Chemistry and Physics Test Questions
About this set
Created by:
markeemc23 on October 27, 2011
Subjects:
Description:
Test 1
Log in to favorite or report as inappropriate.
Order by
25 terms
Terms | Definitions |
|---|---|
 ABL Equation | [(Beginning - Final) / Final] x EBV |
| Fick's Equation | (Uptake) / (Venous - Arterial) = CO |
| How many zeros on Mega? | 6 |
| How many meters in a mile | 1609 |
| In a venturi tube the area A1 = 100cm^2, Velocity V1 = 10cm/sec. What is the velocity V2 at point 2 if the area A2 = 10cm^2? What is the flow in cc/sec? | 100cm/sec, 1000cc/sec A1 x V1 = A2 x V2 100 x 10 = 10 x X, solve for X X = 100cm/sec Flow = A1 x V1 100 x 10 = 1000cc/sec |
| What are the SI units of Pressure? | Kg / (m sec^2) |
| What are the SI units of Tension? Remember T=PR/2. Where T = Tension, P = Pressure, R= Radius | Kg / (sec^2) |
| What is true about Reynolds (Re) number? | Re is directly proportional to velocity. |
| Turbulent Flow starts at which Re? | Re > 2000 |
| Re is not dependent on which factor? | Viscosity |
| How do you calculate Re? | (VLP) / N V = Velocity L = Length P = Density N = Viscosity |
| What is the apparent weight of a sphere that is 10Kg in mass with a radius of 0.1 meters? Volume of a sphere is (4/3)pi*r^3. Spc gravity of water is 1gm/cm^3 or 1000Kg/m^3. | 57 Newtons 10Kg = 10,000gm and 102gm = 1 newton 10,000 / 102 = 98 newtons (4/3)pi10^3 = 4,188 4188 / 102gm = 41 newtons of water So, 98 - 41 = 57 newtons to weight |
| Cyclopropane has a velocity of 1.0m/sec through a tube diameter of 1.0cm into a diameter of 0.01cm. What is the Velocity change? What is the Pressure drop? Cyclopropane density is 1.8kg/m^3. | 1x10^4 m/sec, -9x10^7 pascals As Velocity increases Pressure will Drop. |
| Bernoulli's Principle | In fluids, when speed increases, the pressure decreases |
| Force Equation (phAg) | pvg = pressure or phAg p = Density v = Volume (Ah or Area x Height) g = Gravity |
| Flow Equations. 3 of them | V1 x A1 = Flow Velocity x Area = Flow or (Mass or Volume) / Time or Pressure / Resistance = Flow |
| Pressure Equation. Given p, h, g | phg = Pressure p = Density h = Height g = gravity |
| Force of Gravity = | 9.81 |
| You are handed 5cc of 40mg/cc dopamine to mix in 245cc of NS. What is the final concentration in mcg/cc? | 1. 40mg x 5cc = 200mg/cc 2. Convert to mcg 200mg x 1000mcg = 200,000mcg 3. 200,000mcg / 245cc NS = 816.32mcg/cc |
| You are ventilating a patient and you analog pressure gauge reads 20cm H2O. What is the pressure in pascals? | 1. There are 1.36mmHg in 1mm H2O 2. 20cmH2O / 1.36mmHg = 14.7mmHg 3. There are 760mmHg in 1 atmosphere 4. 14.7mmHg / 760mmHg = 0.01934mmHg 5. There are 100,000 pascals in 1 atms 6. 0.01934 x 100,000 = 1934 pascals |
| How many Ft in a mile? | 5,280 Ft |
| How many cm in 1 inch? | 2.54cm |
| Given Poiseuille's law: Q = [(pir^4Delta P) / (8nl)] What statement is true? | Flow is directly proportional to the 4th power of the radius. |
| What is Poiseuille's equation? | Q = [(pir^4Delta P) / (8nl)] |
| Given: Q = [(pir^4Delta P) / (8nl)] and P = Q*R, Solve for R | a) 8nl/pi r^2 b) pi r^4/8nl c) pi r^2/8nl d) None of these choices d is the correct answer. |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.