Gravity direction demonstration instrument for physics teaching

Abstract

The utility model relates to the technical field of gravity direction demonstration instruments, and discloses a gravity direction demonstration instrument for physics teaching, which comprises a demonstration instrument, the demonstration instrument is an acrylic plate, the demonstration instrument is a circular transparent acrylic plate with the diameter of 50cm and the thickness of 50cm, the inside of the demonstration instrument is hollow, and a plumb line hook is fixedly mounted on the front surface of the demonstration instrument. Through the arrangement of the demonstration instrument, when the demonstration instrument is used, the diameter of the demonstration instrument is 50cm, and the demonstration instrument is larger than the size of an existing device, so that students in the last row of a classroom can clearly observe experiment phenomena, and through the cooperative arrangement of the powerful magnet patches and the demonstration instrument, the powerful magnet patches are fixed on the back surface of the demonstration instrument when the demonstration instrument is used. And the demonstration instrument is attracted on the blackboard through the powerful magnet patches, so that the device is integrally formed, occupies a small area, does not need a large table top for placing the instrument, liberates both hands of a teacher, is convenient to operate, and can be well applied to demonstration experiment teaching.

Description

Technical Field

[0001] This utility model relates to the technical field of gravity direction demonstration devices, specifically a gravity direction demonstration device for physics teaching. Background Technology

[0002] In teaching the concept of the direction of gravity in junior high school, students need to correctly understand the concept of "vertically downward". "Vertical" is a concept that students are encountering for the first time and should be emphasized. Students have previously learned "perpendicular", and many students confuse "vertically downward" with "perpendicular downward". Therefore, "the direction of gravity" is a difficult point to teach. This utility model provides a gravity direction demonstration device for physics teaching to improve the technology of gravity direction demonstration devices.

[0003] Existing gravity direction demonstrators are too small, making it difficult for students in the back rows to see clearly. They cannot be attached to the blackboard and must be placed on a stand for the teacher to hold with both hands, preventing them from using their hands. They also occupy a large area, hindering their application in demonstration experiments. Furthermore, students can only observe the horizontal plane, not the ground surface, leading to confusion about verticality. The angle between the demonstrator and the ground cannot be adjusted from 0-90 degrees, making it impossible to demonstrate the direction of gravity under various conditions, resulting in less rigorous conclusions. Finally, the lack of markings on the demonstrator's surface prevents students from immediately measuring the angle of inclination. Therefore, this invention provides a gravity direction demonstrator for physics teaching. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a gravity direction demonstration device for physics teaching, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a gravity direction demonstration device for physics teaching, comprising a demonstration device, wherein the demonstration device is an acrylic plate, the demonstration device being a circular transparent acrylic plate with a diameter of 50cm and a thickness of 50cm, and the interior being hollow, and a plumb line hook is fixedly installed on the front of the demonstration device, and a connecting ring is placed on the surface of the plumb line hook.

[0008] Preferably, a counterweight line is fixedly installed at the bottom end of the connecting ring, and a vertical cone is fixedly installed at the end of the counterweight line away from the connecting ring.

[0009] Preferably, a horizontal plane is fixedly installed on the side of the plumb line hook away from the demonstrator, and the horizontal plane divides the upper half into equal parts marked with angles.

[0010] Preferably, a horizontal line is provided on one side of the horizontal plane, and a water inlet is provided at the top of the demonstrator.

[0011] Preferably, the bottom of the demonstrator is attached to a floor panel with an oil-based adhesive, and the floor panel is 50cm long.

[0012] Preferably, a plurality of strong magnetic patches are fixedly installed on the end of the demonstrator that is away from the horizontal plane, and the strong magnetic patches are all distributed on the back of the demonstrator.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a gravity direction demonstration device for physics teaching, which has the following beneficial effects:

[0015] 1. This utility model, through the setting of the demonstration device, has a diameter of 50cm, which is larger than the size of existing devices, thus enabling students in the last row of the classroom to clearly observe the experimental phenomena.

[0016] 2. This utility model uses a combination of strong magnetic patches and a demonstrator. In use, multiple strong magnetic patches are fixed to the back of the demonstrator, and then the demonstrator is attracted to the blackboard by the strong magnetic patches. The device is integrally formed, occupies a small area, does not require a large table to place the instrument, frees up the teacher's hands, is easy to operate, and can be well applied to demonstration experiment teaching.

[0017] 3. This utility model, through the combination of a horizontal plane and a ground panel, allows students to intuitively see the relationship between the ground panel and the horizontal plane, thus better presenting the vertical and perpendicular relationship between the two and overcoming the difficulty that students easily confuse the two in teaching.

[0018] 4. This utility model, through the setting of a strong magnetic patch, allows the demonstrator to be attached to the blackboard during use. Then, the teacher places both hands on either side of the demonstrator and pushes it to rotate, thereby achieving a ground tilt angle that can be adjusted from 0 to 90 degrees. This allows for the demonstration of the direction of gravity under any circumstances, making the conclusions more universal and rigorous.

[0019] 5. This utility model, through the setting of a horizontal plane, has scales on its surface, which allows students to directly measure the inclination angle of the inclined plane. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the back of the structure of this utility model;

[0022] Figure 3 This is a schematic diagram showing the structural breakdown of this utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure between the plumb line hook and the vertical cone of this utility model.

[0024] In the diagram: 1. Demonstration device; 2. Plumb line hook; 3. Connecting ring; 4. Plumb line; 5. Vertical cone; 6. Horizontal plane; 7. Horizontal line; 8. Water inlet tank; 9. Floor panel; 10. Strong magnetic patch. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Please see Figure 1-2 This utility model provides a technical solution: a gravity direction demonstration device for physics teaching, including a demonstration device 1. The demonstration device 1 is an acrylic plate, which is a circular transparent acrylic plate with a diameter of 50cm and a thickness of 1cm. The interior is hollow. A plumb line hook 2 is fixedly installed on the front of the demonstration device 1. A connecting ring 3 is placed on the surface of the plumb line hook 2. A plumb line 4 is fixedly installed at the bottom of the connecting ring 3. A vertical cone 5 is fixedly installed at the end of the plumb line 4 away from the connecting ring 3. A horizontal plane 6 is fixedly installed on the side of the plumb line hook 2 away from the demonstration device 1. The horizontal plane 6 divides the upper half into 180-degree segments and marks the angle.

[0028] In this embodiment, the demonstrator 1 is set up with a diameter of 50cm, which is larger than the size of existing devices. This allows students in the last row of the classroom to clearly observe the experimental phenomena. The combination of the horizontal plane 6 and the ground panel 9 allows students to intuitively view the horizontal plane 9 and the horizontal plane 6, thus better demonstrating the vertical and perpendicular relationship between the two and overcoming the difficulty of students easily confusing the two in teaching. The horizontal plane 6 is set with scales, allowing students to directly measure the inclination angle of the inclined plane.

[0029] Example 2

[0030] like Figure 3-4As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes that a horizontal line 7 is provided on one side of the horizontal plane 6, a water inlet 8 is provided at the top of the demonstrator 1, a ground panel 9 is attached to the bottom of the demonstrator 1 with oil-based adhesive, the ground panel 9 is 50cm long, and a number of strong magnetic patches 10 are fixedly installed on the end of the demonstrator 1 away from the horizontal plane 6, and the strong magnetic patches 10 are all distributed on the back of the demonstrator 1.

[0031] In this embodiment, through the combined arrangement of the strong magnetic patches 10 and the demonstrator 1, multiple strong magnetic patches 10 are fixed to the back of the demonstrator 1 during use, and then the demonstrator 1 is attracted to the blackboard by the strong magnetic patches 10. This makes the device integrally formed, with a small footprint, eliminating the need for a large table for placing the instrument, freeing up the teacher's hands, and facilitating operation. It can be well applied to demonstration experiments and teaching. With the strong magnetic patches 10, the demonstrator 1 is attracted to the blackboard by the strong magnetic patches 10 during use. Then, the teacher places their hands on both sides of the demonstrator and pushes and rotates the demonstrator 1 with both hands, thereby achieving a ground tilt angle that can be adjusted from 0 to 90 degrees. It can demonstrate the direction of gravity under any circumstances, making the conclusions more universal and rigorous.

[0032] In summary, this gravity direction demonstrator for physics teaching is designed so that red ink is poured into the demonstrator 1 through the water inlet 8, and then the base panel 9 is pasted onto the bottom of the demonstrator 1. Subsequently, the demonstrator 1 is attached to the blackboard by a strong magnetic patch 10, making it a one-piece unit. It does not require a large table for placing the instrument, which is convenient for operation. Students can directly observe the relationship between the base panel 9 and the horizontal plane 6, which better presents the vertical and perpendicular relationship.

[0033] When the demonstrator 1 is attached to the blackboard, the teacher can manually push and rotate it to adjust the ground tilt angle from 0 to 90 degrees, demonstrating the direction of gravity under any circumstances. The surface of the horizontal plane 6 is marked with scales, allowing students to directly measure the tilt angle of the inclined plane. The demonstrator 1 has a diameter of 50cm, which is larger than existing devices, making it easier for students to observe.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gravity direction demonstration device for physics teaching, comprising a demonstration device (1), characterized in that: The demonstration device (1) is an acrylic sheet. The demonstration device (1) is a circular transparent acrylic sheet with a diameter of 50cm and a thickness of 1cm. The inside is hollow. A plumb line hook (2) is fixedly installed on the front of the demonstration device (1). A connecting ring (3) is placed on the surface of the plumb line hook (2).

2. The gravity direction demonstration device for physics teaching according to claim 1, characterized in that: A counterweight line (4) is fixedly installed at the bottom end of the connecting ring (3), and a vertical cone (5) is fixedly installed at the end of the counterweight line (4) away from the connecting ring (3).

3. The gravity direction demonstration device for physics teaching according to claim 1, characterized in that: A horizontal plane (6) is fixedly installed on the side of the plumb line hook (2) away from the demonstrator (1), and the horizontal plane (6) divides the upper half into 180 equal parts marked angles.

4. A gravity direction demonstration device for physics teaching according to claim 3, characterized in that: A horizontal line (7) is provided on one side of the horizontal plane (6), and a water inlet trough (8) is provided at the top of the demonstration instrument (1).

5. A gravity direction demonstration device for physics teaching according to claim 1, characterized in that: The bottom of the demonstration device (1) is attached to a floor panel (9) with an oil-based adhesive, and the floor panel (9) is 50cm long.

6. A gravity direction demonstration device for physics teaching according to claim 1, characterized in that: Multiple strong magnetic patches (10) are fixedly installed on one end of the demonstrator (1) away from the horizontal plane (6), and the strong magnetic patches (10) are all distributed on the back of the demonstrator (1).

Images