# PP+ Simple Harmonic Motion

> Virtual lab for exploring simple harmonic motion with spring-mass systems. (iPhone/iPad app by Polyhedron Learning Media, Inc..)

- Source: https://appshunter.io/ios/app/pp-plus-simple-harmonic-motion/id599165859 (this page in markdown: same URL + `.md`)
- Developer: [Polyhedron Learning Media, Inc.](https://appshunter.io/developer/458882328)
- Category: Education, Reference
- Price: $1.99
- Age rating: 4+
- Requires: iOS 18.0 · 115 MB
- Languages: American English
- Released: 2013-02-15
- Data updated: 2026-06-08
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/pp-plus-simple-harmonic-motion/id599165859/reviews.md

## What is PP+ Simple Harmonic Motion?

The Simple Harmonic Motion lab uses a spring-mass system to investigate relationships between the spring constant, mass, amplitude of oscillation, and period of oscillation for a mass on a spring. It is part of Polyhedron Physics Plus, a set of 24 iPad apps for use in the classroom. To see how they work, try the FREE PP+ Newton’s 2nd Law lab. For those who’d prefer to develop their own experiments, the PP Spring Mass System app features a similar apparatus without lab procedures and other supporting materials.

In addition to a 3D simulation that produces realistic data, each lab includes introductory videos, background theory, experimental procedure, analysis and reporting tools, pre-lab quiz, post-lab questions, and teacher support materials. The experimental data produced by the simulations are realistic, including random and systematic errors. These features allow students to use standard data analysis and error analysis techniques to report on their own unique data, just as if the experiment had been performed using hands-on equipment.

These labs can serve as replacements for hands-on labs, especially when equipment is not available, or as supplements to hands-on labs. They are also a suitable option for students in distance learning and home school situations. Formative and summative evaluations showed no significant difference in learning between students using the virtual labs and those using hands-on labs. Preliminary results suggest increased learning by students using the virtual labs as supplements to hands-on.

Polyhedron Physics was developed by Polyhedron Learning Media, Inc. with partial funding provided under contract numbers ED-07-CO-0040 and ED-IES-11-C-0029 from the Institute of Education Sciences in the U.S. Department of Education through the Small Business Innovation Research (SBIR) program.

## Key features

- 3D spring-mass simulation
- Realistic data with errors
- Data analysis and reporting tools
- Introductory videos and background theory
- Pre-lab quiz and post-lab questions
- Teacher support materials

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/pp-plus-simple-harmonic-motion/id599165859/reviews.md

### 2/5 — Not user friendly

*2013-06-24*

App is not easy to use.  The instructions are not very descriptive, and you cannot change the spring constant.  Not worth the money.

## Frequently asked questions about PP+ Simple Harmonic Motion

### What is PP+ Simple Harmonic Motion?

PP+ Simple Harmonic Motion is a virtual lab application that allows users to investigate the relationships between spring constant, mass, amplitude, and period in a spring-mass system. It provides a 3D simulation with realistic data, educational resources, and analysis tools.

### What learning materials are included in PP+ Simple Harmonic Motion?

The app includes introductory videos, background theory on simple harmonic motion, a detailed experimental procedure, analysis and reporting tools, a pre-lab quiz, and post-lab questions. Teacher support materials are also provided.

### Can PP+ Simple Harmonic Motion be used for distance learning?

Yes, the app is suitable for students in distance learning and home school situations. It can serve as a replacement for or supplement to hands-on labs, offering realistic data and analysis capabilities.

### How does the data in PP+ Simple Harmonic Motion compare to real experiments?

The experimental data produced by the simulations are realistic and include random and systematic errors, mimicking data from hands-on equipment. This allows students to practice standard data and error analysis techniques.

### What is the price of PP+ Simple Harmonic Motion?

PP+ Simple Harmonic Motion is a paid application, priced at $1.99. It is a one-time purchase and does not have any in-app purchases or advertisements.

### On which devices can PP+ Simple Harmonic Motion be used?

PP+ Simple Harmonic Motion is designed for iPads. It is compatible with the iPad and is suitable for users aged 4 and above.

### How often is PP+ Simple Harmonic Motion updated?

The app was last updated on January 31, 2026, indicating ongoing support and potential for future improvements. The current version is 1.5.

### Does PP+ Simple Harmonic Motion have ads?

No, PP+ Simple Harmonic Motion is ad-free. As a paid application, it does not contain advertisements, ensuring an uninterrupted learning experience.

## Version history (last 5 releases)

### 1.5 — 2026-01-31

Updated for iPadOS 26.

### 1.4 — 2022-09-17

Updated for compatibility.

### 1.3.1 — 2020-05-12

• updated some screen captures that were mistakenly not updated with the last release

### 1.3 — 2020-05-09

• New icons, splash screen, and app name
• No longer associated with a 3rd party publisher

### 1.2.1 — 2020-02-04

• Fixed problems with some data table input fields.
• Added app preview video.

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## More apps by Polyhedron Learning Media, Inc.

- [Horseshoe Pitch-A-Rama](https://appshunter.io/ios/app/horseshoe-pitch-a-rama/id588787513)
- [PP+ Newton's 2nd Law](https://appshunter.io/ios/app/pp-plus-newtons-2nd-law/id599162351)
- [PP+ Hooke's Law](https://appshunter.io/ios/app/pp-plus-hookes-law/id599165544)
- [PP+ Conservation of Energy](https://appshunter.io/ios/app/pp-plus-conservation-of-energy/id599165724)
- [PP+ Centripetal Force](https://appshunter.io/ios/app/pp-plus-centripetal-force/id599167430)

All apps by Polyhedron Learning Media, Inc.: https://appshunter.io/developer/458882328

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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 2026-06-08.*