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|FISIO VR 1^ ANNO - 1^ SEMESTRE|
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The Course is designed to provide to the student the basic knowledge of physics, with specific focus in those principles and laws that will allow to understand biomedical topics.
Physical quantities, Base physical quantities and derived physical quantities. Standards of length, mass and time. MKS and cgs systems of units. Cartesian frame of reference. Vector and scalar quantities. Components and magnitude of a vector. Addition and subtraction of vectors. Unit vectors. The scalar and vector products of vectors.
Displacement, Velocity, Acceleration. Average and instantaneous velocity. Particle under constant velocity. Average and instantaneous acceleration. Particle under constant acceleration. Forces . The principles of dynamics . Law of universal gravity. Weight. Friction force. Circular uniform motion. Rigid body, body center of mass and center of gravity. Moment of force. Equilibrium of a rigid boby. Definition of Work and Energy. Kinetic energy. Work-kinetic energy theorem. Conservative forces. Potential energy. Law of conservation of mechanical energy. Power.
Definition of Fluid. Density. Pressure. Archimede’s principle. Variation of pressure with depth (Stevin’s Law). Pascal’s Law. Measurement of atmospheric pressure or Torricelli’s experiment. Pressure Units: atm, mmHg, Pa. Pressure measurements. Archimede’s principle. Fluid dynamics. Bernoulli’s equationU-tube manometers. Flow. Measurement of arterial blood pressure. Perfect fluid. Continuity equation for flow and its application to blood circulation. Bernoulli’s theorem and its application to stenosis and aneurysm. Real fluid and viscosity. Blood viscosity. Poiseuille’s Law. Physiological effects of hydrostatic pressure.
Thermal phenomena and gases
Temperatue, heat. Thermal expansion. Mercury thermometer. Celsius, Kelvin anf Farheneit Scale. Thermal capacity, specific heat. Mechanical equivalent of heat. Gas laws: First and second Gay-Lussac laws. The absolute temperature (Kelvin Scale). Boyle’s law. Avogadro’s law. Ideal gas law. Thermodynamic systems and process. First and second law of thermodynamics. Heat transport by conduction, convection and radiation.
Electric charge. Coloumb’s law. Electic field, potential energy and electric potential. Electric current. Ohm’s law. Resistance and resistivity. Conductors and insulators. The electronvolt. Electromagnetism (hints).
Mechanical and electromagnetic waves; transverse and longitudinal waves. Period, frequency, wavelength and propagation speed. Amplitude, energy, intensity of wave, Mechanical waves: the sound. Electromagnetic waves, the speed of light, spectrum of electromagnetic waves; the photon energy.
1) The test can be prepared using a physics textbook for high schools
2) Borsa F., Introzzi G.L. Scannicchio D., Elementi di Fisica per Diplomi di indirizzo medico biologico, Edizioni Unicopli, 2003.
3) Monaco V., Sacchi R., Solano A., Elementi di Fisica, McGrawHill
Written test (multiple choice test) followed by an optional oral test.