The curricular unit consists of a set of experiments whose objective is the demonstration of physical laws or the determination of fundamental physical constants.
The experiments cover the following topics: magnetic fields and forces, electric oscillations and resonance, electromagnetic waves, mechanical systems and modern physics.
- Ampère balance: torsion balance calibration, study of the interactions between electric currents;
- Measurement of the charge/mass ratio of the electron: magnetic bottle, electron motion under magnetic fields;
- Observation of the surface of a rotating liquid: determination of gravity acceleration;
- Microwaves: Michelson interferometer, determination of wavelength, thin film thickness and refraction index of a prism;
- Physical pendulum: determination of the inertia moment of the ruler relative to the main axis;
- Kater pendulum: determination of the gravity acceleration;
- Determination of the earth magnetic field.
Bibliography of reference
MC Abreu, L Matias, LF Peralta, Física Experimental, uma introdução. Presença, 1994.
GL Squires, Practical physics, Cambridge Press, 2001
P Bevington and DK Robinson, Data reduction and error analysis for the physical sciences, McGraw Hill, 2002