- Boček V.: Magnets and Inductors with Current, Fair 23, České Budějovice 2018
The forces affecting a magnet placed in the magnetic field of the coil, the so-called electromagnetic pendulum, are investigated in this paper. By consecutive turning on and off of the current flowing through the coil, we will look for the resonant frequency of the pendulum.
- Böhm P.: Experiments with Scales, Fair 22, Olomouc 2017
The paper describes two experiments using digital scales. The first part describes the mass changes when a candle and steel wool are burned. The second part deals with a body submerged in a fluid and (non)dependency of the buoyancy force on mass.
- Bochníček Z.: Up to the skies, Fair 24, Hradec Králové 2019
The paper is dedicated to origination of aerodynamic lift and its explanation using Newton’s laws of motion. This explanation prevents hardships and pitfalls connected to usage of Bernoulli’s equation. Another part describes the flight of birds and insects. Comments on the reasons behind differences between small and big flyers are included into the description of insect flight.
- Drozd Z.: Pot-Physics, Fair 11, Olomouc 2006
In this contribution there are described experiments with a pot. Pot is an available instrument not only for teachers, but also for students, and in physics lessons it is unusual enough to attract attention.
- Dvořák L.: A Bit of Heuristics from Malá Hraštice, Fair 5, Praha 2000
A few ideas from the assembly of students of the Department of Physics Education FMP CU. A guide on how to make a string phone with echoes, balance based on the Archimedes’ law, apparatus for measuring the Young’s modulus of jam, dumplings etc., amplifier constructed so that it picks up a magnet pendulum passing through its balance position. Everything is made of commonly available resources.
- Dvořák L.: More Ideas from Malá Hraštice, This Time with Water, Fair 22, Olomouc 2017
The paper describes a few experiments with water conducted at the spring assembly in Malá Hraštice: 1) the effect of diamagnetism of water on the water surface above the magnet, 2) the apparent depth of an object in water when watching from different angles, 3) a simple measurement of water viscosity and 4) a vertical and horizontal ‘throwing of water’ with the use of a plastic syringe and their connection to the continuity equation.
- Jílek M.: Physics Workshop for Secondary School Students, Fair 7, Praha 2002
This contribution summarizes some of the physics hobby group ideas – finding out, whether a sailboat can be set in motion by blowing in the sail while standing in the rear of the boat, analyzing a rotation of a flying ball, observing the effect of the Coriolis force, observing a flying boomerang, building a model a combustion engine.
- Jílek M.: Practical projects in physics education, Fair 10, Praha 2005
This contribution describes a structure of projects adequate for completion of physics lessons on high schools (demonstration: measurement of surface tension of water) and construction of Magdeburg hemispheres as a student projects.
- Kazachkov A., Salinas A.: Atmospheric pressure in low-cost demonstrations and measurements, Fair 17, Praha 2012
In this paper there are presented two simple experiments for atmospheric pressure measurement with simple devices.
- Konečný P.: Magnus effect, Fair 25, Praha 2020
In this paper, an apparatus is described that was constructed with a goal to demonstrate and compare Magnus effect to other means of influencing boundary layer, like suction, or surface structure, a so called turbulator.
- Konečný P.: Some experiments with thermosensitive films, Fair 13, Plzeň 2008
This contribution deals with a utilization of reverse thermosensitive foils for detection of temperature changes in experiments demonstrating adiabatic compression or expansion of gas. A demonstration of the 3rd Newton’s law of action and reaction in mechanics of fluid is also included.
- Piskač V.: Ice – The Physicist’s friend, Fair 10, Praha 2005
A description of some water and ice anomalies and interesting demonstrative experiments – the change in volume during melting and freezing, relegation of ice, progression of freezing of water in a container, and polarization properties of ice.
- Polák Z.: Measurement of Air Velocity, Fair 5, Praha 2000
A simple measurement of the speed of air flowing from an air flow generator and, as a bonus, a description of some other experiments (balance wheel, the Cartesian diver, rocket…)
- Polák Z.: Simple Experiments, Fair 7, Praha 2002
A few of simple experiments which can be used either as a demonstration during teaching or as a laboratory work (weighing on a sheet of paper, flexible centre impact, interconversion of electrical and mechanical energy, model of a turbine, Foucault currents, alcohol vapour rocket).
- Šabatka Z.: Experiments from Interactive Physics Laboratory – rotating systems, Fair 19, Cheb 2014
The paper describes four experiments that belong to the field of rotating systems, one of the topics with which students could meet during their visits to Interactive Physics Laboratory (http://kdf.mff.cuni.cz/ifl/) at the Faculty of Mathematics and Physics of Charles University in Prague (MFF UK) in the school year 2013/2014. We also briefly describe a working principle of the laboratory.
- Trzebuniak A.: Experimental Set with Many Questions III, Fair 11, Olomouc 2006
Utilization of experimental kits helps the teacher to prepare interesting revision lessons or optional exercises. These sets can liven up the work with students and they can lead to easier understanding and longer keeping of the acquired information.
- Vícha V.: Square bubbles, Fair 24, Hradec Králové 2019
A bubble blown from a small bubble blower takes shape of a perfect sphere. However, in this paper we will focus on the shape of square bubbles. Using graph theory, we will investigate whether square bubbles respect minimum surface.
- Vícha V., Formánek P.: Heat pack, Fair 11, Olomouc 2006
It is possible for some substances to stay in a liquid state at temperatures and pressures below their triple point values. Crystallization in such a state releases its internal energy in the form of heat. Simple measurements concerning this phenomenon can be conducted with a heat pack (Fire Bag)
- Vochozka V.: A quantitative evaluation of experiment „An egg in a bottle“, Fair 24, Hradec Králové 2019
Apparatus’ description and testing of measuring equipment due to which it is possible to quantitatively evaluate an experiment in which an egg is pushed into a bottle.
- Votruba V., Sekal O., Novák J.: Archimedes‘ Theorem Doesn’t Work, Fair 7, Praha 2002
In the contribution there are stated four experiments to demonstrate the Archimedes’ law.