Elements of physics

A.Y. 2020/2021
Overall hours
FIS/03 FIS/05
Learning objectives
The course aims to provide basic knowledge of electromagnetism, and mechanisms of heat transfer, fluid mechanics and gas vapor mixtures, illustrating some applications in the catering sector.
Expected learning outcomes
The student will acquire the knowledge for the correct interpretation of physical phenomena and related laws. He will have the ability to address and solve numerical exercises applied to cases of interest in the agri-food sector.
Course syllabus and organization

Single session

Lesson period
Second semester
Lessons can be followed live using the Zoom platform and will also be recorded so that students can follow them asynchronously. Lessons recordings will be available to students on the Ariel site of the course.

According to the COVID-19 situation students might be able to follow some of the lessons with physical presence. The procedures to participate to such lessons (students will have to book with a dedicated app) will be published in advance on the Ariel site of the course. The same will be for any other update following the evolution of the COVID-19 pandemic.
Course syllabus
FUNDAMENTALS OF ELEMENTARY PHYSICS Scalar and vector fundamental physical quantities. Units of measure. Elements of elementary trigonometry.

MECHANICS Position and time law, speed and acceleration.
Uniform and uniformly accelerated motion. Rotational motion and angular velocity. Strength and mass. Principles of dynamics. Weight and gravitational force. The friction. Work and kinetic energy. Conservation of mechanical energy. Mechanical power.

Fundamentals of electromagnetism
-> Electric charge, Coulomb's law, electric fields, electric potential
-> Electric current, electrical resistance and capacity, Ohm's law, electrical circuits with resistors and capacitors, Joule effect, power of a circuit
-> Magnetic fields, Lorentz's force, motion of electric charges in magnetic fields, the induction stove
-> The Hertz experiment, electromagnetic waves, the relationship between the electric and magnetic fields in an electromagnetic waves. Energy and power transfered by an electromagnetic wave

Fundamentals of heat transfer phenomena
-> Basic concepts: flux, temperature, heat, volume, density, pressure, specific heat, energy conservation, steady state conditions
-> Heat transfer phenomena
-> Conduction: Fourier's law, thermal conduction, conduction through simple and composite walls
-> Convection: natural and forced convection, heat exchange through conduction and convection, thermal resistance, analogy with electrical resistance, equivalent circuits
-> Radiative exchange: Planck's law, Stefan Boltzmann and Wien laws, heat exchange between objects with simple geometry

Applications in the field of food treatment
-> Overview of conventional and non conventional food treatment methods
-> Treatments with ohmic heating
-> Treatments with pulsed electric fields
-> Treatments with pulsed light
Prerequisites for admission
Elementary algebra, trigonometry, logarithms, functions, derivatives and definite integrals with geometrical interpretations
Teaching methods
The course is based on lessons and drills regarding the topics discussed during the theory lessons
Teaching Resources
Slides available on Ariel

Suggested books:
-> Serway, Principles of Physics, Brooks/Cole
-> Y.A. Cengel, Heat transfer, McGraw-Hill
Assessment methods and Criteria
The exam is written and the student must solve exercises in which he/she demonstrates his/her understanding of the theoretical concepts discussed in the course. The exam can be split into two parts or taken in a single occurrence covering the two course modules.

Every partial exam contains three exercises to be solved in two hours. The general exam contains four exercises to be solved in three hours.

The student can try each partial exam three times (during April-May for the first module, in June, July and September for the second module. The student must have passed the first partial exam to take the second. If the second partial exam is not passed within the three sessions he/she must take the complete exam.
Unita' didattica 1
FIS/03 - PHYSICS OF MATTER - University credits: 0
FIS/05 - ASTRONOMY AND ASTROPHYSICS - University credits: 0
Practicals: 16 hours
Lessons: 24 hours
Unita' didattica 2
FIS/03 - PHYSICS OF MATTER - University credits: 0
FIS/05 - ASTRONOMY AND ASTROPHYSICS - University credits: 0
Practicals: 16 hours
Lessons: 24 hours
Professor: Mennella Aniello