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published by the UCLA Department of Physics and Astronomy
written by Martin Simon
This item is an interactive lecture demonstration (ILD) on the topic of inertia.  It features a massive ball suspended by a string with a string below. Using a rod, the demonstrator pulls or jerks down on the lower string. A steady pull always breaks the upper string; a jerk always breaks the lower string.  The action is animated to clearly illustrate how the demonstration should appear in the physics classroom.  

This item is part of a much larger collection of multimedia teaching resources which includes a database of ILD's, simulations, and video clips, compiled by the UCLA Department of Physics and Astronomy.  SEE RELATED ITEMS BELOW for a link to the full collection.

Please note that this resource requires Java Applet Plug-in, or Flash.
Subjects Levels Resource Types
Astronomy
- Astronomy Education
Classical Mechanics
- Newton's First Law
Education Practices
- Active Learning
= Interactive Lecture Demonstration
General Physics
- Collections
- High School
- Lower Undergraduate
- Instructional Material
= Demonstration
- Audio/Visual
= Movie/Animation
Appropriate Courses Categories Ratings
- Physical Science
- Physics First
- Conceptual Physics
- Algebra-based Physics
- AP Physics
- Activity
- Laboratory
- New teachers
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Intended Users:
Educator
Learner
Formats:
image/gif
text/html
Access Rights:
Free access
Restriction:
© 2003 UCLA Physics and Astronomy, 2003.
Keywords:
ILD, Law of Inertia, Newton's First Law, animation, demonstration, inertia, lecture demonstration, mass
Record Cloner:
Metadata instance created January 8, 2009 by Caroline Hall
Record Updated:
September 24, 2009 by Debbie Iby
Last Update
when Cataloged:
January 19, 2008

This resource is part of a Physics Front Topical Unit.


Topic: Dynamics: Forces and Motion
Unit Title: Newton's First Law & Inertia

This animation by the UCLA Demoweb shows how to set up an unusual demo featuring a heavy ball suspended by a string, with a string attached to the bottom.  It provokes thought about the Law of Inertia.  A quick jerk will break the lower string; a slow and steady pull will break the upper string.

Link to Unit:
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Record Link
AIP Format
M. Simon, (UCLA Department of Physics and Astronomy, Los Angeles, 2003), WWW Document, (http://www.physics.ucla.edu/demoweb/demomanual/mechanics/first_law_inertia/inertia_ball.html).
AJP/PRST-PER
M. Simon, UCLA Instructional Resource Lab: Inertia Ball, (UCLA Department of Physics and Astronomy, Los Angeles, 2003), <http://www.physics.ucla.edu/demoweb/demomanual/mechanics/first_law_inertia/inertia_ball.html>.
APA Format
Simon, M. (2008, January 19). UCLA Instructional Resource Lab: Inertia Ball. Retrieved October 1, 2014, from UCLA Department of Physics and Astronomy: http://www.physics.ucla.edu/demoweb/demomanual/mechanics/first_law_inertia/inertia_ball.html
Chicago Format
Simon, Martin. UCLA Instructional Resource Lab: Inertia Ball. Los Angeles: UCLA Department of Physics and Astronomy, January 19, 2008. http://www.physics.ucla.edu/demoweb/demomanual/mechanics/first_law_inertia/inertia_ball.html (accessed 1 October 2014).
MLA Format
Simon, Martin. UCLA Instructional Resource Lab: Inertia Ball. Los Angeles: UCLA Department of Physics and Astronomy, 2003. 19 Jan. 2008. 1 Oct. 2014 <http://www.physics.ucla.edu/demoweb/demomanual/mechanics/first_law_inertia/inertia_ball.html>.
BibTeX Export Format
@misc{ Author = "Martin Simon", Title = {UCLA Instructional Resource Lab: Inertia Ball}, Publisher = {UCLA Department of Physics and Astronomy}, Volume = {2014}, Number = {1 October 2014}, Month = {January 19, 2008}, Year = {2003} }
Refer Export Format

%A Martin Simon
%T UCLA Instructional Resource Lab:  Inertia Ball
%D January 19, 2008
%I UCLA Department of Physics and Astronomy
%C Los Angeles
%U http://www.physics.ucla.edu/demoweb/demomanual/mechanics/first_law_inertia/inertia_ball.html
%O image/gif

EndNote Export Format

%0 Electronic Source
%A Simon, Martin
%D January 19, 2008
%T UCLA Instructional Resource Lab:  Inertia Ball
%I UCLA Department of Physics and Astronomy
%V 2014
%N 1 October 2014
%8 January 19, 2008
%9 image/gif
%U http://www.physics.ucla.edu/demoweb/demomanual/mechanics/first_law_inertia/inertia_ball.html


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The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Style.org: Electronic References.

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UCLA Instructional Resource Lab: Inertia Ball:

Is Part Of UCLA Physics and Astronomy Instructional Resource Lab

This is the portal for the UCLA Instructional Resource Lab, containing links to the ILD's, video clips, simulations, and other multimedia resources for physics and astronomy education.

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