@article{WU2026, 
author = {Xiaoming WU and Zhen WANG and Mengli LI},
title = {PRINCIPLES AND APPLICATIONS OF DEALING WITH SMALL APPROXIMATION PROBLEMS IN HIGH SCHOOL PHYSICS COMPETITION QUESTIONS},
year = {2026},
journal = {Physics and Engineering},
volume = {36},
number = {2},
pages = {249-255},
keywords = {small approximation, physics competition, order},
url = {https://www.sciopen.com/article/10.26599/PHYS.2026.9320237},
doi = {10.26599/PHYS.2026.9320237},
abstract = {In the process of physics competition learning, students will inevitably encounter the problem of small-quantity approximation. When to approximate and to what order often puzzles a large number of students, especially in the examination room. Reasonable approximation can bring twice the result with half the effort. This paper helps students determine the order of approximation and thus correctly solve such problems by using the principle of small quantity approximation in two semi-final questions.}
}