D3a - Dipartimento di Scienze Agrarie, Alimentari e Ambientali - Guida degli insegnamenti (Syllabus)
A basic knowledge of mathematics (elementary algebra and trigonometry) is highly recommended.
The teaching method is based on direct lectures, presented to the students in ppt format, downloadable from the teacher's website, for a total of 6 ECTS. The 54 hours are divided between the theoretical aspects of physics (4 ECTS) and practical exercises in the classroom and laboratory (2 ECTS). On the teacher website there are available, in addition to the lessons in the classroom, also several exercises for self-assessment tests and all the information regarding the physics course.
Knowledge and understanding. The course enables students to acquire the basic tools (interpretation of phenomena, presentation of the physics laws and principles) to address and solve practical physics problems. Ability to use the specific language of this discipline.
Applying knowledge and understanding. Ability to expose the accumulated physics knowledge also to non-specialists and ability to find practical solutions to problems arising in the context of his professional activity. Ability to explain the importance and highlight the application outcomes of the issues addressed.
Cross-expertise. a) independent judgment: ability to assess independently the implications and the practical results of the various problems to be solved or situations to be interpreted; b) develop the ability to solve complex problems starting from "packages" of base knowledge that can be put together and matched with other information to get to a higher knowledge level.
The discipline provides basic information concerning the chapters of classical mechanics, fluid mechanics and thermodynamics. The discipline aims to make the student be able to quantitatively solve many practical problems on the studied topics, with examples of applications in the agricultural sector.
1. Measurements. Measurement units. Forces. Newton’s Laws I and III. Force of gravity. Weight force. Normal force. Frictional force. Tension force. Elastic force. Measurements of the forces (1 ECTS).
2. Position and displacement. Speed. Acceleration. Newton's Law II. Trajectory. Uniform motion. Rectilinear uniformly accelerated motion. Falling bodies. The motion in two dimensions. The motion of the projectile. The circular motion (1 ECTS).
3. Work and energy. Conservation of mechanical energy. Non-conservative forces. Impacts. Momentum. Conservation of momentum. Center of mass. Balance of a rigid body. Moment of a force. Equilibrium of a material point. Rotational dynamics (notes) (1 ECTS).
4. Fluid Mechanics: definition of ideal fluid. Properties of fluids. Definition of pressure. Stevin’s law. Archimedes’ principle. Pascal's Law. Continuity equation. Bernoulli’s equation. Real fluids (notes) (1 ECTS).
5. Thermodynamics: Zero law of thermodynamics. Definition of absolute temperature. Specific heat. Heat capacity. State transformations. Latent heat. Thermodynamic systems. Perfect gases. Heat, work and internal energy. First law of thermodynamics. Thermodynamic processes. Cyclic transformations. Second law of thermodynamics. Entropy (1.5 ECTS).
6. The climate machine. Radiation. Electromagnetism. Microscopy (notes) (0.5 ECTS).
Learning evaluation methods
At the end of the course there will be two partial tests with multiple answers (mechanics and thermodynamics), which include both theoretical questions and exercises, followed by an oral test, where the students can discuss the laboratory report, in order to improve their final physics exam mark.
All students also have the option to make a written examination, followed by an oral test and, possibly, the presentation of a laboratory report.
Learning evaluation criteria
The student, during the written and oral tests, will have to demonstrate that they: a) have understood the principles and fundamental laws of the studied arguments; b) are able to demonstrate with practical examples the application of the laws studied during the course; c) are able to solve exercises, applying the laws and principles of mechanics or thermodynamics. To pass the physics exam, the student must demonstrate an overall understanding of the content, present it in a sufficiently correct way, with the use of appropriate technical terminology, and to be able to deal with deductive reasoning that allow to create appropriate links between the studied arguments and to prove that he has acquired a good mastery of them.
Learning measurement criteria
The final mark is attributed in thirtieths. Successful completion of the examination will lead to grades ranging from 18 to 30 “cum laude”.
Final mark allocation criteria
Students who get at the two partial tests (mechanics and thermodynamics, theoretical questions and exercises) an average vote higher than 18/30 (with a minimum score of 15/30 in each partial test), may decide whether to take the oral test, only discuss the laboratory report to improve their marks, or just accept the average of the two partials as the final mark of the physics exam.
For students who do the written exam, it consists of 3 exercises (mechanics, fluids and thermodynamics). The oral examination, mandatory after the written exam, consists of three questions (mechanics, fluids, thermodynamics), on any subject covered during the physics course. The laboratory report may increase by 1-2 points (in thirtieths) the exam mark.
The “cum laude” will be given to students who, having achieved the highest mark, have demonstrated the complete mastery of the subjects.
1) General Physics: Principles and Applications - Giambattista, Richardson, Richardson, McGraw-Hill 2008/2012
2) Fundamentals of Physics - Halliday, Resnick and Walker - CEA – 6th edition.
Monday 3 pm - 4 pm
Tuesday 11 am - 12 am