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Liquid in accelerated motion

Pendrill, Ann-Marie LU and Fägerlind, Carl-Olof (2015) In Physics Education 50(6). p.648-650
Abstract
What happens to a liquid in a swing or a loop? Accelerated motions lead
to effects that may seem surprising. Consider a liquid in a glass placed on
a wooden triangle, in turn attached to a string and moving fast in circle a vertical plane. The surface of the water remains parallel to the bottom of the glass—and orthogonal to the string—as long as gravity and the tension in the string are the only forces acting on the triangle. A key to the understanding is that the tangential acceleration of the liquid, the glass and the triangle, are all identical to the tangential component of the acceleration of gravity.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Acceleration, Liquid, Playground physics
categories
Higher Education
in
Physics Education
volume
50
issue
6
pages
3 pages
publisher
IOP Publishing
external identifiers
  • Scopus:84947284446
ISSN
0031-9120
DOI
10.1088/0031-9120/50/6/648
language
English
LU publication?
yes
id
a8bf5727-aa4f-4564-bea8-616bde473f0f
date added to LUP
2016-04-22 11:40:17
date last changed
2017-01-01 08:23:39
@article{a8bf5727-aa4f-4564-bea8-616bde473f0f,
  abstract     = {What happens to a liquid in a swing or a loop? Accelerated motions lead<br/>to effects that may seem surprising. Consider a liquid in a glass placed on<br/>a wooden triangle, in turn attached to a string and moving fast in circle a vertical plane. The surface of the water remains parallel to the bottom of the glass—and orthogonal to the string—as long as gravity and the tension in the string are the only forces acting on the triangle. A key to the understanding is that the tangential acceleration of the liquid, the glass and the triangle, are all identical to the tangential component of the acceleration of gravity.},
  author       = {Pendrill, Ann-Marie and Fägerlind, Carl-Olof},
  issn         = {0031-9120},
  keyword      = {Acceleration,Liquid,Playground physics},
  language     = {eng},
  number       = {6},
  pages        = {648--650},
  publisher    = {IOP Publishing},
  series       = {Physics Education},
  title        = {Liquid in accelerated motion},
  url          = {http://dx.doi.org/10.1088/0031-9120/50/6/648},
  volume       = {50},
  year         = {2015},
}