Experimental sets

All materials for download are in Czech only (with an exception of Optics – qualitative approach) .

1. Electrostatics

Keywords: electric charge, electric field, plate capacitor, electric potential, voltage, capacitance.

Students usually manage to go through 4 experimental units within one visit in the IPL.

Experimental units:

Electric field around a charged spherical conductor. Students measure the dependence of the electric field intensity on the charge of the sphere and on the distance from its centre.
Experiments with simple plate capacitors. Students quantitatively verify the effect of surface area and plate distance on the capacitance of a plate capacitor. Finally, they determine the relative permittivity of the paper or glass.
Playing with capacitors. The aim of a few simple experiments is to show the relationships between charge, voltage and capacitance of a capacitor. In addition, students determine the capacitance of different conductors including their own body.
Electrostatics with straws. Set of simple experiments supporting conceptual understanding of electrostatic induction and dielectric polarization. Using Coulomb's law, students also estimate the charge on straws.
How to illustrate electric field? Within the unit, students use an applet designed to model electric fields; the aim is to approximate the abstract quantities describing electric field, namely its intensity and potential.
Construction of an electric charge indicator. Using soldering, students build a simple charge detector.