How Submarines Work and Density - Experiments and Explanations
Explore the concept of density through experiments with floating and sinking objects. Learn about the density of various materials and how submarines use ballast tanks. Discover how submarines work by adjusting their density to navigate underwater, and find out more about buoyancy and flotation.
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Mais & Dls http://www.kids-science- experiments.com/sinkingorange.html
Mais Is is Mais ann n an m id damhna at i gcorp. C n fath go bhfuil mais difri il ag ruda difri la? Mar is substaint difri la iad, le l on Adaimh difri la. M t an toirt c anna ag ruda , ach mais difri l acu, d irtear go bhfuil dl s difri il acu
Dls Is is Dl s ann n an mhais at ag 1cm3de shubataint. Is iad na h-aonad dl is n gram i ngach cm3 (g/cm3) T dl s difri il ag gach rud Dl s, g/cm3 Substaint Uisce 1 Aer 0.0013 r 19.3 Gloine 2.5 Mearcair 13.6 Al manam 2.7 Pr s 8.5
http://www.cyberphysics.co.uk/topics/for ces/density.htm (v good)
Snmhn (flotation) Sn mhann rud m t dl s n os l aige n dl s an leachta. Sampla : Sn mhann adhmad ar uisce. ir onn bal in Heiliam in Aer Sn mhann leac oighear ar uisce. Conas gur f idir leat sn mh?
Snmhann adhmad ar uisce mar t dls nos sle ag an adhmaid Sn mhann leac oighear ar uisce mar t dl s n os sle ag an leac oighear http://phet.colorado.edu/sims/density-and- buoyancy/buoyancy_en.html
How do submarines (fomhuirean) work? Submarines have an inner and an outer steel shell, called a hull. The area in between the two hulls is called the ballast tank. It can be filled with either air or water. When the submarine is on the surface, the ballast tanks are filled with air and the submarine's overall density is less than that of the surrounding water. http://express.howstuffworks.com/express- submarine1.htm
