It is divided into National Volume A (National Volume II), National Volume B (National Volume I) and National Volume C. Small languages (Japanese/Russian/French/German/Spanish) use the national unified examination paper, and the provinces have no right to make their own papers. There is no distinction between A, B and C.
The national college entrance examination paper will not lead to differences in teaching materials because of differences in examination questions, and everything will follow the outline proposition of the college entrance examination. After the college entrance examination, the test paper can't be taken away, but it will be sealed and sent to the designated marking place. The marked college entrance examination paper belongs to a kind of college entrance examination file. Candidates can't touch it if they want to keep their college entrance examination paper on file for a period of time.
Experience of preparing for Guangdong college entrance examination physics
1. Breakthrough of "loop current" and "small magnetic needle"-equivalent treatment. The annular current is equivalent to a small magnetic needle, so the motion of the annular current can be judged according to "like charges repel and opposite charges attract". The small magnetic needle is equivalent to a circular current, so the movement of the small magnetic needle can be judged according to "the same current attracts and the opposite current repels".
2. Judging the best breakthrough by "the little needle points"-draw the magnetic induction line where the little needle is located!
3. Breakthrough of the physical "highest point" and "lowest point" in the compound field-the two ends of the diameter coincident with the direction of resultant force are the physical highest points (lowest points).