Designated use
This digital laboratory supports two types of experimental assignments for student:
- Same-task assignment for the whole class of students (primarily for 7 to 9 grades)
- Research-type individual tasks for students in 10 and 11 grade
The latter type of assignments build on the earlier acquired knowledge of working with sensors and tables, and require independent planning as well as experimental data processing.
Digital laboratory/ specialization level
this laboratory includes 24 usb compatible digital sensors and other equipment for experimental installations. Manual provides a complete set of instructions and explanation of methodology for the beginner users (basic level) are included as well as descriptions of sample research tasks requiring all sensors. Set-up of actual assignments provides helpful suggestions and tips. Regular updates of accompanying software digital laboratory are freely available through easily accessible website.
The program provides tools for individually planned and executed research, including data filtering and their export to the 3rd party programs such as (ms excel, open office, etc., frame-by-frame video editing allowing for positioning of objects with precise time registration, and putting together electronic reports on experiments supplied with initial data, photo and video records, templates of the tables, graphs and text comments.
Manual also contains 32 detailed, step-by-step scenarios of experiments; another 18 research topics are presented as suggested.
Samples of experiments
- Study of relation between candle power of incandescent lamp and temperature of its tungsten wire
- Study of relation between current-voltage characteristic and light intensity of incandescent lamp and led
- Characteristics of a body movement along inclined plane
- Comparison of emf and internal resistances for various dc sources
- Determining criteria of stable positioning of solid bodies
- Measuring speed of sounds of various frequencies in the air
- Sound waves propagation in a closed space
- Study of liquids phase changes
- Study of magnetic field of permanent magnets
- Study of sources of light in the ac circuit
- Study of ferromagnetic
- Study of radiation pattern of led
- Study of beta particles absorption by allumina
Samples of research assignments and suggested equipment
- What is the speed and wavelength of sound in air? Why loudness of one and the same source of sound depends upon its position within the closed room?
- Sound detector with integration function (100…2000 гц)
- Digital sound sensor (two-channel)
- How does magnetic field of a magnet depend on the distance from that magnet? Describe force between two magnets as related to distance between them.
- Digital dynamometer (+/-20н)
- Digital magnetic field sensor
- How thick a layer of alumina should be to absorb 99% of electromagnetic radiation?
- Sensor of ionizing radiation
- Will the incandescent lamp blink if plugged in ac circuit?
- Silicon sensor of light
- Two-channel oscillographic voltage sensor
- Study of relation between the voltage on the source of light and its luminosity. Source of light: incandescent lamp, led. How does luminosity produced by incandescent lamp depend on the temperature of its glower? How does luminosity produced by a source depend on its spatial positioning? How to build a source of light based on leds?
- Digital voltage sensor (+/- 25b)
- Digital voltage sensor (+/- 250mb)
- Digital electric current sensor (+/- 2,5а)
- Digital electric current sensor (+/- 250mа)
- Light intensity sensor (three band)
- What physical laws can be observed in studying of a flip-over of a solid body? What can be criteria of a stable position of a body?
- Digital dynamometer (+/-20н)
- Digital direction sensor (0…2700 )
- What is relation between energy of intermolecular interaction and gas pressure above surface of liquid on one hand and temperature of boiling of this liquid on the other hand?
- Digital sensor of absolute pressure
- Digital temperature sensor (-20 +110 с)
- Digital temperature sensor (-40 +180 с)
- What is relation between spring tension force and position of a load vertically suspended on that spring? What is the law describing movement of this load?
- Digital dynamometer (+/-20н)
- Digital ultrasound distance sensor
- Acceleration sensor (wireless)