## Website 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 of known magnitude.  Presuming the ball is in equilibrium when the string makes a 30 ° angle with the vertical, students must  determine the net charge on the ball.

This problem is accompanied by a Socratic-dialog "help" sequence designed to encourage critical thinking as students 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.  See Related Materials on this page for a link to the full collection.
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
• Currently 0.0/5

Want to rate this material?
Login here!

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:
August 3, 2016 by Lyle Barbato
Last Update
when Cataloged:
June 16, 2006
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
G. Gladding, (University of llinois Physics Education Research Group, Urbana, 2002), WWW Document, (http://per.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://per.physics.illinois.edu/per/IE/ie.pl?phys102/ie/01/p5new>.
APA Format
Gladding, G. (2006, June 16). Illinois PER Interactive Examples: Pendulum. Retrieved July 23, 2017, from University of llinois Physics Education Research Group: http://per.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://per.physics.illinois.edu/per/IE/ie.pl?phys102/ie/01/p5new (accessed 23 July 2017).
MLA Format
Gladding, Gary. Illinois PER Interactive Examples: Pendulum. Urbana: University of llinois Physics Education Research Group, 2002. 16 June 2006. 23 July 2017 <http://per.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 = {2017}, Number = {23 July 2017}, 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://per.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 2017
%N 23 July 2017
%8 June 16, 2006
%9 text/html
%U http://per.physics.illinois.edu/per/IE/ie.pl?phys102/ie/01/p5new

Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.

Citation Source Information

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.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

### 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

Know of another related resource? Login to relate this resource to it.
Save to my folders