Free-response practice

Mia marks every point and shows a full-credit answer.

Free to try

• Heating a gas under a piston
• Adding a bulb in parallel

In the course

• Pulling apart the plates of a charged capacitor
• A rod pulled along rails in a magnetic field
• Finding the focal length of a lens
• Brighter or bluer light on a metal

Section II of the practice exams

• Practice exam 1, Section IIFree with an account
• Practice exam 2, Section II