Detail Page

written by Gary Gladding
published by the University of llinois Physics Education Research Group
This interactive homework problem involves a small ball suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 N/C.  Presuming the ball is in equilibrium when the string makes a 30 ° angle with the vertical, the user is asked to find the net charge on the ball.  This problem is accompanied by a Socratic-dialog "help" sequence designed to encourage critical thinking as users do a guided conceptual analysis before attempting the mathematics.  Immediate feedback for both correct and incorrect responses is provided through each step of the problem-solving.  

This item is part of a larger collection of interactive problems developed by the Illinois Physics Education Research Group.
Subjects Levels Resource Types
Education Practices
- Active Learning
= Problem Solving
Electricity & Magnetism
- Electric Fields and Potential
= Electric Field
Oscillations & Waves
- Oscillations
= Pendula
- Lower Undergraduate
- High School
- Instructional Material
= Activity
= Problem/Problem Set
= Tutorial
Intended Users Formats Ratings
- Learners
- text/html
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Access Rights:
Free access
Restriction:
© 2002 University of Illinois Physics Education Research Group
Keywords:
Newton's Second Law, elecric field, homework problem, interactive problem, net charge, pendulum, problem
Record Cloner:
Metadata instance created February 5, 2008 by Alea Smith
Record Updated:
March 12, 2013 by Lyle Barbato
Last Update
when Cataloged:
June 16, 2006
Other Collections:

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Record Link
AIP Format
G. Gladding, (University of llinois Physics Education Research Group, Urbana, 2002), WWW Document, (http://research.physics.illinois.edu/per/IE/ie.pl?phys102/ie/01/p5new).
AJP/PRST-PER
G. Gladding, Illinois PER Interactive Examples: Pendulum, (University of llinois Physics Education Research Group, Urbana, 2002), <http://research.physics.illinois.edu/per/IE/ie.pl?phys102/ie/01/p5new>.
APA Format
Gladding, G. (2006, June 16). Illinois PER Interactive Examples: Pendulum. Retrieved November 25, 2014, from University of llinois Physics Education Research Group: http://research.physics.illinois.edu/per/IE/ie.pl?phys102/ie/01/p5new
Chicago Format
Gladding, Gary. Illinois PER Interactive Examples: Pendulum. Urbana: University of llinois Physics Education Research Group, June 16, 2006. http://research.physics.illinois.edu/per/IE/ie.pl?phys102/ie/01/p5new (accessed 25 November 2014).
MLA Format
Gladding, Gary. Illinois PER Interactive Examples: Pendulum. Urbana: University of llinois Physics Education Research Group, 2002. 16 June 2006. 25 Nov. 2014 <http://research.physics.illinois.edu/per/IE/ie.pl?phys102/ie/01/p5new>.
BibTeX Export Format
@misc{ Author = "Gary Gladding", Title = {Illinois PER Interactive Examples: Pendulum}, Publisher = {University of llinois Physics Education Research Group}, Volume = {2014}, Number = {25 November 2014}, Month = {June 16, 2006}, Year = {2002} }
Refer Export Format

%A Gary Gladding
%T Illinois PER Interactive Examples: Pendulum
%D June 16, 2006
%I University of llinois Physics Education Research Group
%C Urbana
%U http://research.physics.illinois.edu/per/IE/ie.pl?phys102/ie/01/p5new
%O text/html

EndNote Export Format

%0 Electronic Source
%A Gladding, Gary
%D June 16, 2006
%T Illinois PER Interactive Examples: Pendulum
%I University of llinois Physics Education Research Group
%V 2014
%N 25 November 2014
%8 June 16, 2006
%9 text/html
%U http://research.physics.illinois.edu/per/IE/ie.pl?phys102/ie/01/p5new


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Citation Source Information

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

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Illinois PER Interactive Examples: Pendulum:

Is Part Of Illinois PER: Interactive Examples

This is a link to the full collection of interactive homework problems by the same author.  Complete problem sets are available for both algebra-based and calculus-based courses in introductory physics.

relation by Caroline Hall

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