chapter 4 and 12 vocab science

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soccer5
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140356
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chapter 4 and 12 vocab science
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2012-03-07 17:52:58
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science vocabulary
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  1. fluid
    a substance that has no definate shape and can flow.
  2. hydrolic system
    uses a fluid to increase an applied force
  3. bernoulli's principle
    states that when the speed of a fluid increases, the pressure exerted by the fluid decreases
  4. matter
    anything that takes up space and has mass
  5. solid
    matter with a definate shape and volume
  6. liquid
    matter that has a definate volume but no shape
  7. viscosity
    a liquids resistance to flow
  8. suface tension
    the uneven forces acting on the particles on the surface of a liquid
  9. gas
    matter that does not have a definate shape or volume
  10. thermal energy
    the total kinetic and potential energy of all the particles in a sample of matter
  11. temperature
    average kinetic energy of all the particles in a sample of matter
  12. heat
    • movement of thermal energy form a substance at a higher temperature to one at a lower temperature
  13. melting
    the change from the solid state to the liquid state
  14. freezing
    change form a liquid state to a solid state
  15. vaporization
    change form a liquid to a gas
  16. condensation
    particles move slowly enough for their attractions to bing them together
  17. pressure
    equal to the force exerted on a surface divided by the total area over which the force is exerted
  18. buoyant force
    difference in pressure results in an upward force on an object immersed in a fluid
  19. archimedes principle
    buoyant force on an objects is equal to the weight of the fluid displaced by the object
  20. pascals principle
    force is applied to a container where you squeeze or near the top of the container
  21. density
    a fluid or an object in the mass of the object divided by the volume it occupies
  22. hydraulic system
    a fluid to increase an input force

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