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## Detail Page

written by Gary Gladding
published by the University of llinois Physics Education Research Group
This interactive homework problem for introductory physics relates to interacting forces in a system featuring an incline plane with a 30-degree angle, two blocks of different masses, and an ideal pulley. Students must determine the acceleration of the block moving up the incline.  A user-activated "help" sequence is provided for each step of the problem-solving, including conceptual analysis, free-body diagrams, and tips to set up the calculations.  Immediate feedback is received for both correct and incorrect responses.
Editor's Note: This problem promotes understanding of the overall picture of multiple forces in a system. In particular, it addresses the misconception that the tension forces acting on the ideal pulley are different in magnitude. The author deftly guides learners in overcoming this conceptual struggle.
Subjects Levels Resource Types
Classical Mechanics
- Motion in Two Dimensions
= 2D Acceleration
- Newton's Second Law
= Interacting Objects
Education Practices
- Active Learning
= Problem Solving
- High School
- Instructional Material
= Activity
= Best practice
= Problem/Problem Set
= Tutorial
Appropriate Courses Categories Ratings
- Conceptual Physics
- Algebra-based Physics
- AP Physics
- Activity
- Assessment
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Intended User:
Learner
Format:
text/html
Access Rights:
Free access
Restriction:
© 2006 University of Illinois Physics Education Research Group
Keywords:
acceleration, ideal pulley, incline, incline plane, net force, tension force
Record Cloner:
Metadata instance created January 28, 2008 by Alea Smith
Record Updated:
January 7, 2015 by Caroline Hall
Last Update
when Cataloged:
August 31, 2014
Other Collections:

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AIP Format
G. Gladding, (University of llinois Physics Education Research Group, Urbana, 2006), WWW Document, (https://per.physics.illinois.edu/per/IE/ie.pl?phys111/ie/03/IE_two_blocks).
AJP/PRST-PER
G. Gladding, Illinois PER Interactive Examples: Two Blocks (University of llinois Physics Education Research Group, Urbana, 2006), <https://per.physics.illinois.edu/per/IE/ie.pl?phys111/ie/03/IE_two_blocks>.
APA Format
Gladding, G. (2014, August 31). Illinois PER Interactive Examples: Two Blocks. Retrieved September 7, 2024, from University of llinois Physics Education Research Group: https://per.physics.illinois.edu/per/IE/ie.pl?phys111/ie/03/IE_two_blocks
Chicago Format
Gladding, Gary. Illinois PER Interactive Examples: Two Blocks. Urbana: University of llinois Physics Education Research Group, August 31, 2014. https://per.physics.illinois.edu/per/IE/ie.pl?phys111/ie/03/IE_two_blocks (accessed 7 September 2024).
MLA Format
Gladding, Gary. Illinois PER Interactive Examples: Two Blocks. Urbana: University of llinois Physics Education Research Group, 2006. 31 Aug. 2014. 7 Sep. 2024 <https://per.physics.illinois.edu/per/IE/ie.pl?phys111/ie/03/IE_two_blocks>.
BibTeX Export Format
@misc{ Author = "Gary Gladding", Title = {Illinois PER Interactive Examples: Two Blocks}, Publisher = {University of llinois Physics Education Research Group}, Volume = {2024}, Number = {7 September 2024}, Month = {August 31, 2014}, Year = {2006} }
Refer Export Format

%A Gary Gladding %T Illinois PER Interactive Examples: Two Blocks %D August 31, 2014 %I University of llinois Physics Education Research Group %C Urbana %U https://per.physics.illinois.edu/per/IE/ie.pl?phys111/ie/03/IE_two_blocks %O text/html

EndNote Export Format

%0 Electronic Source %A Gladding, Gary %D August 31, 2014 %T Illinois PER Interactive Examples: Two Blocks %I University of llinois Physics Education Research Group %V 2024 %N 7 September 2024 %8 August 31, 2014 %9 text/html %U https://per.physics.illinois.edu/per/IE/ie.pl?phys111/ie/03/IE_two_blocks

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

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### Illinois PER Interactive Examples: Two Blocks:

Is Part Of Illinois PER Interactive Examples: Full Collection

A link to the full collection of interactive homework problems by the same author.

relation by Caroline Hall
Is By The Same Author and Covers a Similar Topic As Illinois PER Interactive Examples: Two Blocks on an Incline

This is a closely related problem by the same author in which the blocks of the system are equal in mass, but subject to a frictional force.

relation by Caroline Hall

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Is Part Of Is By The Same Author and Covers a Similar Topic As