- 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.
- 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.
- Lepil O., Kodejška Č.: Unconventional experiments with coupled oscillators, Fair 22, Olomouc 2017
The paper described several experiments with coupled oscillators. Computer software and voltage sensors are used to study the events in the oscillators.
- Mathelitsch L.: Physics and Sports, Fair 22, Olomouc 2017
The paper points out advantages of including the topic Physics and Sports into school instruction. Various examples of the use of physics in sports are also described here. It deals with the high jump, the optimal angle for a shot put, and world records.
- Prokop M., Daněk J.: UV Protection, Fair 22, Olomouc 2017
Do expensive glasses with UV filters protect us more than cheap ones? And what about suntan lotions? The paper presents the results of two years of experimentation.
- Žilavý P.: Misbehaving Electrostatics II, Fair 22, Olomouc 2017
The school Van de Graaff generator is one of the basic school instruments used for electrostatics experiments. Nevertheless, the principle of its function is often a little bit of a mystery to many people. How does it really work? How to look for the fault when it doesn’t work properly? An unusual way of looking for the answers to these questions with the use of a digital oscilloscope with a high-voltage probe is the content of the paper.