Air Pressure Quiz

1. At sea level, air pushes with a force of how many pounds per square inch?

• 14.7
• 29.92
• 34

2. Arrow B represents:

• air pressure
• the weight of water
• the weight of the card

3. By looking at the relative lengths of the arrows you can determine that the glass has:

• water in it and the card will stay on
• water in it but the card will fall off
• air in it and the card will stay on

4. Mercury (Hg) is about 14 times denser than water. Air pressure will support a column of mercury to:

• a height that is about 14 times taller than water
• a height that is about 14 times shorter than water
• a height that is equal to the height water can be supported

5. Going up higher and higher in elevation (altitude) means:

• a drop in air pressure
• an increase in air pressure
• no change in air pressure

6. Air pressure:

• just pushes downward
• pushes up, down, and sideways (all directions) with equal force

7. The reason a feather falls slower than a stone, here on Earth, is because:

• the feather is lighter than the stone
• there is more air resistance for the feather

8. Air will move

• from areas of lower pressure to higher pressure
• from areas of higher pressure to lower pressure
• only when air is hot

9. When air is heated its pressure will:

• increase
• decrease
• not change

10. Water will boil:

• only when its vapor pressure is greater than the air pressure
• only when air pressure is greater that the water's vapor pressure
• when air pressure and the water's vapor pressure are equal