Fluids and solids

Question 1

Hydrostatic pressure

Answer 1

Ph = densityliquid * g * z
g=10 m/s^2
z = depth submerge

Question 2

continuity equation

Answer 2

describes relation ship between cross sectional area and velocity

A1V1 = A2V2

Question 3

buoyancy force

Answer 3

Fb = density liquid * volume of object submerged * g

Question 4

Pressure of liquids

Answer 4

Pressure = Force/Area

pascals law = F1/A1 = F2/A2

Question 5

Effective weight of an object

Answer 5

Effweight = weight - buoyancy force

Question 6

Bernoullis equation

Answer 6

P1 + (0.5)(density1)(V1^2) + (density1)(gh1) =P2 + (0.5)(density2)(V2^2) + (density2)(gh2)

Question 7

Density

Answer 7

g/ml

mass/volume

Question 8

Volume

Answer 8

V = Area * distance

Question 9

Thermal expansion

Answer 9

delta L /L = thermal coeffecient * delta T

Question 10

Stress

Answer 10

Force / area

Question 11

Strain

Answer 11

delta L/L

Question 12

Youngs modulus

Answer 12

Y = stress/strain = (F/A)/(deltaL/L)

measures response to compressive forces

Question 13

Shortcut to effective weight

Answer 13

The proportion of objects weight that is cancelled due to buoyancy equal to the ratio of the liquids density to object density

Question 14

Shear modulus

Answer 14

Shear = stress/strain = (F/A)/(delta X/h)