atmospheric pressure Flashcards
1
Q
pressure of earth’s atmosphere
A
100kPa at sea level.
2
Q
force on each sqaure metre of surface at sea level
A
100 000N
3
Q
what is atmospheric pressure due to
A
air molecules colliding with surfaces
4
Q
what happens to the atmospheric pressure as the altitude increases?
A
it decreases as there is less air
5
Q
what happens to the atmospheric density as the altitude increases?
A
it decreases
6
Q
pressure at sea level equation
A
p = h x ρ x g
