NTNUJAVA Virtual Physics LaboratoryEnjoy the fun of physics with simulations! Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/
January 16, 2019, 11:59:53 pm
 Welcome, Guest. Please login or register.Did you miss your activation email? 1 Hour 1 Day 1 Week 1 Month Forever Login with username, password and session length

 Home Help Search Login Register
"In theory, theory and practice are the same. In practice, they are not." ..."Albert Einstein (1879~1955, Mathematical physicist, Nobel Prize 1921-Physics)"

 Pages: [1]   Go Down
 Author Topic: Pendulum sets with different initial angle plus damping  (Read 4619 times) 0 Members and 1 Guest are viewing this topic. Click to toggle author information(expand message area).
ahmedelshfie
Moderator
Hero Member

Offline

Posts: 954

 « Embed this message on: December 06, 2010, 04:39:26 pm » posted from:SAO PAULO,SAO PAULO,BRAZIL

This applet Created by prof Hwang, modified by Ahmed.
Original applet Pendulum sets with different initial angle plus damping
This simulation show 11 pendulums with different initial angle(from minimum angle to minimum angle+angle range)
It can be run in two different modes:
1. $\frac{d^2\theta}{dt}=-\frac{\ell}{g}\sin\theta-b\frac{d\theta}{dt}$ (equation for real pendulum)
2. $\frac{d^2\theta}{dt}\approx-\frac{\ell}{g}\theta-b\frac{d\theta}{dt}$ (equation for small angle approximation :assume $\sin\theta\approx\theta)$

The damping factor b=0 is the default.
You can change it and find out what will happened.
For the second mode: the period and damping factor are the same for all pendulums. Do you know why?

Embed a running copy of this simulation

Embed a running copy link(show simulation in a popuped window)
Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
• Please feel free to post your ideas about how to use the simulation for better teaching and learning.
• Post questions to be asked to help students to think, to explore.
• Upload worksheets as attached files to share with more users.
Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!
 pendulumdamping.gif (16.16 KB, 867x447 - viewed 416 times.) Logged
 Pages: [1]   Go Up
"In theory, theory and practice are the same. In practice, they are not." ..."Albert Einstein (1879~1955, Mathematical physicist, Nobel Prize 1921-Physics)"
Jump to:

 Related Topics Subject Started by Replies Views Last post Pendulum with damping Dynamics Fu-Kwun Hwang 0 15143 June 25, 2008, 01:10:08 pm by Fu-Kwun Hwang Pendulum (Why the angle need to be less than 5 degree --- is it necessary?) Dynamics Fu-Kwun Hwang 0 9592 March 31, 2009, 09:54:09 pm by Fu-Kwun Hwang Pendulum (Why the angle need to be less than 5 degree --- is it necessary?) dynamics ahmedelshfie 0 19677 April 27, 2010, 07:37:26 pm by ahmedelshfie Pendulum sets with different initial angle plus damping Dynamics Fu-Kwun Hwang 5 10840 December 17, 2010, 11:49:42 am by Fu-Kwun Hwang Trajectories for projectile with same speed (different initial angle)+drag force Kinematics Fu-Kwun Hwang 1 12748 December 18, 2018, 12:21:13 pm by Idsint
Page created in 0.274 seconds with 24 queries.since 2011/06/15