Physics teaching demonstration device
A demonstration device and physical technology, applied in the field of teaching demonstration devices, can solve the problems that the students in the back row cannot observe the test phenomenon well, affect the demonstration environment, and unfavorable teacher's operation, so as to facilitate observation, ensure the demonstration environment, and reduce operating costs. effect of difficulty
Inactive Publication Date: 2022-07-08
杨雨轩
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Problems solved by technology
[0004] 1. Most of the existing buoyancy teaching demonstration devices are directly placed on the podium, the position is low, and the students in the back row cannot observe the test phenomenon well; if the demonstration device is raised, it is not conducive to the teacher's operation;
[0005] 2. The existing buoyancy teaching demonstration device needs to pour the liquid in and out during the demonstration, and the liquid is easy to spill, which affects the demonstration environment; while using a water pump to pump and replenish water requires an external power supply, which is inconvenient to operate and has potential safety hazards
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[0024] In order to better understand the above technical solutions, the above technical solutions will be described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0025] like Figure 1-6 A physics teaching demonstration device is shown, including a box body 1, a cover plate 2, a demonstration cylinder 3, a force measuring device 4, a test block 5 and a piston cylinder 6, and the cover plate 2 is reversibly fixed on the box body 1 to demon...
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The invention discloses a physics teaching demonstration device which comprises a box body, a demonstration cylinder, a piston cylinder, a dynamometer and a test block. The interior of the box is divided into a containing cavity and an operation cavity through a partition plate, an opening is formed in the top of the containing cavity, a cover plate is hinged to the opening through a rotating shaft, and a mounting plate is vertically arranged on the lower side of the cover plate. One side of the operation cavity away from the accommodating cavity is provided with an operation port; the demonstration cylinder is a transparent cylinder body with an opening in the upper end, the demonstration cylinder is fixed on the mounting plate, and a first through hole is formed in the bottom of the demonstration cylinder; the piston cylinder is fixed in the operation cavity, a piston is arranged in the piston cylinder in a sliding mode, one end of the piston cylinder is closed, and a second through hole is formed in the closed end of the piston cylinder and communicated with the first through hole through a hose. The demonstration cylinder is installed on the box body in a turnover mode, so that the position of the demonstration cylinder is raised, and observation of all students is facilitated. The water level change in the demonstration cylinder is realized by using the piston, so that the operation difficulty of a teacher is reduced, the demonstration environment is ensured, and the teaching safety is also ensured.
Description
technical field [0001] The invention relates to the technical field of teaching demonstration devices, in particular to a physics teaching demonstration device. Background technique [0002] Physics is a discipline that studies the most general laws of material motion and the basic structure of matter, and is the research basis for other natural science disciplines. Physics is an experimental science, and it is also a science that advocates rationality and values logical reasoning. Buoyancy is one of the important contents of middle school physics curriculum. However, this part of the content is relatively abstract, so it is necessary to use teaching demonstration devices to assist teaching, so as to simplify and visualize some abstract knowledge and principles, and help students deepen their cognition and understanding of knowledge and principles. [0003] However, in the process of realizing the technical solutions invented in the embodiments of the present application...
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IPC IPC(8): G09B23/06
CPCG09B23/06
Inventor 杨雨轩
Owner 杨雨轩