Biophysics topics 10-12

Thermodynamics

• Laws

• Thermal expansión

Multiple Choice

If two systems are in thermodynamic equilibrium with a third system

the two original systems are in thermal equilibrium with each other.

• 0th law

• 1st law

• 2nd law

• 3rd law

Multiple Choice

Energy can be converted from one form to another with the interaction of heat, work and internal energy, but it cannot be created nor destroyed, under any circumstances.

• 0th law

• 1st law

• 2nd law

• 3rd law

Multiple Choice

If two systems are in thermodynamic equilibrium with a third system

the two original systems are in thermal equilibrium with each other.

• 0th law

• 1st law

• 2nd law

• 3rd law

Multiple Choice

Disorder in the universe is always increasing

• 0th law

• 1st law

• 2nd law

• 3rd law

Multiple Choice

Assumes a closed system: energy doesn't creates or destroys

• 0th law

• 1st law

• 2nd law

• 3rd law

Multiple Choice

As the temperature approaches absolute zero in a system, the absolute entropy of the system approaches a constant value.

• 0th law

• 1st law

• 2nd law

• 3rd law

Multiple Choice

The state of entropy of the entire universe, as an isolated system, will always increase over time.

• 0th law

• 1st law

• 2nd law

• 3rd law

Multiple Choice

Unit of measurement: joules

• Heat

• Temperature

Multiple Choice

Is the amount of energy in a body

• Heat

• Temperature

Multiple Choice

Doesn't has working ability

• Heat

• Temperature

Multiple Choice

Has working ability

• Heat

• Temperature

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Is calculated using a respiratory equation

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Involves the measurement of oxygen consumption and CO2 production.

Multiple Choice

Unit of measurement: kelvin

• Heat

• Temperature

Multiple Choice

Device: calorimeter

• Heat

• Temperature

Multiple Choice

Device: thermometer

• Heat

• Temperature

Fill in the Blank

Is the measure of intensity of heat

Multiple Select

Absolute scales

• Rankine

• Kelvin

• Celsius

• Farenheit

Multiple Select

Relative scales

• Rankine

• Kelvin

• Celsius

• Farenheit

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Free, unusable energy

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The science of determining the change in energy of a system by measuring the heat exchange of the system with the surroundings.

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Hydrostatics

• Previous concepts

• Types of pressure measurement

• Principles and medical applications

Multiple Choice

Resistance of a fluid (liquid or gas) to a change in shape

or movement of neighboring portions relative to one another

• Fluid

• Density

• Pressure

• Viscosity

Multiple Choice

Mass per unit volume of a substance. Changes with temperature

• Fluid

• Density

• Pressure

• Viscosity

Multiple Choice

The force divided by the area perpendicular to the force.

• Fluid

• Density

• Pressure

• Viscosity

Multiple Choice

Substance that flows and is not solid.

Liquids, gases, and plasmas.

• Fluid

• Density

• Pressure

• Viscosity

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Pressure is determined by the weight of the overlying water column per unit area at a particular depth.

Fill in the Blank

A object under wáter feel a buoyant forcé upwards.

Multiple Choice

Measuring the difference between two pressure port readings

• Gauge

• Sealed

• Absolute

• Differential

Fill in the Blank

Multiple Choice

Reference to atmospheric pressure

• Gauge

• Sealed

• Absolute

• Differential

Multiple Choice

The reference is a vacuum (no pressure)

• Gauge

• Sealed

• Absolute

• Differential

Multiple Choice

Referenced to a sealed chamber closed with atmospheric pressure

• Gauge

• Sealed

• Absolute

• Differential

Multiple Choice

indicates how much pressure your blood is exerting against your artery walls when the heart beats.

• Systolic blood pressure

• Diastolic blood pressure

Multiple Choice

indicates how much pressure your blood is exerting against your artery walls while the heart is RESTING between beats

• Systolic blood pressure

• Diastolic blood pressure

Multiple Choice

The Heimlich maneuver is a medical application of the

• Hydrostatic pressure

• Archimedes principle

• Pascal's principle law

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Pressure is equally distributed throughout a fluid

Surface

• Surface tension

• Laws

• Biological applications

• Cohesion energy

phenomena

• Solid-liquid cohesive energy

• Contact angle and capillarity

• Jurin’s law

Multiple Choice

A chemical that lowers surface tension

• Cohesive energy

• Adhesion and capillary

• Surface tension

• Surfactant

Multiple Choice

The energy required to separate constituent atoms apart from each other and to bring them to an assembly of neutral free atoms.

• Cohesive energy

• Adhesion and capillary

• Surface tension

• Surfactant

Multiple Choice

Attraction of liquid molecules to one another at a gas liquid interface.

• Cohesive energy

• Adhesion and capillary

• Surface tension

• Surfactant

Multiple Choice

Resists any force that tends to increase the surface area of a liquid

• Cohesive energy

• Adhesion and capillary

• Surface tension

• Surfactant

Multiple Choice

Attraction between water molecules and other molecules.

• Cohesive energy

• Adhesion and capillary

• Surface tension

• Surfactant

Multiple Choice

Allows the development of surface tension

• Cohesive energy

• Adhesion and capillary

• Surface tension

• Surfactant

Multiple Choice

Exposure charged surfaces.

• Cohesive energy

• Adhesion and capillary

• Surface tension

• Surfactant

Multiple Choice

The mass of a drop formed at the tip of a capillary is directly proportional to the radius of the capillary tube.

• Jurin’s law

• Laplace’s Law

• Tate’s Law

Multiple Choice

The height of liquid in a capillary tube is inversely proportional to the diameter of the tube.

• Jurin’s law

• Laplace’s Law

• Tate’s Law

Multiple Choice

The pressure inside an inflated elastic container with a curved surface

• Jurin’s law

• Laplace’s Law

• Tate’s Law

Multiple Choice

The tension in the walls of a hollow sphere or cylinder is dependent on the pressure of its contents and its radius

• Jurin’s law

• Laplace’s Law

• Tate’s Law

Fill in the Blank

Biological application of surfactant