Système d'Expérimentation Élèves TESS

 
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Me 1.1 Mesure de longuers

Principle

The students should measure length, diameter, and hole depth of various objects with a measuring tape and/or vernier caliper as possible. In doing this they should choose and use the more suitable measuring device. The results should be entered in the table as a numerical value ...

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Détails

Numéro d´article: P0998100

Me 1.2 Mesure du temps

Principle

The student should count the oscillations of a pendulum while timing them with the aid of a stopwatch. To determine the dependence of the oscillation period on  the length of the pendulum is shortened by 50% in the second part of the experiment.

Benefits

  • Real stand ...
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Détails

Numéro d´article: P0998200

Me 1.3 Mesure de la masse des solides et liquides

Principle

1. The students should determine the mass of solid bodies with the aid of a balance. 

2. The measurement of the mass of liquids can only be performed using a container. The students should determine the mass from the difference of two measurements.

Benefits

  • Real ...
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Détails

Numéro d´article: P0998300

Me 1.4 Volume des corps réguliers et irréguliers

Principle

The students should determine the volume of 3 solid bodies. In doing this they should know that the cubic meter (m3) is the unit of volume and also that the term liter (l) is very common.

  1. On immersion of a solid body in a graduated cylinder, the difference of the ...
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Détails

Numéro d´article: P0998400

Me 1.5 Mesure de la densité des corps solides

Principle

In the previous experiments on determination of mass and volume (ME 1.3 and ME 1.4), the students have learned that both metal columns have the same volume but different masses. They know that the two objects consist of iron and aluminium. Obviously, the two materials ...

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Détails

Numéro d´article: P0998500

Me 1.6 Meaure de la dénsite des liquides

Principle

In the determination of the density of solids in Experiment ME 1.5, the density was determined as the quotient of mass and volume from a weighing to determine the mass and measurement of volume by different methods. As a prerequisite for this experiment, it was assumed that the ...

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Détails

Numéro d´article: P0998600

Me 2.2 Force et réaction

Principle

1. The students should learn with the help of the spring balance that a force on a body can only be exerted when a counterforce acts on it simultaneously.

2. Using two spring balances, the students should experimentally determine that the forces on both spring balances are ...

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Détails

Numéro d´article: P0998900

Me 2.3 Force dûe à la pesanteur

Principle

The students are to determine the weight which a mass experiences in the earth's gravitational field with a spring balance. They should know that force is measured in N = kg  m∕s2 and recognize that weight is proportional to mass. The proportionality factor is ...

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Détails

Numéro d´article: P0999000

Me 2.5 Flexion d'une lame-ressort

Principle

  1. The students should investigate the behaviour of a leaf spring under load, make a graph of the measuring results and - most importantly - determine the spring constant D.
  2. In the course of the same experiment, the (tractive) force should be determined at different angles for ...
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Détails

Numéro d´article: P0999200

Me 2.6 Calibrage d'un dynamomètre

Principle

The students should add a scale to an uncalibrated spring balance by loading it with mass pieces.

In doing so they should know that a mass of 100 g represents a weight (force) of 1 N in the gravitation field of the earth.

Benefits

  • Student-suitable experiment ...
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Détails

Numéro d´article: P0999300

Me 2.7 Force de directions identiques et opposées

Principle

On the one hand, the students should investigate the effect of two forces acting in the same direction on a mass piece; on the other hand, the effect of two forces acting in opposite directions on it.

From the comparison of the two measured force with the given weight (force) ...

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Détails

Numéro d´article: P0999400

Composition des forces: parallélogramme des forces

Principle

Based on their knowledge of Experiment ME 2.7, the students should determine the direction and magnitude of the resultant force  F which replaces the two different forces  F1  and  F2. Without knowledge of the trigonometric functions, the evaluation ...

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Détails

Numéro d´article: P0999500

Me 2.10 Force appliquées au support d'une poulie

Principle

The students should

  1. With the aid of a pulley deflect a weight (force) and measure the resultant force Fr acting on the mounting of the pulley.
  2. Change the angle α between the weight (force) Fg and the deflected force F1 and once again determine the ...
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Détails

Numéro d´article: P0999700

Me 2.11 Centre de gravité

Principle

  • The students should determine the center of gravity of regulary-shaped objects by balancing them on the point of a pencil.
  • They should determine the center of gravity of an irregulary-shaped object with at least two plumbs from different suspension points.
  • In each case ...
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Détails

Numéro d´article: P0999800

Me 2.12 Stabilité

Principle

By pulling a block at a point above its centre of gravity against an obstacle at its base, the students should observe that an object always tips over when the trace of a plumb through its centre of gravity lies outside its supporting ... ...

 
Détails

Numéro d´article: P0999900

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