Système d'Expérimentation Élèves TESS

 
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Me 2.13 Forces d'appui d'une poutre sans charge

Principle

The students should determine the load pressures on an unloaded beam with (1) symmetrical and (2) unsymmetrical beam suspension.

The beam supports have been replaced by suspending treads so that the forces can be better measured with spring ... ...

 
Détails

Numéro d´article: P1000000

Me 2.14 Forces d'appui d'une poutre avec charge

Principle

Having completed their measurements on an unloaded beam (see ME 2.13), the students should now determine the effect of a load on the loading pressure in dependence on the point of application of the load to the beam.

In the evaluation the influence of a load on one end of ...

...

 
Détails

Numéro d´article: P1000100

Me 2.15 Force de rappel d'un pendule en extension

Principle

The students should measure the restoring force F of a deflected pendulum as a function of the deflection x for two different pendulum lengths.

Additionally, they should calculate the ratios x / l and F / Fg and compare them with each other. From the ...

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Détails

Numéro d´article: P1000200

Me 2.16 Frottements

Principle

With the aid of the friction block the students should observe that different surfaces result in different frictional forces. The sliding properties of the interacting surfaces should be especially stressed.

Further, the difference between static friction and ...

...

 
Détails

Numéro d´article: P1000300

Me 2.17 Coefficients de frottements

Principle

Using a friction block, the students should establish that the frictional force is independent of the surface area.
For a constant surface area the students should vary the mass of the friction block and measure the frictional force Fr in each case. A graph of these results ...

...

 
Détails

Numéro d´article: P1000400

Me 3.2 Levier du premier genre

Principle

On a double-sided lever the students should verify the law "force × force arm = load × load arm" and be able to present it as a formula.

In a supplementary problem the term moment of rotation can be treated and the law of the ...

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Détails

Numéro d´article: P1000600

Me 3.3 Levier du deuxième genre

Principle

In Experiment ME 3.2 (Double-sided lever) the students became familiar with the law of the lever and its representation in the form "Sum of all moments of rotation equals zero". In this experiment they should investigate the one-sided lever in the same way and establish its ...

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Détails

Numéro d´article: P1000700

Me 3.4 Forces et déplacements sur la pouile fixe

Principle

The students should deflect a force with a fixed pulley and determine whether the forces and distances are changed by doing this.

Further, through experiment and calculation they should determine whether the products of load × load distance and force × ...

...

 
Détails

Numéro d´article: P1000800

Me 3.5 Forces et déplacements sur la poulie mobile

Principle

  1. The students should determine the forces which occur on both supporting lines of a movable pulley when it is loaded with various masses.
  2. Further, they should change the point of impact of the force (the force distance) and examine the effect on the load (load distance). ...
...

 
Détails

Numéro d´article: P1000900

Me 3.6 Poulie multiple composée d'une poulie mobile et fixe

Principle

The students should recognize on a simple block and tackle that the force required to lift a specific load can be reduced by half compared with the weight (force) by using an arrangement of 2 pulleys. However, a longer distance must be covered. By comparing the products ...

...

 
Détails

Numéro d´article: P1001000

Me 3.7 Palan à quatre poulies

Principle

Using a block and tackle as an example, the students should observe that the force, which is necessary to lift a given load, decreases in direct correlation with the number of pulleys.

  1. They should determine how much larger the weight force of the load is compared ...
...

 
Détails

Numéro d´article: P1001100

Me 3.8 Forces et déplacements sur la roue à gradins

Principle

  1. The students should measure the forces which maintain equilibrium with different load masses on a step wheel.
  2. They should measure the force and the length of the load arms of a step wheel, and calculate the products load × load arm ...
...

 
Détails

Numéro d´article: P1001200

Me 3.9 Transmissions à roues dentées et à courroie

Principle

On both a single-stage gear and belt drive, the students should determine the sense of rotation of the driven and the driving wheel as well as the drive ratios. The students should compare the ratios obtained experimentally with the ratios of the number of teeth of the gears and ...

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Détails

Numéro d´article: P1001300

Me 3.12 Puissance

Principle

In this experiment, students investigate the influence of time on power in a simple experiment. To facilitate comparison, work is held constant.

Benefits

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

 
Détails

Numéro d´article: P1001600

Me 4.1 Vases communicants

Principle

Using a flexible U-tube consisting of two glass bells and a piece of tubing, the students should investigate how the water level in the two sides of the U-tube behave when the relative positions of the two tubes are changed.

Benefits

  • Student-suitable experiment descriptions ...
...

 
Détails

Numéro d´article: P1001700

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