Impressive experimental descriptions from the fields of physics,
chemistry and biology that pay attention in particular to the
advantages of the wireless transmission of measured
values using the Cobra4 system. In total more than 120
demonstration and student experiments are described in detail.
Experiments on the interdisciplinary topic "everyday phenomena" are
also 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 |
| Measuring the height of a tower |
P9000462 |
| What happens during the flash recycling time of a camera? |
P9000660 |
| Terrain mapping |
P9000562 |
| Floating and sinking |
P9000260 |
| Altitude measurement on a trail |
P9000362 |
| Why do light bulbs burn out mostly when being turned on? |
P9000160 |
| Dynamic friction |
P6000060 |
| Rolling friction |
P6000160 |
| Uniformly accelerated motion |
P6000260 |
| Melting and freezing curve of sodium thiosulphate |
P7105060 |
| Electrolysis |
P7105160 |
| Temperature change when a gas is liquefied by compression |
P7200560 |
| Why do energy-saving lamps need some time to achieve fullbrightness? |
P9000060 |
| Floating and sinking |
P1530560 |
| Human electrocardiography (ECG) (Cobra4) |
P4020160 |
| How can ships made of steel float on water? |
P1530460 |
| Why do mobile phones or laptops need a charger/adapter? |
P1530360 |
| What happens during the flash recycling time of a camera? |
P1530260 |
| Why do light bulbs burn out mostly when being turned on? |
P1530160 |
| 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 |
| We visit a wastewater treatment plant |
P1521662 |
| Impact of the forest type on humidity, temperature and brightness |
P1521762 |
| Learning stations using the experimentation case"Cobra4 Mobile, Environment and outdoors" |
P1521562 |
| Salinity changes of a watercourse |
P1521462 |
| Raised bog and fen |
P1521262 |
| Air pressure and relative humidity in an aircraft |
P1521362 |
| Salinity of soils and plant substrates |
P1521163 |
| Salinity of soils and plant substrates |
P1521162 |
| The pH value of various soils |
P1521063 |
| Comparison of soil and air temperatures in the course of a day |
P1520962 |
| The pH value of various soils |
P1521062 |
| 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 |
| 24-hour weather observation |
P1520461 |
| Measuring the height of a tower |
P1520362 |
| 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 |
| Conductivity of various water samples |
P1520060 |
| Temperature dependence of conductivity |
P1510160 |
| Series resonant circuit |
P1501560 |
| Parallel resonant circuit |
P1501460 |
| Resonant circuit |
P1501360 |
| RC low-pass filter |
P1501260 |
| RC high-pass filter |
P1501160 |
| A coil in an alternating current circuit |
P1501060 |
| Capacitor in the alternating current circuit |
P1500960 |
| Self-induction |
P1500860 |
| Ohm's law |
P1500660 |
| Properties of the atmospheric pressure |
P1500460 |
| Acceleration of a spring pendulum with an acceleration sensor |
P1500560 |
| Dependence of the frequency of a spring pendulum on the pen-dulum mass and spring constant (on the magnetic board) |
P1500360 |
| Frequency of a spring pendulum (on the magnetic board) |
P1500260 |
| Zero gravity during free fall |
P1500160 |
| Cooling by evacuation |
P1500060 |
| Floating and sinking |
P1424560 |
| Bridge rectifiers |
P1378360 |
| The series motor |
P1376360 |
| The permanent magnet DC motor |
P1376260 |
| Electrolysis |
P1375160 |
| Diodes as rectifiers |
P1373860 |
| Charging and discharging a capacitor |
P1373560 |
| Diodes as electrical valves |
P1373760 |
| The potentiometer |
P1373160 |
| Electrical power and work |
P1373360 |
| Current and resistance in a series connection |
P1372960 |
| Enzyme inhibition (poisoning of enzymes) |
P1370060 |
| Current and resistance in a parallel connection |
P1372860 |
| Resistance of wires - dependence on the length and cross-section |
P1372560 |
| 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 |
| Comparison of the heat capacities of water and soil |
P1350960 |
| We measure our eye movements - electrooculography |
P1350460 |
| We investigate our muscular power - electromyography |
P1350360 |
| Boyle's law |
P1350260 |
| Specific heat capacity of liquids |
P1349360 |
| Charles' law |
P1350060 |
| Amontons law |
P1350160 |
| 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 |
| Generation of an alternating voltage, rectification and smoothing |
P1331360 |
| Inrush current of a light bulb |
P1330860 |
| Switch-on behaviour of a capacitance |
P1331060 |
| Ohm's law |
P1330361 |
| Ohm's law |
P1330360 |
| 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 |
| Temperature of mixtures and heat capacity of the calorimeter |
P1044160 |
| Specific heat capacity of metals |
P1044260 |
| Specific heat capacity of water |
P1043960 |
| 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 |
P0990162 |
| Weight |
P0999060 |
| Water quality - contamination with heavy metals |
P0990163 |
| Electronystagmography |
P0873560 |
| Coupled pendula on the magnetic board |
P0515760 |
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