Last modified :¡@ (Average: 2 new java applets/month.)
Virtual Physics Laboratoryat NTNUPhysics
original site English
29 Mirror sites around the world (updated every two months). 
New Applets:
Flash: Which one vanishes?  The world of color
How to translate strings in the java applet into local language format.
1. Reaction Time Measurements

   reaction time and car accident 

2. Traffic light system*

3. Relative Motion (frame of reference)

4. Free Rolling and circular motion¡@

5. Racing ball

6. One Dimensional Motion (XVA)

7. Projectile motion (Cannon to cannon)*

projection motion with air drag
8. Interesting properties of projectile motion

9, Bouncing balls

10. Angular momentum and area

11. Simple Harmonic Motion

12. Spring Force and Simple Harmonic Motion

13. Motion of a Ping-Pong

Dynamics 1. Pendulum

2. Center of Gravity

3. Kepler Motion

   Projectile/Satellite Orbits  (German

4. Pulley

5. Buoyant Force * buoyant

6. Circulation motion and centripetal force

7. One-dimensional collision

8. Two-dimensional collision

9. frictional force and motion

10. In which direction will it roll?

11. Free body Force Diagram




1. Oscillation and wave (spring)

2. Moving point source (Doppler effect/Shock wave)

3. The location of an supersonic airplane

4. Double Slit (interference)

5. Superposition principle of wave

 superposition of pause

6. Fourier Synthesis

7. Transmission of Wave (Reflection and Refraction)

8. Interference between two waves (point sources)

9. Transverse Wave and Longitudinal Wave

   Transverse Traveling Wave

Thermodynamics 1. Molecular model for an ideal gas (PV=NkT)

2. Brownian Motion

3. Carnot heat engine

1. Charged particle motion in uniform E/M Field

2. Propagation of electromagnetic wave*

3. Oscilloscope

4. cyclotron

5. Biot-Savart Law

1. RC circuits (DC) 

2. (DC)V-RLC circuit simulation

3. RLC circuit (AC) 

4. Multimeter VOM




1. reflection/refraction (water/air interface)

2. Thin Lens / mirror *    thin lens combinations

3. Thick Lens java applet

4. Find the fastest Path

5. Physics of Rainbow * (How/Why?)

6. "the world above the water surface" (refraction)

7. shadow/image and mixing colored light

8. Billiards and Physics

9. Fermat principle

10.mixing colored light beams / paint pigments.
   Color Magic show  (Director animation)

modern physics Space and Time in Special Relativity
Others 1. Vernier*

2. Vector Addition

3. Theorem of Pythagoras

Applet marked with * are registered at TIPTOP/VLAB,
Any comments/suggestions about my applets? send me mail

For Physics teachers: Let me know what kind of java applet you would like to see
and I will try to make it for your physics class.
(If you describe it in more detail, you will see it early.)  Click HERE.

Asso. Prof. Fu-Kwun Hwang 

   I am not a professional programmer, I am a physicist.

    I love physics, and I enjoy playing with physics.

    Address: Dept. of physics, National Taiwan Normal University
        #88 Sec 4, Ting-Chou Rd., Taipei, Taiwan 11718
        phone: (886-2)2934-6620 Ext 132 FAX: (886-2) 2932-6408

Links to TIPTOP/VLAB Gamelan Multimedia Physik physics resource