# Phys. Lab — Physics Lab

> Physics Lab (iPhone/iPad app by 坤 冉.)

- Source: https://appshunter.io/ios/app/phys-lab/id6744642758 (this page in markdown: same URL + `.md`)
- Developer: [坤 冉](https://appshunter.io/developer/1759927074)
- Category: Education
- Price: $9.99
- Age rating: 4+
- Requires: iOS 15.6 · 24 MB
- Languages: American English
- Released: 2025-05-06
- Data updated: 2026-08-25
- User reviews in markdown: https://appshunter.io/ios/app/phys-lab/id6744642758/reviews.md

## What is Phys. Lab?

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.


## Version history (last 5 releases)

### 1.1.7 — 2026-08-13

1. Add an "Experimenter" column to the experiment data table;
2. Add Edit and Scroll buttons to the circuit diagram drawing menu of the Ohm's Law experiment table. Scrolling is disabled in edit mode to prevent interference with circuit drawing.

### 1.1.6 — 2026-07-28

1. Add functions for creating experimental projects and recording experimental data;
2. Add functions for viewing and opening historical experimental projects;
3. Add the function of sharing experimental records in Excel file format.

### 1.1.5 — 2025-06-20

Remove the white shadows from the wire plugs.

### 1.1.4 — 2025-06-03

Change the conductor resistance from 0 ohms to 0.01 ohms so that when multiple conductors are short-circuited, they can emit red light and produce smoke simultaneously.

### 1.1.3 — 2025-05-30

1. Fixed the issue where the pointer of the ammeter occasionally failed to correctly indicate the current reading when a short - circuit occurred.
2. Increased the display height to facilitate inserting and removing wires from the upper - row jacks through a magnifying glass.

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## More apps by 坤 冉

- [Optical Path](https://appshunter.io/ios/app/optical-path/id6670541141)
- [Ohm Law](https://appshunter.io/ios/app/ohm-law/id6737541296)
- [Vernier Key](https://appshunter.io/ios/app/vernier-key/id6743193320)

All apps by 坤 冉: https://appshunter.io/developer/1759927074

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*