# PHYSICS I

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- Versione italiana
- Academic year
- 2022/2023
- Teacher
- BARBARA RICCI
- Credits
- 6
- Didactic period
- Secondo Semestre
- SSD
- FIS/01

#### Training objectives

- The goal of this course is that of providing to the student the fundamentals of classic physics, in particular of mechanics and thermodynamics, which are needed grounds of all sciences, in particular of engineering.

The main knowledge acquired will be:

-comprehension of the laws govering the motion of one point and of a sister of points

-main features relatives to dynamic and static of rigid body

-main features relatives to fluidostatic and fluidodynamics

-principles governing perfect gas behavior

-comprehension of the firsto law of thermodynamics

The main expertises acquired will be:

-resolution of problems involving firstly simple dynamical systems, next system composed by more interacting body

-resolution of fluidostatic and fluidodynamics problems, only relatively to ideal fluid

-resolution of simple thermodinamics exercises #### Prerequisites

- Elementary background of algebra, trigonometry, geometry and infinitesimal calculus.
#### Course programme

- Introduction to Physics; scientific method;

fundamental and derived physical quantities;

International System of Units (IS).

Calculus with vectors. Derivatives of vectors.

Kinematic: reference frames. particle law of motion;

velocity and acceleration.

Transformation laws of speed and acceleration in relative motions. Centripetal and Coriolis acceleration.

Particle dynamics: laws; inertial reference frames; inertial mass;

main types of forces;inertial forces; simple harmonic motion;

simple pendulum.

Angular momentum and torque;

Newton's second law for rotation;

Gravitational Force;

Central forces and properties.

Impulse-linear momentum theorem;

Static and dynamic friction forces;

drag force; notes about motion of a body in fluid,

Work; power; kinetic energy; work-kinetic energy theorem; conservative forces; potential energy; conservation of the mechanical energy theorem. Applications.

Dynamics of particle systems: internal and external forces; linear momentum theorem; angular momentum; basic equations; center of mass and related theorem; reduced mass; angular momentum conservation; Koenig theorem.

Dynamics of rigid bodies: center of mass motion; angular momentum; momentum of inertia; Huygens-Steiner theorem; equation of rotational motion of a body about a main axis of inertia; kinetic energy of a body rotating and traslating; Rolling of a rigid body and its properties; precession of the angular momentum.

Basic concepts of static and dynamic of fluids. Stevin's law, Archimedes principle. Bernoulli Theorem and its applications.

Thermal and thermodynamic equilibrium. Temperature and its measurement.

Heat and specific heat. Heat propagation.

Thermodynamic systems. Equation of state. PVT systems. Work in thermodynamics. Work and heat.

First principle of thermodynamics.

Perfect gas law, reversible and non reversible transformations, #### Didactic methods

- Lectures on theory and its applications.

A tutor is also available for helping and integrating the learning procedure #### Learning assessment procedures

- The learning assessment procedures is based on two tests:

1)Written test based on exercises to be solved. Two exercises must be solved in 1.5 hours with the auxilium of the Reference texts. The minimum mark to pass is 15/30 up to 30/30

2)Oral exam on topic theory. The minimal mark to pass is 15/30 up to 30/30

The definitive mark is obtained as the average between written test and oral exam, it must be not less than 18/30.

The successful of the examination attests the acquisition of the skills, reported in the above section "obiettivi formativi".

More detailed and updated information about the examination is available at the web site https://www.fe.infn.it/~ricci/courses/INGEGNERIA/centro #### Reference texts

- Each student can freeely choose among the following textbooks:

1) Mazzoldi, Nigro, Voci, Elementi di Fisica Volume I, Meccanica e Termodinamica, Edizioni Edises

2) Mencuccini, Silvestrini, Fisica I (Meccanica e Termodinamica), Casa Editrice Ambrosiana, Milano

3) Focardi, Massa, Uguzzoni, Villa, Fisica Generale Meccanica e Termodinamica, Casa editrice Ambrosiana

For exercises resolutions, the following books are suggested:

1) M. Villa e A. Ugozzini, Esercizi di Fisica (Meccanica), Casa Editrice Ambrosiana, Milano.

2)P. Mazzoldi, A. Saggion, C Voci, Problemi di Fisica Generale (Meccanica, Termodinamica), Edizioni Libreria Cortina, Padova

Additional information are available at the web site:

www.fe.infn.it/~ricci/courses/INGEGNERIA/centro.htm