URIhttp://vishub.org/excursions/1839Is Radioactivity always harmful for humans?enThis Inquiry Learning Space aims at understanding the different types of
radioactivity particles and the basics about radioactivity decay. Factors
that influence the radioactivity intensity (distance from radioactivity
source, exposure time and presence of absorbers) will also be discussed.
The Radioactivity Lab examines the intensity of radiation over distance,
demonstrating the effects of the inverse square law. Students investigate the
intensity of radiation being emitted from a radioactive Strontium-90 source,
by setting distances at which a Geiger counter measures radiation, and
collecting radioactive particle counts at each of these distances. A table
holding the radioactive source is rotated until the source is aligned with a
hole in a thick lead plate. The head holding the Geiger-Muller tube is moved
to these distances from the radioactive source.
Radioactivityradioactivity decayalphabeta gamma particleshierarchical2v2015.08.06finalauthorBEGIN:VCARD
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END:VCARD2015-08-06This date represents the date the author finished the indicated version of the Learning Object.technical implementerBEGIN:VCARD
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END:VCARD2015-08-06This date represents the date the author finished authoring the metadata of the indicated version of the Learning Object.LOMv1.0entext/htmlhttp://vishub.org/excursions/1839browseranyUnzip the zip file and launch excursion.html in your browser.HTML5-compliant web browser and ViSH Viewer v.0.9.1 (http://github.com/ging/vish_editor).mixedlectureslidevery highlearnerother14 - 16mediumPT1H0M0SennoyesLicense: 'Creative Commons Attribution'.