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- 1. Multiple Choice___________is the result of the weight of a column of air pushing on an area.air pressuredensityvolumenone of the above
- 2. Multiple ChoiceWhat does the air consist of?moleculesheliumdensityweather
- 3. Multiple ChoiceIn what direction(s) does air exert pressure?everywhereno wherethere is no pressuredownward
- 4. Multiple ChoiceA _____________ is the scientific instrument used to measure air pressure.barometerthermometermercurywatch
- 5. Multiple ChoiceWhat is altitude?how much something weighsthe distance above sea levelhow big something ishow far away something is
- 6. Multiple ChoiceAs you climb up a mountain what happens to the air pressure?decreasesincreasesstays the same
- 7. Multiple ChoiceWhat happens to the amount of oxygen molecules as altitude increases?fewer moleculesmore moleculessame amount of moleculesnothing happens to the molecules
- 8. Multiple ChoiceAir pressure is greatest when near Earth's surface because?The air molecules are farther apart.The air molecules are closer together.Air molecules collide.Air molecules are tightly packed.
- 9. Multiple ChoiceCold air exerts _____________ pressure than warm air.the samemoreless
- 10. Multiple ChoiceDensity of air is greater at high altitudes.truefalse
- 11. Multiple Choice
Altitude is greater __________.at the bottom of the mountainat the top of the mountainat the center of the mountain - 12. Multiple ChoiceAir pressure is greater _______.at the top of the mountainat the bottom of the mountainat the center of the mountain
- 13. Multiple ChoiceDensity of air is greater ________.at the top of the mountainat the bottom of the mountainat the center of the mountain
- 14. Multiple ChoiceAir pressure does not crush objects on earthbecause more air pushes down than upbecause gravity keeps air pressure awaybecause air pressure pushes in all directionsbecause the Earth has an opposing force of gravity
- 15. Multiple ChoiceThe amount of mass in a unit volume of a substancemasspressurevolumedensity
- 16. Multiple ChoiceWhy is it hard to breath at high altitudes?There is too much oxygen in this location.There is a higher density of air molecules.There is a low density of air molecules.The air pressure is greater than at low altitudes.
- 17. Multiple ChoiceIf density of air is high, pressure is:highlow
- 18. Multiple ChoiceIf density of air is low, pressure is:highlow
- 19. Multiple ChoiceMore molecules close together, means density is:highlow
- 20. Multiple ChoiceFewer molecules further apart, means density is:highlow
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