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18 Cards in this Set
- Front
- Back
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The Rate at which energy is transferred?
1. Power 2. Energy 3. velocity 4. pressure |
1. Power
(watts= Joules/sec) |
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The amount of energy transferred:
1. energy 2. resistance 3. viscosity 4. Work |
4. Work
(work = average power x total time) |
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Energy is:
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Energy is never lost, only converted to another form.
(has many units depending on the type of energy.) |
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Potential Energy is
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energy that is stored which can be converted to other forms of energy.
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Kinetic Energy is:
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energy related to movement and is proportional to the velocity squared of the movement.
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Pressure is:
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a measure of force per unit area.
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Static pressure is
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associated with potenial energy
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Dynamic pressure is
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related to kinetic energy.
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Volumetric Flow is
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the volume of fluid per time which moves past a point.
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Resistance is
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the ratio of the pressure drop across a vessel per volumetric flow.
or a measure of the impediment that must be overcome for flow to occur. |
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Capacitance is a
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a measure of the ability to hold a change in volume per change in time.
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Compliance is
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the ratio of the change in volume to a change in pressure.
dV/dP |
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Velocity is
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the speed with which a fluid moves in a specific direction
(units of m/sec) |
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Viscosity (fluid) is
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The ratio of the shear stress to the shear rate of a fluid or
a measure of the resistance of a fluid to flow due to the attraction of the molecules. |
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True or false?
Potential and kinetic energy are inversely related |
True
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True or False?
Within Hemodynamics, the driving force to propel blood is a change in energy? |
True
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True or False
Flow can only occur from a higher to lower energy level? |
True
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Conservation Energy theorum is
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you cannot destroy energy, only change its form.
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