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Apperception <ul><li>Why does the balloon blow up when it is heated? </li></ul><ul><li>Why can the zeppelin  balloon go up...
EXPANSION GASES
Objective <ul><li>Design simple experiment to investigate the expansion of gases </li></ul><ul><li>Explain the principles ...
Activity <ul><li>Using your Student Worksheet 11.7 </li></ul><ul><li>(page 129)   </li></ul><ul><li>Do the experiment in y...
 
 
Water Surface
 
 
Resume <ul><li>The volume of gas will increase if it is heated and decrease if it is cooled. </li></ul><ul><li>Gases do no...
Application <ul><li>Hot air balloon </li></ul>
<ul><li>When the air inside a balloon is heated, its density becomes smaller than the air of the surrounding. </li></ul><u...
Application
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Gas expansion

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Gas expansion

  1. 1. Apperception <ul><li>Why does the balloon blow up when it is heated? </li></ul><ul><li>Why can the zeppelin balloon go up ? </li></ul>
  2. 2. EXPANSION GASES
  3. 3. Objective <ul><li>Design simple experiment to investigate the expansion of gases </li></ul><ul><li>Explain the principles of thermal expansion of gases </li></ul>
  4. 4. Activity <ul><li>Using your Student Worksheet 11.7 </li></ul><ul><li>(page 129) </li></ul><ul><li>Do the experiment in your group </li></ul>
  5. 7. Water Surface
  6. 10. Resume <ul><li>The volume of gas will increase if it is heated and decrease if it is cooled. </li></ul><ul><li>Gases do not have linear and area expansion. </li></ul><ul><li>Volume expansion coefficient of all gas is 1/273 / o C or 0.00367/ o C </li></ul>
  7. 11. Application <ul><li>Hot air balloon </li></ul>
  8. 12. <ul><li>When the air inside a balloon is heated, its density becomes smaller than the air of the surrounding. </li></ul><ul><li>The uplift from the surrounding air causes the balloon flies. </li></ul>
  9. 13. Application

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