Count Prodigy vs Phys. Lab

Count Prodigy is a simple and practical arithmetic APP, where your child can practice, deepen memory, and eventually become an arithmetic genius. Supports the elementary school mathematics addition, subtraction, multiplication and division calculation, has the elementary, intermediate, advanced subject for you to choose, may also count, may also check the wrong question, redo, so that next time will not do wrong, will do after can also delete it. In addition, you can also set your own exam time, the number of subjects, just like in the school exam, oh, after the exam can hand in papers, check historical results. If you like, download it, and then if you think the app is good or have any good suggestions you can also go to the App Store download app comment area below, we will continue to optimize. In addition, the paid version is not advertised.

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.