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Perceived effect on buoyancy of weight vs. gravitational force
written by Doris J. Wagner and Samuel Harryman
As part of a larger investigation into students' conceptions about buoyancy, we investigated the prevalence of the belief that the gravitational force on an object changes when the object is placed in a fluid. We also investigated the effect of describing the force as "weight" instead of "gravitational force." During the first phase of the study (Winter 2016 to Fall 2016), students at two different institutions were asked to identify the correct free-body diagram (FBD) for a ball floating in water, and then for the same ball held down while fully submerged under water. Half of the students were shown FBDs involving "weight," and the other half were shown FBDs involving the "gravitational force." During the second phase of the study (Fall 2017 to Spring 2019), students at one of the institutions were asked to explicitly compare the strength of either the weight or the gravitational force on the ball when it was falling, floating, and held submerged. This paper will report on the fraction of students who indicated that the weight or gravitational force differed between the scenarios and will discuss the effects of both the question asked and the wording used to describe the force.
Physics Education Research Conference 2019
Part of the PER Conference series
Provo, UT: July 24-25, 2019
Pages 591-596
Subjects Levels Resource Types
Education - Applied Research
- Instructional Material Design
= Problem/Question
Education - Basic Research
- Assessment
= Conceptual Assessment
- Cognition
- Learning Theory
= Representations
Fluid Mechanics
- Statics of Fluids
= Density and Buoyancy
- Lower Undergraduate
- Reference Material
= Research study
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Format:
application/pdf
Mirror:
https://doi.org/10.1119/perc.2019…
Access Rights:
Free access
License:
This material is released under a Creative Commons Attribution 3.0 license. Further distribution of this work must maintain attribution to the published article's author(s), title, proceedings citation, and DOI.
Rights Holder:
American Association of Physics Teachers
DOI:
10.1119/perc.2019.pr.Wagner
Keyword:
PERC 2019
Record Creator:
Metadata instance created December 31, 2019 by Lyle Barbato
Record Updated:
January 2, 2020 by Lyle Barbato
Last Update
when Cataloged:
December 31, 2019
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Record Link
AIP Format
D. Wagner and S. Harryman, presented at the Physics Education Research Conference 2019, Provo, UT, 2019, WWW Document, (https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15221&DocID=5136).
AJP/PRST-PER
D. Wagner and S. Harryman, Perceived effect on buoyancy of weight vs. gravitational force, presented at the Physics Education Research Conference 2019, Provo, UT, 2019, <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15221&DocID=5136>.
APA Format
Wagner, D., & Harryman, S. (2019, July 24-25). Perceived effect on buoyancy of weight vs. gravitational force. Paper presented at Physics Education Research Conference 2019, Provo, UT. Retrieved September 19, 2020, from https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15221&DocID=5136
Chicago Format
Wagner, Doris J., and Samuel Harryman. "Perceived effect on buoyancy of weight vs. gravitational force." Paper presented at the Physics Education Research Conference 2019, Provo, UT, July 24-25, 2019. https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15221&DocID=5136 (accessed 19 September 2020).
MLA Format
Wagner, Doris J., and Samuel Harryman. "Perceived effect on buoyancy of weight vs. gravitational force." Physics Education Research Conference 2019. Provo, UT: 2019. 591-596 of PER Conference. 19 Sep. 2020 <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15221&DocID=5136>.
BibTeX Export Format
@inproceedings{ Author = "Doris J. Wagner and Samuel Harryman", Title = {Perceived effect on buoyancy of weight vs. gravitational force}, BookTitle = {Physics Education Research Conference 2019}, Pages = {591-596}, Address = {Provo, UT}, Series = {PER Conference}, Month = {July 24-25}, Year = {2019} }
Refer Export Format

%A Doris J. Wagner
%A Samuel Harryman
%T Perceived effect on buoyancy of weight vs. gravitational force
%S PER Conference
%D July 24-25 2019
%P 591-596
%C Provo, UT
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15221&DocID=5136
%O Physics Education Research Conference 2019
%O July 24-25
%O application/pdf

EndNote Export Format

%0 Conference Proceedings
%A Wagner, Doris J.
%A Harryman, Samuel
%D July 24-25 2019
%T Perceived effect on buoyancy of weight vs. gravitational force
%B Physics Education Research Conference 2019
%C Provo, UT
%P 591-596
%S PER Conference
%8 July 24-25
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15221&DocID=5136


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