1. Set an example: As a role model for students, class representatives should be strict with themselves, take the lead in learning, actively answer questions, improve their grades and establish prestige.

2. Assistant teachers: Class representatives should set an example, be honest and fair, be serious and responsible, be proactive, help teachers maintain discipline and narrow the distance between teachers and students.

3. Preparation of learning content: class representatives need to prepare the learning content of the day before class and write it on the blackboard.

The responsibilities of physics class representatives are not limited to daily homework management, but also include supporting experimental activities and feeding back the learning situation, thus becoming a bridge between physics teachers and classmates.