NTNUJAVA Virtual Physics Laboratory
Physics Simulations to help you enjoy the fun of physics!
February 10, 2010, 05:27:57 AM *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
News: This site host hundreds of physics related java simulations under create common license. All registered user will be able to get files for offline use when user login and view the simulation. Switch to this new system on 2007/02/14. (previous system2001-2007, 1996-2001) ,Check out Chinese forum to find more simulations and resources in Chinese.
 
   Home   Help Search Login Register  
Know yourself. Questioning. ...Socrates (469-399 BC)
Google Bookmarks Yahoo My Web MSN Live Netscape Del.icio.us FURL Stumble Upon Delirious Ask FaceBook

Pages: [1]   Go Down
  Print  
Author Topic: Spring Force and SHM  (Read 76319 times)
0 Members and 1 Guest are viewing this topic. Click to toggle author information(expand message area).
Fu-Kwun Hwang
Administrator
Hero Member
*****
Offline Offline

Posts: 1966


WWW
« on: January 29, 2004, 03:16:16 PM »

Registed user can get files related to this applet for offline access.
If java program did not show up, please download and install latest Java RUN TIME
There are 4 translations,
Higher number at the end means more translation been done.
or


Spring Force and SHM


    Let us cosider the force exerted on a mass by a spring attached to it.

    This force take the form F = - k X

      Where X measures the displacement of the mass from an equilibrium
      position;

      k is a constant characteristic of the particular spring known as spring constant.


    This force law is known as Hooke's law.

    This Java applet let you familar with this kind of relation and simple harmonic motion¡C







How to play:

There is a spring on the table, a string is connected to the spring
over a light frictionless pulley.

You can attach mass/blocks to the spring :

  1. Move the mouse button with the blocks

  2. The color of those blocks above the mouse pointer will turn black.

  3. Click the mouse button to attach those black blocks to the spring.

  4. The mass of those attached blocks will be shown near another spring (to
    the right).


The spring will relax to its equilibrium position.

You can detach mass/blocks from the spring


  1. Move the mouse button within the region of the attached blocks.

  2. The color of those blocks below the mouse pointer will turn black.

  3. Click the left mouse button to dettach those black blocks to the spring.

  4. If you click the right mouse button and drag it up/down,


  5. the force exerted on the spring will not balance the weight of the mass.

    It will starts to oscillate in simple harmonic oscillation (SHM)


Press the mouse button to suspend the animation, click it again to resume.

Press Stop button to reset the spring back to equilibrium position.

Press Reset button to reset parameters to default values.







    X-axisY-axis
    blue dots displacement Force
    red dotsdisplacement Velocity



Exercises¡G
  1. Find out the spring-constant?

  2. Green dot is the equilibrium position. How to determine the smpiltude of
    the oscillation?

  3. Measure the peroid of the oscillation. What is the relation between mass
    and the period?

  4. What else did you find out?




If a spring with a mass attached to it is slightly stretched or compressed
and then let loose,


Many elastic systems (building, flagpoles, airplane wings, etc) behave
in a very similar fashion.


Registed user can get files related to this applet for offline access.
If java program did not show up, please download and install latest Java RUN TIME
There are 4 translations,
Higher number at the end means more translation been done.
or

* springForce.java (7.98 KB - downloaded 1 times.)
Logged
Fu-Kwun Hwang
Administrator
Hero Member
*****
Offline Offline

Posts: 1966


WWW
« Reply #1 on: September 27, 2009, 10:12:57 PM » posted from:Taipei,T\'ai-pei,Taiwan

This is a EJS version of the above applet!

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!
Logged
Pages: [1]   Go Up
  Print  
Know yourself. Questioning. ...Socrates (469-399 BC)
 
Jump to:  


Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!
Page created in 0.938 seconds with 23 queries.