A2L Item 134

Goal: Link work and potential change

Source: 283-450 Move q, do most work

For
the following situations consider moving a positive charge from very far
away to the origin along the y-axis. For which situation would you do
the most work?

  1. A
  2. B
  3. C
  4. D
  5. A & C
  6. None of the above.
  7. Cannot be determined

Commentary:

Answer

(1) Students indicating #7 because they do not know if the masses
are charged should not be disconfirmed. If students key on magnitude
only they will likely choose answer #5.