99623 - GENERAL PHYSICS

Conoscenze e abilità da conseguire

Through this course the student learns the basic elements of Classical Mechanics: vectorial analysis, kinematics laws, dynamics both of point and of single body, work and energy concept. At the end of this course, students will learn: 1) to use mathematical models as a medium for quantitative reasoning and describing physical reality, 2) to apply the classical conservation laws as a basis of deriving and understanding physics principles, 3) to describe physics concepts verbally, graphically, and mathematically, 4) problem solving skills related to physics principles.

Contenuti

Measurements and unities

Introduction; measurements; fundamental quantities and units; units and derived dimensions; space, time and matter.
Vectors

Vectors, operations between vectors, reference systems.
Kinematics in two and three dimensions

Rectilinear motion, velocity and acceleration; some special motions; vector representation of velocity and acceleration; relative motions, composition of velocity and accelerations and Galilean transformations; curvilinear motion, velocity and tangential and normal accelerations; circular motion, angular, radial and transversal velocities and angular acceleration; Poisson transformation; relative motions with respect to reference systems in translational and rotational motion; Coriolis acceleration.
Force, quantity of motion and momenta

First law of the dynamics (the law of inertia); inertial reference systems; forces and the second (2nd) law of dynamics; some examples about forces; third law of dynamics; some applications of second law; elastic force and resolution of the equation of motion for harmonic oscillations; friction and its properties; resistance of a medium and limit velocity; circular uniform motion, centripetal force and motion discussion in the rotational reference system; quantity of motion (linear momentum); torque of a force; angular version of the 2nd law of dynamics.
Work and energy

Work of a force and power; kinetic energy; unit of the energy; work of a constant force; potential energy and relation with the work; relation between the torque of a force and the potential energy in the curvilinear planar motion; conservation of the energy of a particle and conservative forces; non-conservative forces and energy dissipation.
Particle systems, collisions, rigid bodies and equilibrium

Motion of the centre of mass of a particle system, isolated system; system subjected to external forces; reduced mass; angular momentum of a particle system; energy conservation of a particle system and total energy; internal energy of a particle system; particle collisions; elastic and inelastic collisions; rigid body and its angular momentum; equation of motion for the rotation of a rigid body; rotational kinetic energy of a rigid body; pure rolling motion; equilibrium of a rigid body.

Testi/Bibliografia

S. Focardi, I. Massa, A. Uguzzoni, M. Villa, “Fisica Generale – Meccanica e Termodinamica”, Casa Editrice Ambrosiana;

•Silvestrini, Mencuccini, “Fisica 1 – Meccanica e Termodinamica”, Liguori Editore;

• D. C. Giancoli, “Fisica 1”, Casa Editrice Ambrosiana;

•Alliday, Resnick, “Fisica 1”, Casa Editrice Ambrosiana;

•Mazzoldi, Nigro, Voci, “Elementi di Fisica. Meccanica e termodinamica”, EdiSES;

Exercise books:

• M. Villa, A. Uguzzoni: Esercizi di Fisica, Maccanica
  
  
• S. De Falco, A. Quaranta, Problemi di esame di Fisica Generale, Pitagora editrice, Bologna.
  
  
• A. Bertin, S. De Castro, N. Semprini Cesari, A. Vitale, A. Zoccoli, Problemi di Esame di Fisica Generale,
  Società editrice Esculapio s.r.l. - Progetto Leonardo - Bologna.

Metodi didattici

Frontal lessons will be used, in presence or online depending on pandemic situation.

Slides will be used during lessons complemented with hand-written explanation directly projected on the slides by the professor.

Slides will be available on Virtuale: https://virtuale.unibo.it/ before the beginning of the lessons in order to avoid students to loose time in recopying them.

Modalità di verifica e valutazione dell'apprendimento

Final exams with:

• a written part consisting of 4 exercises. The exams is considered passed with at least 18/30 points.
  

• an oral part with questions about all the program, theorems and demonstrations.

Strumenti a supporto della didattica

The presence at the final exams must be confirmed at least 3 days before written or oral exam date by signing up on the web page:

[http://almaesami.unibo.it/almaesami/studenti]

Orario di ricevimento

Consulta il sito web di Sara Valentinetti

Consulta il sito web di Enrico Balugani

Consulta il sito web di Enrico Balugani