Physics Flashcards
1
Q
Pressure
A
pressure = force / area
2
Q
Absolute pressure
A
absolute pressure = gauge pressure + atmospheric pressure
3
Q
Hagen-Poiseuille
A
Q = πPr4 / 8nl
4
Q
Reynolds number
A
pvd / n (dvd= density/velocity/diameter divided by viscosity)
5
Q
turbulent flow
A
Q ∞ √P (pressure)
Q ∞ 1/ √l
Q ∞ 1/ √p (density)
6
Q
Bernoulli’s equation
A
1/2 pv2 + P = K
P=potential energy
7
Q
Gas laws
A
Boyles law: PV =K
Charles law V/T =K
3rd law P/T= K
PV = nRT
8
Q
Ohms law
A
V = IR
9
Q
Power (watts)
A
VI =I2 R
10
Q
Charge
A
measured in Coulombs
Q = A x s
11
Q
Capacitance
A
C = Q / V
measured in Farads
12
Q
Defibrilator
A
1/2 CV2
E=1/2 QV
13
Q
Parallel
A
1/Rt = 1/R1 + 1/R2
14
Q
Series
A
Rt = R1 + R2
15
Q
Wheatstone bridge
A
R1 / R2 = R3 / R4
