Question 6
What is the relationship between static electricity and current electricity?
The right answer is the one marked above.
They are the same charge — one is resting, the other is flowing. There is one sort of electric charge in this chapter. The two names describe what it happens to be doing.
Activity 19.1 is the proof: the charge on the rod was static, and the moment it was given a path it became a current without changing into anything else.