Unit PHYSICS
- Course
- Food science and technology
- Study-unit Code
- GP000936
- Curriculum
- Tecnologie agro-alimentari
- Teacher
- Keida Kanxheri
- Teachers
-
- Keida Kanxheri
- Francesca Ripanti (Codocenza)
- Hours
- 36 ore - Keida Kanxheri
- 18 ore (Codocenza) - Francesca Ripanti
- CFU
- 6
- Course Regulation
- Coorte 2022
- Offered
- 2022/23
- Learning activities
- Base
- Area
- Matematiche, fisiche, informatiche e statistiche
- Academic discipline
- FIS/07
- Type of study-unit
- Obbligatorio (Required)
- Type of learning activities
- Attività formativa monodisciplinare
- Language of instruction
- Italian
- Contents
- Measurement.Motion Along a Straight Line.Vectors.Motion in Two & Three Dimensions. Force and Motion - I.Force and Motion - II.Kinetic Energy & Work.Potential Energy & Conservation of Energy.Fluids.Temperature, Heat & Thermodynamics
- Reference texts
- The following textbooks are advised, alternatively:
- Young, Freedman, Ford, Principi di Fisica, Vol. 1, PEARSON; - Educational objectives
- The student is expected to acquire the basic knowledge about the physical laws that are fundamental for the comprehension of natural, productive and technological processes: physical quantities and units, vector calculations, kinematics and dynamics of the material point, work and energy, statics and dynamics of fluids, calorimetry, thermodynamics. The student is also expected to apply such knowledge in the solution of simple problems and practical applications.
- Prerequisites
- Basic notions of algebra (power, roots, solution of first and second order equations), geometry (angles, properties of triangles, Cartesian systems, area and volume of common plane and solid figures), analysis (elementary functions like polynomial, trigonometric, exponential and logarithmic functions, derivatives and graphical interpretation, integrals of simple functions).
- Teaching methods
- The course is essentially divided into 4 topics (in addition to the introductory part): kinematics and dynamics of the material point, work and energy, fluid mechanics, thermodynamics and calorimetry. Each topic will be addressed through lectures during which the theoretical bases of each topic will be presented, accompanied by examples and exercises. There will be optional activities in classroom and at home that will increase, if carried out properly, the final vote.
- Other information
- Attending the lectures and exercise classes is not mandatory, but advised.
- Learning verification modality
- The exam includes a written test and an optional oral exam.
Each test lasts 90 minutes and consists of multiple choice questions.
The oral exam is optional and will consist of a discussion of about 20 minutes aimed at verifying the level of knowledge of the theoretical topics, the ability to communicate them using an appropriate language. - Extended program
- Units, dimensions, measurements, orders of magnitude, estimates, dimensional Analysis.
Motion: reference systems, approximations. Motion in one dimension: position, displacement, average velocity, velocity, acceleration. Motion with constant velocity. Motion with constant acceleration. Free-fall under gravity. Vectors and their components, elementary vector operations. Motion in two and three dimensions: position, displacement, average velocity, velocity, average acceleration, acceleration. Projectile motion. Uniform circular motion.
Forces: motion and equilibrium. Mass. Newton's first, second and third law. Some specific forces: weight, normal component of the reaction, tension, friction, elastic forces. Work. Calculation of the work in elementary cases. Kinetic energy. Work-energy theorem. Conservative forces and potential energy. Calculation of the potential energy in elementary cases. Spring potential energy. Conservation of energy. Non-conservative forces and dissipation.
Properties of fluids: density, pressure. Statics of fluids: Stevino’s law, Pascal’s principle, Archimede’s principle. Dynamics of ideal fluids: flow, flow lines, laminar motion, continuity equation, Bernoulli’s equation.
Temperature: thermal equilibrium and zero law of thermodynamics. Celsius and Kelvin scales. Thermal expansion (linear, surface, volume expansion). Heat. Thermal capacity and specific heat. Latent heat and phase transition. Heat transfer mechanisms. Thermodynamic systems and their properties. Thermodynamic transformations. Equations of state. Perfect gas and their equation of state. Kinetic theory of the perfect gas. Work in thermodynamics. First law of thermodynamics. Internal energy and temperature. Thermodynamic transformations of the perfect gas and first law. Thermodynamic cycles. Thermal machines and refrigerators, ideal machines and efficiency. Second law of thermodynamics (Kelvin’s and Clausius’s formulations, equivalency). Entropy.