Density and Air Pressure
2 years ago
sheila cole
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20 QuestionsShow answers
  • Question 1
    120 seconds
    Q. ___________is the result of the weight of a column of air pushing on an area.
    answer choices
    air pressure
    density
    volume
    none of the above
  • Question 2
    120 seconds
    Q. What does the air consist of?
    answer choices
    molecules
    helium
    density
    weather
  • Question 3
    120 seconds
    Q. In what direction(s) does air exert pressure?
    answer choices
    everywhere
    no where
    there is no pressure
    downward
  • Question 4
    120 seconds
    Q. A _____________ is the scientific  instrument used to measure air pressure.
    answer choices
    barometer
    thermometer
    mercury
    watch
  • Question 5
    120 seconds
    Q. What is altitude?
    answer choices
    how much something weighs
    the distance above sea level
    how big something is
    how far away something is
  • Question 6
    120 seconds
    Q. As you climb up a mountain what happens to the air pressure?
    answer choices
    decreases
    increases
    stays the same
  • Question 7
    120 seconds
    Q. What happens to the amount of oxygen molecules as altitude increases?
    answer choices
    fewer molecules
    more molecules
    same amount of molecules
    nothing happens to the molecules
  • Question 8
    30 seconds
    Q. Air pressure is greatest when near Earth's surface because?
    answer choices
    The air molecules are farther apart.
    The air molecules are closer together.
    Air molecules collide.
    Air molecules are tightly packed.
  • Question 9
    30 seconds
    Q. Cold air exerts _____________ pressure than warm air.
    answer choices
    the same
    more
    less
  • Question 10
    30 seconds
    Q. Density of air is greater at high altitudes.
    answer choices
    true
    false
  • Question 11
    30 seconds
    Q. Altitude is greater __________.
    answer choices
    at the bottom of the mountain
    at the top of the mountain
    at the center of the mountain
  • Question 12
    30 seconds
    Q. Air pressure is greater _______.
    answer choices
    at the top of the mountain
    at the bottom of the mountain
    at the center of the mountain
  • Question 13
    30 seconds
    Q. Density of air is greater ________.
    answer choices
    at the top of the mountain
    at the bottom of the mountain
    at the center of the mountain
  • Question 14
    30 seconds
    Q. Air pressure does not crush objects on earth
    answer choices
    because more air pushes down than up
    because gravity keeps air pressure away
    because air pressure pushes in all directions
    because the Earth has an opposing force of gravity
  • Question 15
    30 seconds
    Q. The amount of mass in a unit volume of a substance
    answer choices
    mass
    pressure
    volume
    density
  • Question 16
    30 seconds
    Q. Why is it hard to breath at high altitudes?
    answer choices
    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.
  • Question 17
    30 seconds
    Q. If density of air is high, pressure is:
    answer choices
    high
    low
  • Question 18
    30 seconds
    Q. If density of air is low, pressure is:
    answer choices
    high
    low
  • Question 19
    30 seconds
    Q. More molecules close together, means density is:
    answer choices
    high
    low
  • Question 20
    30 seconds
    Q. Fewer molecules further apart, means density is:
    answer choices
    high
    low
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