Chapter 6 Pressure Flashcards
1
Q
What is pressure
A
Pressure is the force acting per unit area
2
Q
What is the formula for pressure
A
P= F/A
3
Q
What is SI unit of pressure
A
Pa, N/m2
4
Q
What is standard conversion
A
1 x 10^5 Pa = 0.1 MPa = 100 kPa
5
Q
What is standard atmospheric pressure
A
1 atm= 101 325 Pa = 101.325 kPa
6
Q
What is Pascal’s law/principle
A
If a pressure is applied to an enclosed liquid, the pressure is transmitted to all other parts of the liquid undiminished.
7
Q
What is density
A
Density is defined as the mass per unit volume.
8
Q
What is the formula of density
A
Density= m/v
9
Q
What is SI unit of density
A
kg/m^3
10
Q
Pressure in liquid formula
A
Pressure= h x density x g
11
Q
Golden rules of pressure in liquid
A
- Same fluid, same level, same pressure
- Always look up from point of interest to calculate liquid pressure
