Units of Measure: Scientific Measurements & SI System

From the ProEdify TEAS V prep course, this is part 1 of the lesson on units of measure.
In this introduction to scientific measurements and the SI system (système international), we discuss the scientific definition of a measurement, important SI units of measure and we break down the difference between base and derived quantities.
Our guided learning app for nursing school is coming in 2021! Please sign up at ProEdify.com to receive updates.
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Table of Contents:
What is a unit of measure? - 1:12
Important base properties for TEAS V - 1:50
Base quantities vs Derived Quantities - 2:17
Explanation of unit names in SI system - 3:29
Sources Used in this Video
1) Physics 9th Edition
Cutnell, John D., and Kenneth W. Johnson. "1.2." Physics. Hoboken: John Wiley & Sons, 2012. N. pag. Print.
Media Attributions
1) Hexaaquatitanium(III)-solution.jpg
By Benjah-bmm27 (Own work) [Public domain], via Wikimedia Commons
2) Sphere wireframe 10deg 10r.svg
By Geek3 (Own work) [GFDL (www.gnu.org/copyleft/fdl.html) or CC BY 3.0 (creativecommons.org/licenses/b...)], via Wikimedia Commons

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Several errors in the video: the S.I. unit of pressure is not the Atmosphere but the Pascal = N/m² (Pa). And the derived unit of volume isn't the Liter (correct spelling Litre - like meter correct spelling metre), but the m³. The Litre is recognized as a measure of volume that is used in daily life because of its convenience: 1 Litre of cold pure water weighs approximately 1 Kg. Ps: Litre comes from Greek Λίτρο. And the metre from Greek μέτρον (a measure) and μετρώ (to measure, count or compare).So the correct spelling is Litre - Metre... easy as pie!

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Words are spelled differently in the United States and United Kingdom. U.K tends to interchange the letters 'r'and 'e'in the word. For instance you will have the words Tower, Liter, Meter, as cited in the video. All these words are spelled in the American way. United Kingdom interchanges the letters r and e which then results to the words towre, metre, litre, so on and so forth. There are lots of words spelled differently in the United States and United Kingdom. Supposing you will have the words color, favorite. These words are in the American way of spelling it. In the U.K, it's a different story. The letter 'u' is added after the letter 'o'which then results to colour, favourite, etc. Edit: I Proofread minor incorrect spellings

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4:05 the SI unit for pressure is the Pascal which is N/m² and yes one Newton is 1 kg m/s² . The atm is still in use but it is no longer an SI unit.

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