There are many physics competitions. Both physics and chemistry competitions use mathematics, which is based on mathematical calculation. Compared with chemistry competition, there are more places to use mathematics in physics competition, because physics must have calculation steps to get results, and chemistry can be explained simply according to the relationship between elements, so there are more places to use mathematics in physics competition. Mathematics is a science that studies the spatial form and quantitative relationship of the real world. Including arithmetic, algebra, geometry, trigonometry, calculus and so on. It is widely used in physics.