Impressive experimental descriptions from the fields of physics, chemistry and biology that pays attention in particular to the advantages of the radio-controlled transmission of measured values with the Cobra4 system. In total more than 120 demonstration and student experiments are described in detail. Experiments on the interdisciplinary topic "everyday life phenomena" are contained.
| Title |
Product |
| Air pressure and relative humidity in an aircraft |
P9000962 |
| Why do mobile phones or laptops need a charger/adapter? |
P9000760 |
| How can ships made of steel float on water? |
P9000860 |
| What happens during the flash recycling time of a camera? |
P9000660 |
| Terrain mapping |
P9000562 |
| Measuring the height of a tower |
P9000462 |
| Altitude measurement on a trail |
P9000362 |
| Why do light bulbs burn out mostly when being turned on? |
P9000160 |
| Floating and sinking |
P9000260 |
| Temperature change when a gas is liquefied by compression |
P7200560 |
| Why do energy-saving lamps need some time to achieve fullbrightness? |
P9000060 |
| Electrolysis |
P7105160 |
| Melting and freezing curve of sodium thiosulphate |
P7105060 |
| Dynamic friction |
P6000060 |
| Rolling friction |
P6000160 |
| Uniformly accelerated motion |
P6000260 |
| Human electrocardiography (ECG) (Cobra4) |
P4020160 |
| How can ships made of steel float on water? |
P1530460 |
| Floating and sinking |
P1530560 |
| Why do mobile phones or laptops need a charger/adapter? |
P1530360 |
| Why do light bulbs burn out mostly when being turned on? |
P1530160 |
| What happens during the flash recycling time of a camera? |
P1530260 |
| Why do energy-saving lamps need some time to achieve fullbrightness? |
P1530060 |
| We investigate our physical fitness - the heart under stressEP3 |
P1522160 |
| We measure our reading speed - measuring reading skills EP6 |
P1522260 |
| We determine our heart frequency EP2 |
P1522060 |
| Impact of the forest type on humidity, temperature and brightness |
P1521762 |
| We visit a wastewater treatment plant |
P1521662 |
| Learning stations using the experimentation case"Cobra4 Mobile, Environment and outdoors" |
P1521562 |
| Salinity changes of a watercourse |
P1521462 |
| Air pressure and relative humidity in an aircraft |
P1521362 |
| Salinity of soils and plant substrates |
P1521163 |
| Raised bog and fen |
P1521262 |
| Salinity of soils and plant substrates |
P1521162 |
| The pH value of various soils |
P1521063 |
| The pH value of various soils |
P1521062 |
| Comparison of soil and air temperatures in the course of a day |
P1520962 |
| Acidity changes of a watercourse |
P1520862 |
| Changes of the light conditions in a deciduous forest |
P1520762 |
| Terrain mapping |
P1520662 |
| Relative humidity |
P1520560 |
| Weather observation with the Cobra4 Mobile-Link |
P1520462 |
| Measuring the height of a tower |
P1520362 |
| 24-hour weather observation |
P1520461 |
| Altitude measurement on a trail |
P1520262 |
| Warm-up time of an energy-saving lamp |
P1520160 |
| We examine our drinking water |
P1520063 |
| We examine our drinking water |
P1520062 |
| Temperature dependence of conductivity |
P1510160 |
| Conductivity of various water samples |
P1520060 |
| Series resonant circuit |
P1501560 |
| Parallel resonant circuit |
P1501460 |
| Resonant circuit |
P1501360 |
| RC low-pass filter |
P1501260 |
| A coil in an alternating current circuit |
P1501060 |
| RC high-pass filter |
P1501160 |
| Capacitor in the alternating current circuit |
P1500960 |
| Self-induction |
P1500860 |
| Acceleration of a spring pendulum with an acceleration sensor |
P1500560 |
| Ohm's law |
P1500660 |
| Dependence of the frequency of a spring pendulum on the pen-dulum mass and spring constant (on the magnetic board) |
P1500360 |
| Properties of the atmospheric pressure |
P1500460 |
| Frequency of a spring pendulum (on the magnetic board) |
P1500260 |
| Zero gravity during free fall |
P1500160 |
| Cooling by evacuation |
P1500060 |
| Floating and sinking |
P1424560 |
| The series motor |
P1376360 |
| Bridge rectifiers |
P1378360 |
| The permanent magnet DC motor |
P1376260 |
| Electrolysis |
P1375160 |
| Diodes as rectifiers |
P1373860 |
| Diodes as electrical valves |
P1373760 |
| Electrical power and work |
P1373360 |
| Charging and discharging a capacitor |
P1373560 |
| The potentiometer |
P1373160 |
| Current and resistance in a series connection |
P1372960 |
| Current and resistance in a parallel connection |
P1372860 |
| Resistance of wires - dependence on the length and cross-section |
P1372560 |
| Enzyme inhibition (poisoning of enzymes) |
P1370060 |
| Substrate inhibition of enzymes |
P1369960 |
| Glycolysis (temperature measurement) |
P1351460 |
| The Bergmann rule: heat loss as a function of the body surface area and volume |
P1351060 |
| Transpiration of leaves |
P1351260 |
| Boyle's law |
P1350260 |
| We investigate our muscular power - electromyography |
P1350360 |
| Comparison of the heat capacities of water and soil |
P1350960 |
| We measure our eye movements - electrooculography |
P1350460 |
| Charles' law |
P1350060 |
| Specific heat capacity of liquids |
P1349360 |
| Specific evaporation heat of water |
P1349260 |
| Specific heat capacity of water |
P1349160 |
| Parallel and series connection of helical springs on themagnetic board |
P1337860 |
| We investigate our heartbeat - electrocardiography |
P1332760 |
| Switch-on behaviour of a capacitance |
P1331060 |
| Generation of an alternating voltage, rectification and smoothing |
P1331360 |
| Ohm's law |
P1330360 |
| Inrush current of a light bulb |
P1330860 |
| Buoyancy in water on the magnetic board (Archimedes' prin-ciple) |
P1297260 |
| Evaporation |
P1045160 |
| Melting and freezing curve of sodium thiosulphate |
P1044660 |
| Conversion of mechanical energy into internal energy |
P1044460 |
| Calorimetric temperature measurement |
P1044360 |
| Specific heat capacity of metals |
P1044260 |
| Specific heat capacity of water |
P1043960 |
| Temperature of mixtures and heat capacity of the calorimeter |
P1044160 |
| Heating of various liquids |
P1043860 |
| Heating of water |
P1043760 |
| Thermal insulation |
P1043660 |
| Thermal equilibrium |
P1042260 |
| Helical spring pendulum |
P1002760 |
| Bending of a leaf spring |
P0999260 |
| Water quality - contamination with heavy metals |
P0990163 |
| Weight |
P0999060 |
| Electronystagmography |
P0873560 |
| Water quality - contamination with heavy metals |
P0990162 |
| Coupled pendula on the magnetic board |
P0515760 |
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