Italian (English, French or Spanish languages can be used for discussions with the teacher and for exams)
Course Content
Introduction to the scientific method. Point kinematics. Dynamics of the material point. Dynamics of systems. Dynamics of the rigid body. Fluid mechanics. Oscillations. Thermodynamics.
P. Mazzoldi, M. Nigro, C. Voci
Elementi di Fisica - Meccanica e Termodinamica
Edises, Napoli ISBN: 8879592084
Bruzzi Cataliotti Fanelli - Elementi di Meccanica e Termodinamica
I Ed. 2013 Vol. form.to 17x24 in brossura Pag. 208 ISBN: 9788874885831
Mara Bruzzi, Esercizi svolti di fisica generale
Editrice Esculapio - Progetto Leonardo - Bologna
ISBN: 978-88-7488-247-2
Any university textbook including the topics of the course is acceptable
Learning Objectives
The course aims to provide students with a scientific method for the study and schematization of physical systems and phenomena. Basic physics concepts concerning mechanics, thermodynamics, electromagnetism and some fundamental aspects of modern physics are presented and discussed.
Capabilities acquired:
1) Knowledge of High School Maths concepts,
2) ability to correctly use such concepts in calculus.
Prerequisites
1) Nozioni di matematica secondo quanto previsto dai programmi ministeriali della scuola secondaria superiore.
2) Capacità di utilizzare correttamente tali nozioni e di eseguire le operazioni ed i calcoli relativi. 1) Knowledge of High School Maths concepts,
2) ability to correctly use such concepts in calculus.
Teaching Methods
Lessons and assignments with solutions.
The course is complemented by video elements, quizzes and multimedia material that will be provided through the university e-learning platform
Further information
See the university e-learning platform
Type of Assessment
Written and oral exams for both Physics I: mechanics and thermodynamics and Physics II: electromagnetism and introduction to modern physics. Oral exam is not compulsory if the score of the relative written exam is equal or higher than 21/30.
Course program
Introduction
The scientific method. Units. Dimensional Calculus. Scalar and vector physical quantities.
Operations with vectors: Sum, Difference, Scalar Product, Vector Product. Versors.
Cartesian reference frames and orthogonal axes.
Kinematics
Reference Systems. trajectory. The position vector. Displacement vector.
Average and istantaneous velocity vector. Acceleration vector.
From acceleration to the equation of motion: the integration process.
Curvilinear trajectories. Intrinsic coordinates of the trajectory.
Circular Motion; angular velocity vector.
Tangential and centripetal acceleration in curvilinear motion.
Harmonic motion.
Dynamics of a point mass
Principle of inertia. Inertial reference systems. Newton's Law. Inertial mass.
Third Principle of Dynamics.
Gravity Force. Gravity acceleration. Motion near the Earth's surface.
Reactions.Static and dynamic friction forces. Elastic forces.
The fundamental problem of dynamics: from forces to motion.
Pendulum. Relative motion reference systems: relationship between speed and acceleration
measured in two reference systems.
Impulse and momentum. Impulse theorem. Work of a force: definition and unit of measure.
kinetic energy. Theorem of the kinetic energy. Potential energy.
Conservation of mechanical energy. Conservative and non-conservative forces. Power.
Harmonic oscillator.
Dynamics of systems of points and of rigid bodies
Internal and external forces. center of mass.
The first cardinal equation of dynamic systemss. Mass center motion theorem.
Conservation of the linear momentum. Angular momentum. Torque. Center of gravity. Second cardinal equation of dynamic systems.
Conservation of the angular momentum. Kinetic and potential energy. Mass center reference system.
Kinetic energy theorem for a system of material points. Energy Conservation for Material Point Systems.
Elastic and anelastic deformation. Extended body. Inertial momentum. Motion of a rigid body.
Huygens-Steiner Theorem. Kinetic energy of a rigid body rotating around a fixed axis.
Physical Pendulum.
Fluid mechanics
Ideal and real fluids. Density. Volume and surface forces. Pressure: definition and unit of measurement. Fluids in balance. Stevino's law. Mercury barometer and atmospheric pressure. Pascal's law. Law of Archimedes. Dynamics of an ideal fluid. Stationary motions. Current lines and flow lines. Capacity. Law of constancy of the scope. Bernoulli's theorem and its applications. Viscosity and Poiseuille's law.
Thermodynamics
Thermodynamic systems, environment, universe. Intensive and extensive state variables. Thermodynamic equilibrium. Zero principle of thermodynamics. Definition of temperature, thermometers. Temperature scales. Adiabatic systems. Joule's experiences: work, heat, internal energy: first principle of thermodynamics. Thermal capacity and specific heat. Latent heat. Heat transmission. Reversible and irreversible thermodynamic transformations. Equation of state of ideal gases. Internal energy of a perfect gas. Mayer's relationship between specific heat at constant volume and pressure of a perfect gas. Isobaric, isochoric, isothermal, adiabatic transformations of the ideal gas. Cyclic transformations. Carnot cycle. Refrigeration cycles. Real gas: Van der Waals state equation, pV and pT diagrams. Kinetic theory of gases. Energy provision. Second law of thermodynamics: Clausius and Kelvin-Planck statements and their equivalence. Carnot's theorem. Clausius theorem. Entropy. The principle of increasing entropy. Entropy of the ideal gas. Calculations of entropy variations.