北京音协考级 vs Phys. Lab

北京音协考级是一款线上社会艺术考级APP，通过线上考级的方式，更好的向社会普及艺术教育，支持线上和线下两种考级场景。考生通过APP可完成报名、缴费、考试、查询成绩、查询证书等流程。在线考级流程更加简单、方便快捷。 功能说明 从报名到考试，实现更方便快捷的考级体验 【考级流程】 从注册登录、报名考级、录制视频，成绩查询、证书查询全部一站式线上服务，轻松完成考级流程 【视频考级】 考生可根据实际录制次数录制多段视频，选择其中录制最佳的视频提交 【模拟考级】 通过模拟练习熟练掌握录制功能

This app simulates primary and secondary school physics experiments, allowing users to understand the basic principles and usage methods of physical experiments through interactive simulation operations. It facilitates the learning, understanding, and review of physical principles, making it suitable for primary and secondary school students and physics enthusiasts to learn and comprehend physics knowledge. It can also be used for classroom teaching demonstrations by teachers and for leisure and entertainment during breaks. The simulated experiments include: 1. Vernier Caliper: Simulates measuring the outer diameter, inner diameter, hole depth, and length of a nut. 2. Balance: Simulates measuring the mass of cherries, rings, and diamonds. 3. Equilibrium of Two Forces: Measures the magnitude and direction of two forces in equilibrium using two spring balances, demonstrating Newton's Third Law. 4. Equilibrium of Three Forces: Measures the magnitude and direction of three forces in equilibrium using three spring balances, demonstrating the parallelogram law of force composition and decomposition. 5. Newton's Second Law: Measures the acceleration of uniformly accelerated linear motion using a 50 Hz punching timer, demonstrating Newton's Second Law. 6. Mechanical Resonance: Demonstrates the resonance principle through the resonance of pendulums with different string lengths. 7. Reflection and Refraction of Light: Demonstrates the laws of reflection and refraction of light by measuring the reflection and refraction angles of lasers with different frequencies in different media. 8. Convex Lens Imaging: Demonstrates the imaging principle of a convex lens by measuring the distances of real and virtual images, the distance of the candle flame, the heights of the real and virtual images, and the height of the candle flame. 9. Ohm's Law: Demonstrates Ohm's Law and Kirchhoff's Voltage and Current Laws by measuring the voltage and current in series circuits, parallel circuits, series-parallel mixed circuits, as well as short circuits and open circuits. The screen supports pinch-to-zoom gestures for easy measurement and observation.