The Atmosphere Flashcards
whats isa density amsl?
1225g/m^2
what is density?
the amount of particles in a given space
what is the most important determinant of an aircraft’s running?
density of the surrounding air
whats isa pressure amsl?
1013.25hPa
what is pressure?
force generated by the motion and collision of particles
pressure depends on ___ first, then ___
density, temperature
what does a higher density mean in terms of pressure?
a higher pressure
whats isa temperature amsl?
15 degrees C
whats the isa temperature lapse rate
1.98 degrees C / 1000ft
in a closed container, what happens to pressure and density when temperature increases?
pressure rises, density remains the same
what happens to pressure and density if the air can expand when temperature rises?
pressure and density lower as the particles spread out
in different masses of air with the same pressure, the air with the lowest temperature will have the ___ density
highest
in different masses of air with the same pressure, the air with the lowest temperature will have the ___ density
highest
density and pressure lapse rates are ___ at low levels and ___ with altitude
high, decrease
what is bernoullis theorem?
in the streamline flow of an ideal fluid, the sum of all energies remains the same
