10. A B + ACT: Electric Potential Energy When a negative charge is moved from A to B, the electric potential energy of the charge (A) increases (B) is constant (C) decreases C AC: W=0 CB: W<0
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15. Preflight 3.11 The total work required by you to assemble this set of charges is: (1) positive (2) zero (3) negative + + - m m m 1 3 2
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17. Electric Potential (like height) * Mount Tabor Moving to higher potential moving uphill
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22. Preflight Summary A -> B Negative C -> B A -> C Zero Path V final - V initial U = q V W E field Negative Charge + - + - + - Negative Positive Positive Negative
23. Preflight Summary A : B Negative C : B A : C Zero Path V final - V initial EPE = q V W E field Negative Charge + - + - + - Negative Negative Positive Positive Zero Zero Zero Zero Positive Positive Negative Negative
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Editor's Notes
Show large and small battery 9 volt small, 6 volt large
Use book or brick for prop. Ask students if I am doing positive or negative work, what about gravity.
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