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Physical Properties Of Matter

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Physical Properties Of Matter

  1. 1. <ul><li>The Physical Properties of Matter </li></ul>
  2. 2. What is a physical property of matter? <ul><li>A property that can be observed or measured without changing the identity of that matter </li></ul><ul><li>Ex: Color, odor, shape, size, etc. </li></ul>
  3. 3. Thermal Conductivity <ul><li>Definition: </li></ul><ul><li>The ability to transfer thermal energy (heat) to something else </li></ul><ul><li>Example: </li></ul><ul><li>Coffee in a special cup to prevent heat transfer to our hands </li></ul>
  4. 4. State <ul><li>Definition: </li></ul><ul><li>The form in which matter exists: solid, liquid, gas, or plasma </li></ul><ul><li>Example: </li></ul><ul><li>Ice = Solid </li></ul><ul><li>Water = Liquid </li></ul><ul><li>Helium = Gas </li></ul><ul><li>Lightning = Plasma </li></ul>
  5. 5. Malleability <ul><li>Definition: </li></ul><ul><li>The ability to be pounded into thin sheets </li></ul><ul><li>Example: </li></ul><ul><li>Aluminum can be pounded flat to make aluminum foil </li></ul>
  6. 6. Ductility <ul><li>Definition: </li></ul><ul><li>The ability to be drawn into thin wires </li></ul><ul><li>Example: </li></ul><ul><li>Copper is used to make wires </li></ul>
  7. 7. <ul><li>Example: </li></ul><ul><li>Alka-seltzer dissolves in water or sugar dissolves in coffee </li></ul>Solubility <ul><li>Definition: </li></ul><ul><li>The ability for one substance to dissolve into another substance </li></ul>
  8. 8. Density <ul><li>Definition: </li></ul><ul><li>Mass per unit volume </li></ul><ul><li>Example: </li></ul><ul><li>Lead is used for fishing weights because it is more dense than water </li></ul>
  9. 9. More information about density... <ul><li>Density = The amount of matter in a given space or volume </li></ul><ul><li>Density = m Mass </li></ul><ul><li>v Volume </li></ul>
  10. 10. More information about density... <ul><li>Most substances have a unique density: </li></ul><ul><li>Water = 1.00 g/mL </li></ul><ul><li>Gold = 19.32 g/mL </li></ul><ul><li>(See page 13 in your book for a bigger list) </li></ul><ul><li>Density < 1 - The object will float in water </li></ul><ul><li>Density > 1 – The object will sink in water </li></ul>
  11. 11. The Magic Triangle <ul><li>Answers are expressed in g/cm 3 </li></ul><ul><li>or g/mL </li></ul>m D V

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