As follows:

The model test is usually after a round of review, so a model test paper will be more difficult than the college entrance examination. So many students will get a lot of blows in the model test, but in fact the model test is to test your mastery.

No matter before or after a round of review, there will always be some students who are confident and feel that they have mastered physics well in high school, but a model exam will make you deeply realize that you still have many shortcomings.

The second model test is usually around March. At this time, a round of review has ended for a period of time, and many students have also been exposed to many real college entrance examination questions, and they have some understanding of the way the college entrance examination questions are presented. Therefore, the purpose of the second mode is to check for missing items, so the questions should be comprehensive and the difficulty will be slightly higher than that of the college entrance examination.

In this way, we can better see which parts of knowledge points have not been mastered and which parts have been mastered skillfully after a round of review.

The "Three Models" test paper is close to the college entrance examination to some extent, with the purpose of examining your time allocation in the college entrance examination and your state in the college entrance examination. Three models and four models are to examine the process in the college entrance examination, the mentality during the examination and the time distribution of the answer sheet.

The third mock exam is the last mock exam in high school. This mock exam is very close to the college entrance examination. The school attaches great importance to this mock exam and will reduce the difficulty of the exam appropriately, thus increasing students' self-confidence.

Some schools will also conduct the fifth mock exam, which is mainly used for comfort, so that students can meet the college entrance examination in a relaxed state, so the difficulty of the test paper should be obvious, simple and true. Because many students may not do very well in the first and second modes, but don't worry too much.

In the end, no matter whether it's the same model or three models and four models, every mock exam is carefully arranged by the school and teachers, just to meet the final college entrance examination. Because the purpose of each exam is different, each mock exam is precious enough.