Physics

Students kit Electrical energy sources

Generate and measure electrical energy and understand the relationships

How is electrical energy generated, and how can the resulting voltage be investigated?
With the Students kit Electrical energy sources, students explore these questions independently through hands-on experiments. The materials are easy to use and suitable for grades 5 to 10.

A particularly sensitive voltmeter serves as an indicator of the generated electrical voltage and enables precise measurements during the experiments. This allows students to observe electrical processes directly and develop a clear understanding of the fundamental relationship between current and voltage.

Easy-to-follow experiment instructions support independent experimentation and provide an accessible introduction to the topic of electrical energy. The experiments are designed to be completed within a single lesson, making them easy and flexible to integrate into physics education.

The picture shows a red box equipped with materials for experiments. The items included include a flashlight, batteries, copper wires and various connectors that can be used for school experiments.
The picture shows a red box equipped with materials for experiments. The items included include a flashlight, batteries, copper wires and various connectors that can be used for school experiments.
The picture shows a red suitcase filled with experimental materials on the topic of electrical energy sources. It contains batteries, a solar cell, cables, a measuring device and instructions describing how to use the materials.
The picture shows instructions for an experiment set on the topic of "Electrical energy sources". It contains information on handling and didactic use of the device, which is shown with connecting wires and a small bowl.
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The picture shows an experiment kit with various components, including a transparent tube and copper wire, in a padded compartment. Above it is a document with the Cornelsen logo, which indicates the supplier of the material.
The picture shows an experimental setup with two red cables connected to a power source with a measuring device. In a person's hand is a transparent tube with a copper wire winding, which is part of the experiment.
The image shows an experimental setup where a blue flashlight is pointed at a solar panel connected to red cables. In the middle is a meter for displaying electrical values, visualizing the connection and the functioning of the system.
The picture shows an experiment set with two red cables, a multimeter for measuring voltage and a small plastic bowl equipped with a copper and a metal plate. Next to the set is a small glass of citric acid that can be used for chemical experiments.

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The students observe the relationship between energy supply and current. The experiment makes it clear that the solar cell only converts energy, but does not store it.


The students can be informed that all batteries and accumulators employ similar chemical processes to generate electrical energy for circuits. A battery is said to be “dead” when the chemical reactions in it have ceased, e.g. because the substances arising from these reactions have fully sealed the plate surfaces.


Students should recognize that the nature of this energy conversion is different in principle from the other two types of conversion.


  • 1 × Magnet rod ALCOMAX
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  • 1 × Zinc electrode, angled
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  • 1 ×
  • 2 ×
  • 1 × Copper electrode, angled
  • 1 × Solar cell
  • 1 × Copper wire, varnished, 0,25 mm Ø
  • 2 × Plug lead 25 cm, red
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  • 1 × Plastic tube with 2 rings
  • 1 × °Glass with citric acid
  • 1 × Lidfoam R3, grey 260x200x10 mm
  • 1 × Felt board strips, 10 pcs
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