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Hot Air Balloon Quiz

Hot Air Balloon Quiz. 1. Helium is________________ than air. a. lighter b. heavier c. m ore dense. 2 . The kinetic theory of matter states all particles in matter are. constantly in motion. constantly not in motion or standing still. only in motion when heated.

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Hot Air Balloon Quiz

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  1. Hot Air Balloon Quiz

  2. 1. Helium is________________than air. a. lighter b. heavier c. more dense

  3. 2. The kinetic theory of matter states all particles in matter are • constantly in motion. • constantly not in motion or standing still. • only in motion when heated.

  4. 4. What determines the direction of flight for a hot air balloon? a. steering wheel b. wind c. rudders

  5. 5. How does a balloonist choose the direction of flight for a balloon? • Balloonist can’t change directions. • Direction only happens by chance. • By changing the altitude of the balloon.

  6. 6. What gas do balloons burn to make hot air for balloons? a. propane b. helium c. hydrogen

  7. 7. Why does a balloon collapse at night? • The air temperature drops and the air molecules cool, contract and collapse the balloon. • Nothing, the balloon still stays inflated. • The air temperature drops and the air molecules cool, expand and contract the balloon.

  8. 8. What happens to air molecules when they are heated? • Nothing changes with the air molecules. • The air molecules expand and move farther away from each other. • The air molecules get heated and move closer to each other.

  9. 9. Why did the red dye particles in the heated water spread out rapidly? • The dye particles were heated and contracted. • The dye particles were heated and expanded. • The dye particles were not effected by the heat.

  10. 10. Which of the following gases is the least dense? a. helium b. air

  11. 11. Which of the following types of air is moredense? a. cold air b. warm air

  12. 12. When air molecules are heated, • their movement slows down. • their movement speeds up faster. • their movement is not affected.

  13. 13. What happened to the helium balloon when it was heated over the hot plate? • The balloon deflated. • The balloon inflated more. • Nothing happened.

  14. 14. After heating the metal ball, it ______________. • did go through the ring. • did not go through the ring. • went half way through the ring.

  15. 15. What is the reason for your answer from question #14? • As the matter was heated, the particles in the metal contracted and allowed the ball from going through the ring. • As the matter was heated, the particles in the metal expanded and prevented the ball from going through the ring. • As the matter was heated unevenly, it only allowed half the ball to go through the ring.

  16. 16. Write your answer to this question on the back of your scantron. Explain why hot air balloons fly. Be sure to include kinetic theory of matter, the role of density, thermal expansion as well as the relationship between the air temperature inside the balloon as compared to the surrounding air. Be aware of the No Excuse FCA’s.

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