Système d'Expérimentation Élèves TESS

 
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Equilibre thermique

Principle

When two bodies with different temperatures contact each other, a process of temperature equalisation takes place until both bodies have the same temperature (thermal equilibrium). The students should measure the temporal course of the temperatures of such two bodies ...

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Détails

Numéro d´article: P1042200

Calibration d'un thermomètre (modèle de thermomètre)

Principle

The Celsius temperature scale is defined by the melting and boiling points of water. The students should calibrate a non-graduated thermometer and then make a few measurements with it.
 

Benefits

  • Real stand material for an esecially stable and safe ...
...

 
Détails

Numéro d´article: P1042300

We 1.4 Mesures de température avec un thermocouple

Principle

If two different metals are in contact, a contact potential results from the different electron affinity of the metals' surfaces. The size of this potential is a function of the temperature since the electron's kinetic energy increases with increasing temperature.
These ...

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Détails

Numéro d´article: P1042400

We 2.1 Distilation de liquides et de gaz

Principle

In this experiment the students should qualitatively observe the expansion of water and air during heating.

Benefits

  • Real stand material for an esecially stable and safe setup
  • Student-suitable experiment descriptions with reports available
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Détails

Numéro d´article: P1042500

We 2.2 Dilatation cubique de liquides

Principle

Using water as a model the expansion of a liquid is shown as a function of temperature. In the supplementary problem, the expansion coefficient is calculated at different temperatures. The expansion of water is not linear; its coefficient is not constant.
If you wish to ...

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Détails

Numéro d´article: P1042600

Dilatation de l'air en fonction de la température à pression constante

Principle

Heating a volume of air can lead to both an increase in volume and an increase in pressure. In this experiment the pressure must remain constant. This is achieved by ensuring that the water level in both manometer limbs is the same before reading the ...

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Détails

Numéro d´article: P1042700

Changement de la pression d'air en fonction de la temprature à volume constant

Principle

Heating a volume of air can lead to both an increase in volume and an increase in pressure. In this experiment the volume must be kept constant. This is achieved by marking the initial water level in limb a of the manometer and resetting the water level to this ...

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Détails

Numéro d´article: P1042800

Dilatation des métaux

Principle

Metal tubes are heated with steam. The linear expansion of three different metals is determined with the aid of a rotating-shaft pointer. From this the metals' coefficient of linear expansion is determined (Supplementary problem). The use of a rolling-shaft pointer is ...

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Détails

Numéro d´article: P1042900

We 2.6 Le bimétal

Principle

To understand this experiment the students must be familiar with the linear expansion of metals. In experiment 1 the bending of a bimetal strip during heating is shown. In experiment 2a switch is constructed with the bimetal strip.

Benefits

  • Real stand material for ...
...

 
Détails

Numéro d´article: P1043000

We 2.6 Le bimétal

Principle

In order to be able to understand this experiment, the students must know about the linear expansion of solid objects due to heating. This experiment demonstrates the deformation of a bimetal following the application of heat.

Benefits

  • Experiment guides are very easy to ...
 
Détails

Numéro d´article: P1043001

We 3.1 Transfert thermique dans des corps solides

Principle

The thermal conductivity of different metals and glass should be qualitatively compared to each other.

Benefits

  • Real stand material for an esecially stable and safe setup
  • Student-suitable experiment descriptions with reports available
...

 
Détails

Numéro d´article: P1043100

We 3.2 Coefficient de conduction de chaleur de métaux

Principle

One end of a U-shaped metal rod is immersed in boiling water and the other in cold water. From the warming of the cold water qualitative and quantitative statements can be made about the influence of the rod's composition, length and diameter on the heat flow through it. Since ...

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Détails

Numéro d´article: P1043200

We 3.3 Covection dans des liquides et des gaz

Principle

The students should recognize that heating of liquids or gases causes a current since the heated medium has a lower density than the cold one and, thus, rises.
In closed systems this leads to circulation. The current transports heat energy.

Benefits

  • Real stand material for ...
...

 
Détails

Numéro d´article: P1043300

We 3.4 Conduction thermique dans l'eau

Principle

This experiment shows vividly that water is a poor conductor of heat: while the water at the top is boiling, the piece of ice normally does not melt quickly. A heat flow does not occur since the water is heated at the top.

Benefits

  • Real stand material for an esecially ...
...

 
Détails

Numéro d´article: P1043400

We 3.5 Absorption du rayonnement thermique

Principle

A polished and a black beaker are heated by radiation. Instead of solar radiation a bright flame located in front of the two beakers is used.
Both beakers are filled with air since the heat capacity of water is very large and it would be too slowly heated.

Benefits

  • Real ...
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Détails

Numéro d´article: P1043500

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