Física

 
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Fluorescencia de resonancia de sodio

Principle

Resonance fluorescence is demonstrated by illuminating a sodium vapour with white visible light. The emitted light is spectrally analyzed and shows the emission spectrum of sodium. Therefore the same atomic levels are involved in both absorption and emission.

...
 
Detalles

Num.Producto: P0642600

Combinación sojetiva de colores

Principle

If a circular disc separated into various differently coloured sectors is rotated by a motor so fast that the eye can no longer distinguish the colours, a mixed colour is then perceived. By varying the composition and size of the sectors, it is possible to give the impression of any ...

 
Detalles

Num.Producto: P0872500

Medición de longitudes

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 ...

 
Detalles

Num.Producto: P0998100

Medición de tiempos

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.

The oscillation period of ...

 
Detalles

Num.Producto: P0998200

Determinación de la masa de sólidos y líquidos

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.

Tasks

How does ...

 
Detalles

Num.Producto: P0998300

Determinación del volumen de cuerpos regulares e irregulares

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 ...
 
Detalles

Num.Producto: P0998400

Determinación de la densidad de sólidos

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 ...

 
Detalles

Num.Producto: P0998500

Determinación de la densidad de líquidos

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 ...

 
Detalles

Num.Producto: P0998600

Medición de fuerzas

Principle

The students should become acquainted with the dependence of the reading of spring balances on their orientation and with their adjustment.

With the spring balance adjusted for use in the normal vertical position, the weight F in N of different objects should ...

 
Detalles

Num.Producto: P0998800

Fuerza y fuerza antagonista

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 ...

 
Detalles

Num.Producto: P0998900

Fuerza por peso

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 ...

 
Detalles

Num.Producto: P0999000

Ley de Hooke

Principle

The students should verify the declaration of Hooke's Law, i.e. the proportionality of force and extension within the elasticity range of an elastic body, with measurements on 2 helical springs having different spring constants. These springs will be weighed down with mass ...

 
Detalles

Num.Producto: P0999100

Flexión de una lámina elástica

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 (see also Experiment ME 2.4).
  2. In the course of the same experiment, the (tractive) force should be ...
 
Detalles

Num.Producto: P0999200

Calibración de un dinamómetro

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.

Tasks

How does a spring balance get its ...

 
Detalles

Num.Producto: P0999300

Fuerzas que actúan en el mismo sentido y en sentido opuesto

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) ...

 
Detalles

Num.Producto: P0999400

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