NTNUJAVA Virtual Physics LaboratoryEnjoy the fun of physics with simulations! Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/
December 11, 2018, 12:04:28 pm

Know the universe as yourself and you can live anywhere in comfort. ...Lao Tzu (570-490 BC)

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 Author Topic: Pendulum wave  (Read 25116 times) 0 Members and 1 Guest are viewing this topic. Click to toggle author information(expand message area).
Fu-Kwun Hwang
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 « Embed this message on: March 14, 2009, 06:06:48 pm » posted from:Taipei,T'ai-pei,Taiwan

The following applet simulated a famous pendulum wave.
The length of each pendulum is different so that the frequency of each pendulum is different by a fixed amount.
The frequency of the first one f1 and the difference between near by pendulum can be adjusted by slider.
Because the frequency is too faster to be observed by our eye, so the simulation show slow motion of the real wave by a factor of 100. (You can change time scale,too. Drag the slider to the right to make it faster.)

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Check out youtube movie for pendulum wave

and

 pendulumwave.jpg (23.22 KB, 572x451 - viewed 673 times.)  pendulumwave.png (264.53 KB, 362x420 - viewed 843 times.) Logged
khalifah5
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 « Embed this message Reply #1 on: March 29, 2009, 11:59:48 am » posted from:Petaling Jaya,Kuala Lumpur,Malaysia

i want to ask you about the pendulum. How would the period of a simple pendulum be affected if it was located on the moon instead of the earth?
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Fu-Kwun Hwang
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 « Embed this message Reply #2 on: March 29, 2009, 01:56:34 pm » posted from:Taipei,T\'ai-pei,Taiwan

The period of the pendulum $T=2\pi \sqrt{L/g}$ where L is the length of the pendulum and g is the gravity.　(inversely proportional to square root of gravity)

You should be able to answer your question from the above information if you know how the gravity on the moon compared to gravity on the earth.
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JacobHenry
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 « Embed this message Reply #3 on: October 01, 2013, 02:04:10 am » posted from:,,Satellite Provider

The following applet simulated a famous pendulum wave.
The length of each pendulum is different so that the frequency of each pendulum is different by a fixed amount.
The frequency of the first one f1 and the difference between near by pendulum can be adjusted by slider.
Because the frequency is too faster to be observed by our eye, so the simulation show slow motion of the real wave by a factor of 100. (You can change time scale,too. Drag the slider to the right to make it faster.)

Hello,

I want to view the first applet for my physics class, but it doesn't work. It says the plugin is not supported and it just shows me a gray screen. Do you know how I can fix this?
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Fu-Kwun Hwang
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 « Embed this message Reply #4 on: October 01, 2013, 10:33:42 pm » posted from:,,Satellite Provider

You need to close browser while update the java.

Re-open browser and load the page again, allow the program to run, and it should work fine.

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JacobHenry
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 « Embed this message Reply #5 on: October 04, 2013, 06:17:05 am » posted from:,,Satellite Provider

You need to close browser while update the java.

Re-open browser and load the page again, allow the program to run, and it should work fine.

Thank you so much. I updated to latest Java and it is working now.
 « Last Edit: October 04, 2013, 06:44:01 am by JacobHenry » Logged
Normaz
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 « Embed this message Reply #6 on: December 15, 2015, 06:29:30 pm » posted from:Tiruchengodu,Tamil Nadu,India

The Pendulum Wave is a device that provides such an opportunity. It consists of a series of pendulum with increasing periods that when simultaneously released, produce the effect of a changing transverse wave that cycles back to the -*-beginning conditions-*-.
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Know the universe as yourself and you can live anywhere in comfort. ...Lao Tzu (570-490 BC)