Pressure Flashcards
1
Q
Pressure is measured in
A
newtons per square metre (n/m2), or pascals (Pa). 1 n/m2 = 1 Pa
2
Q
Pressure in a liquid
A
increases with depth
3
Q
Atmospheric pressure
A
is caused by the weight of the atmosphere
4
Q
A barometre
A
is used to measure atmospheric pressure
5
Q
Normal atmospheric pressure
A
can hold up to 76cm of mercury in a mercury barometre
6
Q
Altimeter
A
is a barometer used to measure height
7
Q
High atmospheric pressure
A
gives good, settled weather (clear sky, calm weather)
8
Q
Low atmospheric pressure
A
gives bad, unsettled weather (cloud, rain, storm, cyclone, high wind)
9
Q
Pressure
A
Is the force per unit area
