The matter of the universe

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The matter of the universe

  1. 1. THE MATTER OF THE UNIVERSE<br />
  2. 2. THE MATTER OF THE UNIVERSE<br />THE MATERIALS THAT FORM THE UNIVERSE . Thewholeknownuniverseisformedbythesamematerials. ThematerialsthatformtheEarth are thesameonesthatformtheMoon, JupiterortheSun.<br />MATTER: Itiseverythingthat has mass and volume<br />SUBSTANCE: Itiseachonethedifferentmattertypes<br />PROPERTIES OF MATTER:<br />General properties: they are thosethatallmatter shares and alllowsustorecognizematter. There are general properties:<br />MASS: Itisthequantity of matterthat a body has<br />VOLUME: Itisthespacethatoccupiesthismatter<br />Specificproperties: They are thosethatallowustodifferentiatesomematerialsfromothers. Someones are: thecolour, theshine, thesize, theform, thehardness, thedensity, theellasticity, etc.<br />
  3. 3. THE MATTER OF THE UNIVERSE<br />MEASURE OF MATTER:<br />Magnitude: Itisanyproppierty of matterthatyou can measure, forexample: theweight, thelength, thespeed, etc.<br />Tomeasure: Itis compare a magnitudewiththeunit, fotr ex.: 3 kg., 2m., 50 km/h, etc.<br />International System of Units ( S.I.): Almostallthecountries of theworldhaveadoptedthissystem of units, so thatalmosteverybodymeasures in thesameway.<br /> In thefollowing chart we can seethemostimportantunits<br />
  4. 4. THE MATTER OF THE UNIVERSE<br />
  5. 5. THE DENSITY:<br />Density: Itistherelationshipbetweenthemass of a body and thevolumethatitoccupies. Mathematicallyitisexpressedthisway.<br />d=m/v ( density = mass/ volume)<br />Themostimportantunittomeasurethedensityisthe g/ cm3, itisalsousedkg/m3.<br />Mass: itisthequantity of matterthat a body has. Themassdoesn´tvaryfromone place toanother; a body has thesamemass of theEarthortheMoon. Themostimportantunitisthekg.<br />THE MATTER OF THE UNIVERSE<br />
  6. 6. Weight: ItistheforcewithwichtheEarthattracts a body. Theweightvariesfromone place toanother; onebodydoesn´thavethesameweightontheEarthorontheMoon. Wewillstudytheunitslater.<br />Volume: Itisthespacethat a bodyoccupies, orhowbigorsmallthatitis, themostimportantunitisthem3, althoughthesmallestbodies are measured in cm3<br />THE MATTER OF THE UNIVERSE<br />
  7. 7. THE MATTER OF THE UNIVERSE<br />MATERIALS:<br />Theobjects are manufacturedwithmultiplematerials. Each material isselectedcarefullyforthefunction of itspropierties.<br />Thegrowingindustrializationdemandsthatwe look for new materialsto manufacture novel objectsortoimproveoldmaterials.<br />Ourscientificknowledgealsoallowsusto manufacture substancesthathaveneverexisted.<br />Forexample, recentlytheyhaveinvented : medications, insecticides, plastics, varnishes, paintings, fibers etc.<br />

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