2026, Question 4 · Qualitative Quantitative Translation · 8 points · about 20 minutes
Motion across equipotential lines
Use equipotential lines and energy conservation to compare the speeds and kinetic energies of oppositely charged spheres.
This paper allotted 100 minutes to its four free-response questions. The current exam has 4 free-response questions in 95 minutes. The skills these questions practice still count.
Lessons this question draws on
1 Read the question
The question is College Board's, from the 2026 exam. It starts on page 10 of the PDF.
Open Question 4 (PDF, page 10)
2 Write your answer
Answer each part the way you would on the exam, in full sentences, with your work shown. Your writing saves as you type.
3 Score it
Score your answer against College Board's scoring guidelines, one point at a time. Give yourself a point only when your answer says what the guideline asks for.
Scoring guidelines (PDF, page 9)
Question, scoring guidelines: College Board. The title, summary are ours.