1. The SI unit of pressure is   Watt   Pascal   Newton   Joule   Hint Half-n-half Clue   2. Barometers modified to measure the height above sea level are called   altimeters   manometers   hydrometers   sphygmomanometers   Half-n-half Clue   3. Air is trapped in the space (labeled A) above the mercury level in the tube of a barometer, which measures 745 mm Hg. If the atmospheric pressure is 760 mm Hg, then the pressure of the trapped air is   760 mm Hg   15 mm Hg   745 mm Hg   between 745 and 760 mm Hg   Half-n-half Clue   4. _______ is a type of barometer that consists essentially of a thin metal box exhausted of air.   Manometer   Anemometer   Aneroid   Hydrometer   Half-n-half Clue   5. 3 Pa = _______ dynes cm-2   3e-05   30   300000   0.3   Half-n-half Clue   6. The average atmospheric pressure at sea level is 760 mm Hg. If the relative density of mercury is 13.6, then the air pressure can support _______ m of vertical length of a water column at sea level.   0.76   10.336   101396   10336   Half-n-half Clue   7. To measure the atmospheric pressure, the space (labeled A) above the mercury level in a barometer tube is   filled with water   filled with nitrogen   essentially vacuum   filled with air   Half-n-half Clue