AP Physics C: Electricity and Magnetism Score Calculator
Section I: Multiple Choice
Section II: Free Response (FRQ)
Your Estimated Results
Understanding the AP Physics C: Electricity and Magnetism Scoring
The AP Physics C: E&M exam is known for being one of the most challenging Advanced Placement tests. Unlike some other AP exams, the curve for Physics C is typically generous because the material (Calculus-based electromagnetism) is highly complex. Using this calculator, you can estimate your performance based on the two primary sections of the exam.
The Scoring Breakdown
The exam is divided into two equally weighted sections:
- Section I (Multiple Choice): 35 questions to be answered in 45 minutes. This section accounts for 50% of your total score. Each correct answer earns 1 point. There is no penalty for guessing.
- Section II (Free Response): 3 questions to be answered in 45 minutes. Each question is worth 15 points, totaling 45 points. This accounts for the other 50% of your total score.
How the Composite Score is Calculated
To find your composite score, the College Board applies a multiplier to ensure both sections are weighted equally out of 90 total points. The formula used in our calculator is:
- MC Composite: (Number of Correct Answers) × 1.2857
- FRQ Composite: (Total FRQ Points) × 1.0
- Total Score: MC Composite + FRQ Composite (Rounded to the nearest whole number)
What is a "Good" Score for AP Physics C: E&M?
Because of the difficulty level, you don't need a perfect score to get a 5. Historically, achieving roughly 55-60% of the total available points (approximately 50+ out of 90) is enough to earn a 5. A score of 3 (Qualified) often requires as little as 35% of the total points. This makes the exam very different from a standard high school classroom test where a 60% might be considered a failing grade.
AP Physics C E&M Score Examples
| MC Correct | FRQ Points | Composite | Predicted AP Score |
|---|---|---|---|
| 22 / 35 | 25 / 45 | 53 | 5 |
| 18 / 35 | 20 / 45 | 43 | 4 |
| 15 / 35 | 15 / 45 | 34 | 3 |
Frequently Asked Questions (FAQ)
No, the AP Physics C: E&M exam does not penalize for incorrect guesses. You should always fill in an answer for every multiple-choice question.
Yes, a scientific or graphing calculator is allowed for the entire exam, including both the multiple-choice and free-response sections.
The calculator uses historical score boundaries provided by the College Board. However, boundaries change slightly every year based on the difficulty of that specific year's exam.