Physics I

Physics I (257 - 15533)
Study: Bachelor in Biomedical Engineering
Semester 2/Spring Semester
1st Year Course/Lower Division

Please note: this course is cross-listed under the majority of engineering departments. You should select the course from the department that best fits your area of study.

Students are Expected to have completed:
Calculus I.
Linear Algebra.

Compentences and Skills that will be Acquired and Learning Results:

The goal of this course is the student can understand the physical phenomena involved in the mechanics of particles and rigid bodies, and its relation to biological systems.

In order to achieve this goal, the following competences and skills have to be acquired:

- Ability to understand and know basic concepts of mechanics of particles and rigid bodies.
- Ability to understand and use the mathematics involved in the physical models.
- Ability to understand and use the scientific method.
- Ability to understand and use the scientific language.
- Ability to develop skills to solve problems.
- Apability to use scientif instruments and analyze experimental data.
- Ability to retrieve and analyse information from different sources.
- Ability to work in a team.

Description of Contents: Course Description

1. Kinematics of a particle.
1.1 Position, velocity and acceleration vectors.
1.2 Motion in 2 and 3 dimensions.Equation of trajectory. Projectile motion.
1.3 Intrinsic components of acceleration (normal and tangential accelerations).
1.4 Circular motion.

2. Dynamics of a particle.
2.1 Newton´s laws. Equations of motion.
2.2 Examples of forces: weight, spring orce, tension, contact forces, friction forces.
2.3 Transformations among systems of reference. Relative motion.
2.4 Forces in linear accelerated systems and circular motion.
2.5 Linear momentum. Angular momentum. Moment of forces.

3. Work and energy. (Conservative and non-conservative forces)
3.1 Work. Power.
3.2 Kinetic energy.
3.3 Conservative forces and potential energy.
3.4 Non-conservative forces.

4. Systems of particles.
4.1 Internal and external forces.
4.2 Center of mass motion.
4.3 Collisions.
4.4 Conservation theorems for a system of particles.Kinetic energy of a system of particles.

5. Dynamics of the Rigid Body.
5.1 Planar motion of the rigid body.
5.2 Moment of Inertia.Parallel axis theorem.
5.3 Angular momentum of the rigid body.
5.4 Planar motion equations.
5.5 Work of forces acting on a rigid body. Kinetic energy.

6. Oscillations.
6.1 Simple Harmonic motion (force and energy).
6.2 Small oscillations.
6.3 Damped oscillations.
6.4 Forced oscillations. Resonances.

7. Fluids
7.1 Pressure and density.
7.2 Hidrostatic equilibrium. Archimedes´principle
7.3 Bernoulli's theorem. Dynamic pressure.
7.4 Laminar and turbulent regimes.

8. Waves
8.1 Wave equation.
8.2 Plane waves.
8.3 Stationary waves.
8.4 Superposition and Interference.
8.5 Sound and light waves.

Learning Activities and Methodology:

Lectures where the theoretical concepts are explained (PO: a)

The lecturer will provide a file with the following information (1 week in advance):
- Main topics to be discussed during the session
- Chapters/sections in each of the text books provided in the bibliography were the studend can read about these topics

Activities in groups (~ 40 students divided in groups of 2-3 people) to solve problems (PO: a, d).

The main skills to be developed in these activities are:
- To understand the statement of the problem (for instance drawing an scheme that summarizes the statement)
- To identify the physical phenomenon involved in the statement and the physical laws related to it.
- To develop a strategy to reach the objective (for instance breaking the problem in small subproblems).
- To be careful in the use of mathematics
- To analyze the reasonability of the result (is the final result reasonable?, are dimensions consistent?)

Small works focused on the search of scientific information in different sources (mainly internet). (PO: a,d)

Laboratory sessions (~20 students divided in groups of 2 students). (PO:b, d)
The main skills to be developed in this activity are:
- To understand that physics is an experimental science and they can reproduce the laws that have been theoretically explained in the lectures.
- To use scientific instruments and to be careful in its operation.
- To be careful in the acquisiton of the experimental data.
- To learn the basis of the management of a scientific data set.
- To write a report with the main results of the experiment.
- To reason in a critical way these results: have we achieved the goals of the experiment?

Assessment System:

Laboratory sessions (15% of final grade) (PO: b, d)
Attendance to the laboratory sessions is compulsory.
Evaluation of the reports. The mark is shared by the members of the group.
Activities in groups (25% of final grade) (PO: a, d)
Attendance.
Midterms.
Delivery and assessment of the proposed activities.
Written exam (60% of final mark) (PO: a)

This exam is made at the end of the semester and it is the same for all the students.
Contents:
- Problems to be solved covering the topics of the program.
- Short theoretical questions as part of the problems.
The minium required grade in the final exam is 3/10.

Basic Bibliography:

Alonso, Finn. Physics. Prentice Hall. 2000
BEER, F.P. y JOHNST0N, E.R. Jr.. Mecánica vectorial para ingenieros (dinámica). Ed. McGraw-Hill.
GETTYS, W.E. et al.. Física clásica y moderna. McGraw-Hill.
Tipler, Mosca. Physics for Scientists and Engineers. Whfreeman. Sixth

Additional Bibliography:

Feynman, RP. Feynman Lectures on Physics. Addison Wesley. 1995