2013 chapter 4 section 2 birds

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Author:
Gogoflash
ID:
203681
Filename:
2013 chapter 4 section 2 birds
Updated:
2013-02-26 21:57:19
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2013 chapter section birds
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  1. what r the 2 ways thet birds stay in the air
    Movement

    air prusure
  2. Air is a mixture of what
    Gas molecules
  3. What do the gas molecule ps do
    Exert pressure on the object they surround
  4. can u c air pressure?? What do u c
    No u c the Results of air pressure
  5. The faster Air Moves
    The less pressure it exerts
  6. Faster moving air above the wing exerts greater or less pressure
    Less
  7. Slower moving air below wing exerts more or less pressure
    More
  8. Define lift
    An upward force that causes the bird to rise.
  9. Name three types of bird flight
    • 1. Flapping
    • 2. Soaring and gliding
    • 3.  Diving
  10. Which uses the most energy soaring and gliding or flapping
    Flapping
  11. What type of flight doesn't use a lift
    Diving
  12. Soaring  and gliding involve blank wing movement
    Little
  13. When soaring, birds use blank currents of air to move upward?
    Rising
  14. When gliding birds use blank currents of cool air to move downward.
    Falling
  15. Why does soaring & gliding use less energy than flapping
    Because to flap a Bird Must sharply pull down it's wings as it did when it  pushed off the ground
  16. Soaring & gliding use less energy than flapping __________________
    Because they require Less wing Movement
  17. What type of flight do birds use when hunting their prey
    Diving
  18. When a bird dives do they pull or extend their wings
    Pull
  19. Pulling in the wings Changes the birds body __________________
    Shape

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