Does Sea Level Change when a Floating Iceberg Melts?

Autor/in	Lan, Boon Leong
Titel	Does Sea Level Change when a Floating Iceberg Melts?
Quelle	In: Physics Teacher, 48 (2010) 5, S.328-329 (2 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0031-921X
DOI	10.1119/1.3393068
Schlagwörter	Oceanography; Water; Physics; Scientific Concepts; Science Experiments; Science Instruction + Suchen Sie Ihr Suchwort? Ozeanografie; Wasser; Physik; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht
Abstract	On the answer page to a recent "Figuring Physics" question, the cute mouse asks another question: "Does the [sea] water level change if the iceberg melts?" The conventional answer is "no." However, in this paper I will show through a simple analysis involving Archimedes' principle that the sea level will rise. The analysis shows the wrong conventional answer is due to the wrong assumption that water from a melted iceberg has the same density as seawater. An iceberg is freshwater ice. The sea level rise is essentially due to the difference in the density of seawater (1024 kg/m[superscript 3]) and freshwater (1000 kg/m[superscript 3]). A simple experiment, suitable as an introductory laboratory exercise, that validates the predicted sea level rise is presented at the end of the paper. (As Provided).
Anmerkungen	American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: pubs@aapt.org; Web site: http://scitation.aip.org/tpt
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10