Physics simulations for understanding

    To understand physics, it is important to visually observe how various phenomena change under different conditions and to recognize the underlying physical principles behind those changes.
    This website uses computer simulations to support high school students in understanding key concepts in high school physics. It is accessible anytime and anywhere via the internet, and can be used not only on PCs but also on tablets and smartphones. I hope you will make use of it not only in the classroom but also for learning at home.
    I would also be grateful if teachers could use it as an ICT teaching material in their classes.

* I am currently in the process of updating to the English version. For pages that are still in Japanese, please use your browser's translation feature.

New！
  Mechanical Energy and Work — Let’s Explore How Work Changes Mechanical Energy has been added. (2024-12-26)
  Friction — Let’s Explore the Motion of Objects Affected by Friction has been added. (2024-12-18)
  We’ll be gradually expanding the content over time.

[ Contents ]
I. Forces and Motion:

1.   Projectile Motion – Let’s Explore Different Types of Projectile Motion!

2.   Laws of Motion – Let’s Explore the Relationship Between Force, Mass, Acceleration, and Motion!

3.   Mechanical Energy and Work – Let’s Explore How Work Changes Mechanical Energy!　New！

4.   Collision of Balls with Mass Ratios of 1:1 and 1:3 – Exploring the Characteristics of an Elastic Collision with a Coefficient of Restitution of 1

5.   Newton's Cradle – Let’s Explore Different Patterns of Collisions Between the Balls!

6.   Frictional Force – Let’s Investigate the Motion of Objects Under the Influence of Friction!　New！

II. Wave Phenomena:

1.   Wave Machine – Let’s Play with Waves!

2.   Wave Machine (Longitudinal and Transverse Waves) – Let’s Explore the Difference Between Longitudinal and Transverse Waves!

3.   Uniform Circular Motion, Simple Harmonic Motion, Sine Waves, and Phase

4.   Displacement, Density, and Phase of Longitudinal Waves

5.   uperposition of Two Pulse Waves

6.   Superposition of Waves (Sawtooth Pulse Wave)

7.   Standing Wave – When Two Opposite Traveling Sine Waves Superpose

8.   Reflection of Waves (Pulse Waves) – What’s the Difference Between Fixed-End Reflection and Free-End Reflection?

9.   Reflection of Waves (Sine Waves) – What’s the Difference in Standing Waves Due to Free-End and Fixed-End Reflection?

10.   Natural Vibrations and Resonance of a String – What Happens When a Periodic Vibration Is Applied to the String?

11.   Beats – When Sine Waves with Different Frequencies and Equal Amplitudes Superpose

12.   Interference of Waves – When Two Circular Waves from Different Sources Superpose

13.   Refraction and Reflection of Waves –Understanding with Huygens' Principle

III. Heat and Gases:

1.   Molecular Motion and the Gas Law – How the Ideal Gas Law Relates to Molecular Motion

IV.Universal Gravitation:

1.   Cannon and Satellites – What Happens as the Speed of the Cannonball Increases?

2.   Various Artificial Satellites – Understanding Satellite Orbits and Geostationary Orbit

3.   Play with a Virtual Star System – Move Planets and Moons to Create a New Star System

4.   Motion of Three Bodies – Enjoy the Unpredictable Motion of the Three-Body Problem

Copyright 2025 KATO Noriyoshi (Since 2019)