Unit PHYSICS
 Course
 Informatics
 Studyunit Code
 55043006
 Curriculum
 In all curricula
 Teacher
 Gino Tosti
 Teachers

 Gino Tosti
 Hours
 42 ore  Gino Tosti
 CFU
 6
 Course Regulation
 Coorte 2020
 Offered
 2021/22
 Learning activities
 Base
 Area
 Formazione matematicofisica
 Academic discipline
 FIS/01
 Type of studyunit
 Obbligatorio (Required)
 Type of learning activities
 Attività formativa monodisciplinare
 Language of instruction
 Italian
 Contents
 The program of the course is oriented to provide a basic understanding of physical phenomena through a variety of topics of classical physics, including mechanics of point particles, electrostatic, electric currents and circuits, magnetism and electromagnetism.
 Reference texts
 Halliday, Resnick, Walker, "Fondamenti di Fisica", Casa Editrice Ambrosiana
 Educational objectives
 At the end of the course students will have learned the basic knowledge of classical physics and electromagnetism and will be able to solve simple exercizes on the main topic discussed during the course.
 Prerequisites
 Basic knowledge of algebra, analytic geometry, plane trigonometry, differential and integral calculus.
 Teaching methods
 Lectures on all the arguments of the course.
 Other information
 No further information
 Learning verification modality
 The exam consists of a written and, eventually, an oral exam. The result of the written test is decisive for admission to the oral test. The oral is required only if you reach a minimum result. In the case of oral examination it is not carried out a strict arithmetic mean between the written test and oral exam. In the written test the student must demonstrate the ability to solve at least two of the three problems assigned. The time assigned to solve the problems is 23 hours.
 Extended program
 Introduction: Physical quantities, units of measurement, orders of magnitudeScalars and vectors: elements of vector algebra. Position and displacement, speed and acceleration; hourly law of motion and trajectory.Uniform and uniformly accelerated motion, free fall; Uniform circular motion.Concepts of force and mass. The three laws of Newton and their applications. The forces of friction (static and dynamic) and their laws.Work and energy. Kinetic energy and workenergy theorem, conservative and nonconservative forces, potential energy, energy conservation; power.Center of mass, momentum, conservation of momentum. Impulse of a force, impact in one dimension, elastic and inelastic shocks.Rotational variables for rotations of a rigid body around a fixed axis. Angular speed and acceleration. ExamplesRotation with constant angular acceleration. Relations between linear quantities and angular sizes. Kinetic energy of rotation: the moment of inertia.Dynamics of the rotary motion: moment of a force with respect to an axis, angular momentum, conservation of angular momentum.Electric charges. Insulators and conductors. Coulomb's law. Electric field and its operational definition. Calculation of the field generated by point charges and continuous charge distributions.Gauss's theorem. Consequences: distribution of charges in a conductor under static conditions, Coulomb's theorem, electric fields generated by distributions of flat, cylindrical and spherical symmetry.Electrostatic potential: operational definition. Calculation of potential for point and continuous charge distributions.Capacity: Capacitors. Capacitors in series and parallel. Energy stored in a charged capacitor. Energy and energy density of the electric field.Electric current. Density and intensity of electric current. Drift speed. Resistance and resistivity. Ohm's law (in macroscopic and microscopic form). Power in electric circuits and Joule's law. Generators: electromotive force and internal resistance.Magnetic induction field B. Lorentz force acting on a charged particle. Charge in circular motion. Lorentz force acting on a currentflowing wire. Mechanical moment acting on a loop covered by current. Magnetic dipole.Magnetic field generated by a current: the BiotSavart law. Use of the BiotSavart law for the calculation of B in some simple systems.Circulation theorem (of Ampère). Applications. Forces acting between circuits. The solenoid. Law of FaradayNeumann. Law of Lenz. Induction and energy transfer.