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Calibration of a thermometer (thermometer model)

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 ...
...

 
Детали

Продукт No: P1042300

Temperature measurement with a 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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Детали

Продукт No: P1042400

Expansion of liquids and gases

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
...

 
Детали

Продукт No: P1042500

Expansion coefficient of liquids

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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Детали

Продукт No: P1042600

Expansion of air at constant pressure

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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Детали

Продукт No: P1042700

Expansion of air at constant volume

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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Детали

Продукт No: P1042800

Linear expansion of metals

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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Детали

Продукт No: P1042900

Bimetallic principle

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 ...
...

 
Детали

Продукт No: P1043000

Bimetallic principle

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 ...
 
Детали

Продукт No: P1043001

Thermal conduction of solid bodies

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
...

 
Детали

Продукт No: P1043100

Thermal conduction coefficient of metals

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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Детали

Продукт No: P1043200

Thermal convection in liquids and gases

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 ...
...

 
Детали

Продукт No: P1043300

Thermal conduction in liquids

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 ...
...

 
Детали

Продукт No: P1043400

Absorption of thermal radiation

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 ...
...

 
Детали

Продукт No: P1043500

Thermal insulation

Principle

The cooling rate of water in a simple glass beaker and in an insulated calorimeter are compared.

Benefits

  • Real stand material for an esecially stable and safe setup
  • Own construction of a calorimeter deepens the understanding
  • Student-suitable experiment descriptions with ...
...

 
Детали

Продукт No: P1043600

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