Quizlet MPCS6thScienceCh4

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  1. Explain vaporization during boiling.: vaporization that occurs below the liquid's surface at the boiling point
  2. Explain vaporization during evaporization.: vaporization that occurs at the surface of the liquid - the molecule are at or near the surface and at the right speed to evaporate
  3. How do the particles in a gas move?: at high speeds and in all directions
  4. How do the particles in a solid move?: mostly by vibrating
  5. How does an object gain thermal energy?: by heating it - the hotter an object, the more thermal energy it has
  6. How does density affect whether or not an object floats?: if the object is the same density or less dense, it will float
  7. How does temperature relate to the movement of particles?: the higher the temperature, the faster they move and the lower the temperature, the slower they move
  8. What are 2 types of vaporization?: boiling and evaporation
  9. What are some ways pressure can be increased?: increase the force or decrease the area
  10. What are some ways to increase pressure of a confined gas?: increase temperature or decrease volume
  11. What are the particles in a gas like?: they move at high speeds and in all directions
  12. What are the particles in a liquid like?: they flow freely from one place to another
  13. What are the particles in a solid like?: they are packed tightly together
  14. What determines the state of matter?: the arrangement and movement of the particles in matter (atoms and molecules_
  15. What does A represent or stand for?: random
  16. What does Archimedes' Principle state?: the buoyant force on an object is equal to the weigth of the fluid displaced by the object
  17. What does C represent or stand for?: repeating
  18. What does Pascal's Principle state?: when a force is applied to a confined fluid, an increase in pressure is transmitted equally to all parts of the fluid
  19. What happens when matter changes its state?: the arrangement and movement of the particles changes
  20. What is a gas?: matter that does not have a definite shape or volume; it has particles that move at high speeds in all directions
  21. What is a liquid?: matter with a definite volume but no definite shape that can flow from one place to another
  22. What is a solid?: matter with a definite shape and volume; it has tightly packed particles that move mainly by vibrating
  23. What is a state of matter?: a physical property that describes a substance as a solid, a liquid, or a gas (solid, liquid, gas)
  24. What is an amorphous solid?: they have a random arrangement of particles
  25. What is an example of a low specific heat?: sand
  26. What is an example of high specific heat?: heating up water slowly
  27. What is buoyant force?: the upward force exerted on an object immersed in a fluid
  28. What is condensation?: the change of matter from a gas to a liquid state
  29. What is density?: a physical property of matter that can be found by dividing the matter's mass by its volume (mass/volume)
  30. What is energy?: the ability to cause change
  31. What is evaporation?: it is the vaporization that occurs at the surface of a liquid; molecules must be at or near the surface and at the right speed
  32. What is heat?: the movement of thermal energy from a substance at a higher temperature to a substance at a lower temperature
  33. What is kinetic energy?: energy that an object has due to its motion
  34. What is matter?: anything that takes up space and has mass
  35. What is pressure?: the amount of force applied per unit area on an object's surface (SI unit is a Pascal)
  36. What is specific heat?: the amount of temperature needed to raise the temperature of 1 kilogram of a substance to 10 degrees celcius
  37. What is the boiling point?: the vaporization that occurs below the liquid's surface
  38. What is the formula for density?: D = M/V
  39. What is the formula for pressure?: P = F/A (measured in Pascals) (it equals the force exerted on a surface divided by the total area over which the force is exerted)
  40. What is the freezing point?: the change of matter from a liquid state to a solid state
  41. What is the melting point?: the change of matter from a solid state to a liquid state
  42. What is the relationship between density and whether or not an object sinks?: if the object is more dense, it will sink
  43. What is thermal energy?: the sum of the kinetic and potential energy of the particles in a material
  44. What is vaporization?: the change of matter from a liquid state to a gas
  45. What occurs when you breathe in?: energy is absorbed
  46. What occurs when you breathe out?: energy is released
  47. Why does matter have either a high specific heat or a low specific heat?: it either releases or absorbs energy