and then when a charged object is brought near.

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Question 20

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Question 11

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Question 12

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Question 15

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Question 17

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Describe the macroscopic changes in the tapes and then provide a microscopic explanation based on Thomson’s model of the atom and your drawings.

Question 21

21.

Explain why these arrangements of electrons would produce the observed attractions.