The curricular unit consists of a set of experiments whose objective is the demonstration of physical laws or the determination of essential physical constants. The experiments cover the following topics: Magnetic fields and forces; electric oscillations and resonance; electromagnetic waves, mechanical systems and Modern Physics.
- Ampere Balance: Calibration of a torsion balance; observation of the interaction forces between two currents; verification of Biot-Savart law; determination of the magnetic permeability constant; determination of the horizontal component of earth's magnetic field.
- e/m: observation of the flow of electrons in a magnetic field; verification of interdependence of the trajectory radius of electrons with their speed and intensity of the applied magnetic field; determination of the ratio between the charge values and the electron mass.
- Rotation Liquid: Observation of the surface of a rotation liquid; verification of the parabolic shape of this surface and its dependence with the rotational speed; determination of the value of acceleration of gravity.
- Microwaves: Building of a Michelson interferometer; observation of interference waves; determination of the wavelength of the studied microwaves; observation of the thin film interference of a wave; thin film thickness determination; observation of a frustrated total internal reflection (FTIR); determination of the index of refraction of a prism; determination of a tunnelling constant.
- Physical Pendulum (ruler): Observation of the dependence of the period of oscillation on the distance between the point of suspension and the centre of mass; determination of the moment of inertia of the ruler in relation to the axis passing through its centre of mass.
-Kater Pendulum: Observation of the oscillations in a reversible physical pendulum (Kater Pendulum); determination of the value of speed of gravity.
Bibliography of reference
ABREU, M.C.; MATIAS, L. & PERALTA, L. F. ed. (1994). Física Experimental, Uma Introdução. Presença.
SQUIRES, G. L. (2001). Practical Physics. Cambridge Press.
BEVINGTON, P. & ROBINSON, D. K. (2002).Data Reduction and Error Analysis for the Physical Sciences. 3/e. McGraw Hill.