Suchergebnis für: ** Zeige Treffer 1 - 10 von 51

Arbeitsblatt

Siemens Stiftung

Bending water (task)

Worksheet:A stream of water is "bent” from its vertical path toward an electrically charged object. What’s the reason for this? A plastic ruler rubbed on wool fabric deflects the stream of water coming from the tap. The photo on the worksheet shows this clearly. The students should conduct this experiment and then explain what forces are at work and how the deflection comes about.Incremental hints for answering this task are available under "Bending water (hints for printing)” or "Bending water (interactive hints)” on the media portal of the Siemens Stiftung. The worksheet includes QR codes for downloading the interactive hints and viewing the solution.Explanations of the experiment for the teacher are found in "Bending water (teacher information).”

Medientypen

Arbeitsblatt

Lernalter

11-15

Schlüsselwörter

Electricity Force Particle Water

Sprachen

Englisch

Experiment

Siemens Stiftung

7. Electronics - 7.3 Transistors (teacher instructions)

Experimentation instructions:Background information on the content and practical information on conducting the "Transistor" experiment.The experiment provides students with the opportunity to learn about transistors which are used in almost every technological device. Transistors are the fundamental components of modern electronics ranging from cooking stoves, car ignitions and household air-conditioners to control systems and airplanes, to name just a few of millions of examples. Transistors have also been central to the development of logical operations and computers. In short: Transistors are key to understanding and working with electronics.One item deals with "Technical application and vocational orientation".Information and ideas:• Particularly in this experiment, we recommend your students to do the additional experiment described in "Doing further research”.• See also the additional Information about LEDs.• There are two basic types of transistors, NPN and PNP. The experiment uses an NPN transistor (negative-positive-negative). NPN- and PNP-transistors have to be inserted differently to function correctly, i.e. to turn the transistors on. NPN- and PNP-transistors look the same. The part number printed on them distinguishes them from regular transistors. For example, a common NPN-transistor has the part number BC 547 or BC 548 printed on the component; a PNP-transistor may have the part number BC 548. If you use regular transistors, you can look up their datasheets online.In contrast to the wiring of a buzzer as in the first experiment, which is an electrical circuit, the transistor circuit is an electronic circuit.The transistor is key to understanding electronics. It is recommend to do the further research with all students, as this will provide additional learning and will reinforce the understanding of a transistor. When conducting both experiments and discussing them, be sure to schedule enough time for your lessons, as 45 minutes will not suffice.

Experiment

Siemens Stiftung

7. Electronics - 7.1 Light dependent resistors (student instructions)

Experimentation instructions:Detailed instructions and questions for students on conducting the experiment "Light dependent resistors”.The questions "What are the properties of a light dependent resistorshall?” shall be answered by experimenting.Information and ideas:One item deals with "Technical application and vocational orientation".

Arbeitsblatt

Siemens Stiftung

A5 How do solar cells connected in series or in parallel behave when shaded? (worksheet 5)

Worksheet for subject teaching in English:
For the student experimentation instructions of the same name. Methodology tool: picture sequence developed by Josef Leisen and Heinz Klippert.

Note: This worksheet has been developed especially for subject teaching in English and for language-sensitive subject teaching. It uses the picture sequence methodology tool developed by Josef Leisen and Heinz Klippert. The picture sequence is used to train students how to correctly comprehend and then explain the chronological and logical sequences of events.
Students whose native language is not English and who do not have strong English skills receive support and training in understanding the technical vocabulary. They work with the specialized vocabulary and in this way acquire the ability to communicate about specific subjects.


Dieses Material ist Teil einer Sammlung

Anderer Ressourcentyp

Siemens Stiftung

A5 Current and voltage with solar cells connected in series and in parallel (worksheet 4 answer sheet)

Answer sheet:
For the worksheet of the same name for subject teaching in English.

You can find more detailed information on the associated worksheet for subject teaching in English "A5 Current and voltage with solar cells connected in series and in parallel (worksheet 4),? which is available on the media portal of the Siemens Stiftung.


Dieses Material ist Teil einer Sammlung

Experiment

Siemens Stiftung

A5 Inclusion: Properties of solar cells (student instructions)

Experimentation instructions:all about solar cells related to the "Experimento - 10+: A5 Properties of solar cells (student instructions)” experiment These student instructions provide experimentation instructions as well as instructions for problem-based development of scientific phenomena.

Anderer Ressourcentyp

Siemens Stiftung

Bending water (teacher information)

Teaching methods: Teaching methods for teachers are given on the worksheet of the same name. The task addresses the dipole properties of water. Basic ideas on particles with a dipole nature should be used in the explanation of the "Bending a stream of water in an electrostatic field” experiment. The students should have prior basic knowledge of electrostatics and the atomic structure of matter. The level of difficulty of the task is medium to high, depending on the extent of the students’ prior knowledge.As background for the task, the teacher information includes an explanation of the dipole properties of water and how they affect, for example, the freezing and boiling points. These properties also influence the behavior of water in the condensed (liquid) phase.The six incremental hints for the task are provided with the corresponding answers. They are also available as a separate ready-to-print medium named "Bending water (hints for printing)” or as an interactive medium named "Bending water (interactive hints)” on the media portal of the Siemens Stiftung.

Anderer Ressourcentyp

Siemens Stiftung

Separating residual waste magnetically

Information sheet:
Magnetic separation and eddy current separation, two magnetic separation procedures for mixtures of materials are compared with each other using the example of sorting residual waste.

The two magnetic separation procedures are used, for example, to sort residual waste. The text provides information about the kinds of materials the respective procedure is suitable for and the physical principle each procedure is based on. Sample applications of these principles that the students are familiar with from class are mentioned. The way the two procedures work is explained and technical implementation for separating residual waste is outlined.

Information and ideas:
The example of sorting residual waste also works well for learning about other physical separation procedures, such as sifting (separation by grain size) and wind sifting (separation by density).


Dieses Material ist Teil einer Sammlung

Experiment

Siemens Stiftung

7. Electronics - 7.2 Capacitors (student instructions)

Experimentation instructions:Detailed instructions and questions for students on conducting the experiment "Capacitors”.The questions "What are the properties of a capacitor?” shall be answered by experimenting.Information and ideas:One item deals with "Technical application and vocational orientation".