Demonstration set on the dynamics of rotational motion
- Recommended age: from 12 years
- Recommended quantity per cabinet: 1 thing
- Recommended level of education:
- — Basic general education (5-9 grades)
- — Secondary general (grades 10 and 11)
- — Additional education
- Important: The product is included in the register of industrial products manufactured in the territory of the Russian Federation, the registry entry number is 10332741
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Software for conducting demonstration experiments: "Digital Lab - Demo". Included in the register of Russian software of the Ministry of Digital Development, Communications and Mass Media of the Russian Federation #20573 from 14.12.2023.
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Software for carrying out computational modeling: "Interactive digital laboratory". Included in the register of Russian software of the Ministry of Digital Development, Communications and Mass Media of the Russian Federation #5603 from 26.07.2019.
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Included in the list of educational equipment for equipping and modernizing schools (Order No. 838 of the Ministry of Education of the Russian Federation dated November 28.11.2024, XNUMX)
- The computer is not included in the package!
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Note: To operate the drive, an additional power source with a voltage of at least 15V is required, for example, a 24V adjustable power supply with a load current of up to 10A.
Purpose
The demonstration kit is intended for conducting demonstration experiments and numerical modeling to study rotational motion.
What will the child learn?
The demonstration set allows you to perform 10 experiments on rotational and oscillatory motion, inertial reference systems, centripetal acceleration, rotation of a rigid body with constant acceleration, and also to conduct computational modeling of the behavior of a liquid in a rotating vessel.
Updates
Allows you to teach the main stages of conducting experimental research, and also allows you to conduct joint research with students.
The experimental setups are assembled on the basis of a vertical frame mounted on a rotation drive with a built-in angular velocity sensor.
— Drive unit with electric motor and massive base on adjustable supports
— Digital angular velocity sensor (measurement range from 0,3 to 25 rad/s)
— Frame made of aluminum profile
— Suspension with a load of 0,2 kg (2 pieces)
— Suspension with a load of 0,4 kg
- Signaling device
- Ball trap
— Steel ball (3 pieces)
- Ball with thread and holder
- Cuvette with clamps
- Curved tube with a funnel
— Spring with lock
- Wire staples (3 pieces)
— Fixed block on an angle bracket
- Thread
— Load weighing 0,1 kg (2 pieces)
— Dynamometer 5 N
— Methodological support
— Software for conducting demonstration experiments
— Software for conducting computational modeling
- Package
Methodological support
The demonstration kit has a methodological guide, which contains instructions for performing 10 experiments on the assembled installations.
The description of the experiments is accompanied by a photograph of the setup and screenshots of the software, showing what results the teacher will obtain during the demonstration.
Software for conducting demonstration experiments
The software for conducting demonstration experiments provides:
— Selection of units of measurement (angular velocity — rad/s or rotation frequency — rev/s)
— Selection of the time interval between successively obtained values of the measured parameter
— Presentation of data as a function of angular velocity (rotation frequency) over time.
The software for conducting experiments contains scenarios of experiments including optimal settings of the sensors used for conducting the experiment. In addition, one scenario allows working with the program for modeling the behavior of a liquid in a rotating vessel.
Scenarios allow you to complete all stages of scientific research of a phenomenon: demonstrate qualitative patterns of the observed phenomenon (faster - slower, growing - decreasing - does not depend), conduct quantitative studies with measurement of quantities.
Software for conducting computational modeling
The software provides for the calculation modeling of the behavior of a liquid in a rotating vessel and allows you to set the dimensions (height and radius) of the rotating vessel, as well as the angular velocity of rotation. The calculation results are presented graphically as a section of the liquid surface by a plane passing through the axis of rotation, as well as in the form of 3D animation showing the change in the shape of the liquid surface with a decrease or increase in the rotation frequency.
List of topics, demonstrations and research conducted:
— Newton's second law for uniform circular rotation
— Conical pendulum
— Rotation of a system of connected bodies
— Modeling of Stern's experiment
— Foucault pendulum model
— Rotation of liquid
— Doppler effect for sound wave
— Forced mechanical vibrations and resonance
— The concept of moment of inertia
— Measuring the moment of inertia of a complex-shaped body