Curvilinear motion condition tester
By designing a curved motion condition experiment device and controlling the initial velocity and gravity of the magnetic sphere, the problem of difficult-to-control variables in high school physics experiments was solved, the repeatability and observability of the experiment were achieved, and students were helped to understand the qualitative laws of curved motion.
Patent Information
- Application Number
- CN202422171753.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-09-04
AI Technical Summary
It is difficult to control variables in existing high school physics experiments, resulting in poor experimental repeatability and making it difficult for students to understand the qualitative laws of curvilinear motion.
A curvilinear motion condition experiment device was designed, which included a plate, a magnetic ball, a release device, a magnet, a slide rail, a clamp, a laser, and an adjustment pad. By controlling the initial velocity, gravity, and direction of the initial velocity of the magnetic ball, the variables could be controlled.
It improves the repeatability and controllability of the experiment, allowing students to intuitively observe the relationship between variables and derive qualitative laws of resultant force and velocity direction.
Smart Images
Figure CN223390204U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of teaching tools, and in particular to a curve motion condition experiment device. Background Art
[0002] The curvilinear motion chapter in the second required high school physics course requires an experiment to explore the conditions for curvilinear motion. The goal is to demonstrate that an object exhibits curvilinear motion when the direction of the net force acting on it is not aligned with the direction of its velocity. The textbook describes the experiment as follows: a steel ball is moving in a straight line on a horizontal plane. A magnet is placed adjacent to the ball's path, and the ball's motion is observed. The experiment involves variables such as the ball's initial velocity, its direction, its gravity, and the magnitude and direction of the magnetic attraction. To ensure reproducibility, the experiment requires controlling the other variables, varying only one to observe whether and how that variable affects the ball's linear motion.
[0003] In actual teaching, teachers often push a steel ball on the podium and randomly move a magnet close to it during its motion. While this allows for the observation of the ball's curved motion, it's difficult to achieve the qualitative relationship between the net force and velocity direction required in high school textbook experiments. For example, it's difficult for teachers to maintain a consistent initial velocity across multiple instances of the ball's motion, making it difficult to intuitively demonstrate the changes in the magnitude and direction of the magnet's attractive force. Utility Model Content
[0004] The technical problem to be solved by this utility model is that overly simple experimental designs make it difficult to control the variables in the experiment, resulting in poor experimental repeatability, making it difficult for students to understand the experimental purpose and even more difficult to draw general and qualitative conclusions. To this end, this application provides a curved motion condition experiment device that can control the initial velocity and direction of a steel ball when it is released onto a plane, and systematically change the gravity and magnetic attraction force on the steel ball.
[0005] In order to solve the above technical problems, the utility model provides a curved motion condition experiment device, which includes a flat plate and a magnetic ball moving on the flat plate. A release device that can release the magnetic ball to the flat plate is provided on one side of the flat plate, and a detachable magnet is provided on the flat plate.
[0006] Furthermore, the releasing device is a slide rail inclined to the flat plate, and a clip that can move along the slide rail is provided on the slide rail.
[0007] Furthermore, the releasing device is detachably mounted on the flat plate, and the releasing device can be rotated at a certain angle to release the magnetic ball onto the flat plate.
[0008] Furthermore, a hole is provided on the slide rail, a laser is provided behind the hole, and a scale is provided on the flat plate.
[0009] Furthermore, magnetic balls of different sizes are also included.
[0010] Furthermore, grooves are provided around the plate to recycle and accommodate the magnetic balls.
[0011] Furthermore, the flat plate is provided with an embedding groove for limiting the movement of the magnetic ball.
[0012] Furthermore, it also includes four adjustment pads arranged around the bottom surface of the tablet for adjusting balance.
[0013] Furthermore, it also includes a detachable bracket, and a magnetic ball is hung at the front end of the bracket.
[0014] In summary, the beneficial effects of this utility model are as follows: by releasing the magnetic ball from the clamp at different heights on the slide rail, the initial velocity of the magnetic ball upon entering the flat surface can be controlled; by repeating the experiment with magnetic balls of different sizes (masses), the magnitude of the gravitational force on the magnetic ball can be controlled; and by rotating the angle of the slide rail, the direction of the initial velocity of the magnetic ball upon entering the flat surface can be controlled. This allows each variable involved in the experiment to be controlled separately, making the experiment highly repeatable. Students can more intuitively observe the relationship between experimental variables, thereby drawing generalized, qualitative conclusions, and achieving the purpose of this experiment to explore the qualitative laws between the net force and the direction of velocity. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of this application.
[0016] Figure 2 This is a partially enlarged schematic diagram of this application.
[0017] Figure 3 This is a schematic diagram of the structure of the bracket of this application.
[0018] Explanation of the accompanying reference numerals: 1. Flat plate; 11. Scale; 12. Groove; 13. Groove; 2. Magnetic ball; 3. Release device; 31. Slide rail; 32. Clip; 33. Hole; 34. Laser; 4. Magnet; 5. Adjustment pad; 6. Bracket. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the description cannot fully illustrate all implementation schemes. The following embodiments are only part of many implementation schemes, not all implementation schemes. Based on the disclosure of the present invention, all other implementation results obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.
[0020] Example
[0021] like Figure 1As shown, a curvilinear motion condition experiment device includes a flat plate 1 and a magnetic ball 2 moving on the flat plate 1. A release mechanism 3 is provided on one side of the flat plate 1 to release the magnetic ball 2 onto the flat plate 1. A detachable magnet 4 is also provided on the flat plate 1. Without the magnet 4 attached to the flat plate 1, the magnetic ball 2 slides down the release mechanism 3 and then moves linearly on the flat plate. With other conditions remaining unchanged, after the magnet 4 is attached, the effect of the magnet 4 on the movement of the magnetic ball 2 can be observed.
[0022] like Figure 2 As shown, the release device 3 is a slide rail 31 tilted toward the flat plate 1. A clamp 32 is mounted on the slide rail 31 and can move along the rail. The magnetic ball 2 can roll freely along the rail 31. Pressing the handle of the clamp 32 releases the magnetic ball 2. By adjusting the height of the clamp 32 on the rail 31, the initial velocity of the magnetic ball 2 upon entering the flat plate 1 can be controlled.
[0023] like Figure 1 As shown, the release device 3 is detachably mounted on the flat plate 1, and the release device 3 can release the magnetic ball 2 onto the flat plate 1 at a rotating angle. The angle of the slide rail of the release device 3 is continuously adjustable on the flat plate 1, so that the release angle of the magnetic ball 2 is continuously adjustable, that is, the initial velocity direction of the magnetic ball 2 can be changed in a controllable manner.
[0024] like Figure 2 As shown, a hole 33 is provided on the slide rail 31, a laser 34 is provided behind the hole 33, and a scale 11 is provided on the plate 1. The laser 34 emits a laser from the hole 33 to aim at the scale 11, so as to adjust the initial velocity direction of the magnetic ball 2 more accurately.
[0025] It also includes magnetic balls 2 of different sizes, which makes it easy to explore the effects of different gravity (different resultant forces) on the motion curve of the magnetic balls.
[0026] like Figure 1 As shown, the tablet 1 is further provided with an embedding groove 12 for limiting the movement of the magnetic ball 2. The embedding groove 12 corresponds to the limit to accommodate magnetic balls 2 of different sizes, making it convenient to store teaching aids and not easy to scatter.
[0027] like Figure 1 As shown, grooves 13 are provided around the plate 1 for recovering and accommodating the magnetic balls 2, so as to facilitate the recovery of the magnetic balls 2 that have fallen from the track and performed various movements on the plate, so that they are not likely to fly out of the plate 1 and fall, causing shape changes, uneven force and movement, adding variables to the experiment, and making it difficult to observe.
[0028] like Figure 1As shown, four adjustment pads 5 for adjusting the balance are provided around the bottom surface of the tablet 1, which facilitates the adjustment of the horizontal position of the tablet 1 to avoid an uneven desktop, which causes the magnetic attraction and movement direction of the magnetic ball 2 to be not in the same plane, thereby adding new variables and making it difficult to derive an accurate rule.
[0029] like Figure 3 As shown, it also includes a detachable bracket 6, and a magnetic ball 2 is suspended at the front end of the bracket 6. The magnetic ball 2 can be observed to perform three-dimensional curved motion in a three-dimensional magnetic field, which can stimulate students' thinking and enable them to further think about curved motion.
[0030] The above describes the embodiments of the present invention in detail in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by ordinary technicians in the relevant technical field, equivalent changes to the structure, shape and principle fall within the scope of protection of the present invention.
Claims
1. A curvilinear motion condition experiment device, comprising a flat plate (1) and a magnetic sphere (2) moving on the flat plate (1), characterized in that: A release device (3) capable of releasing the magnetic ball (2) onto the flat plate (1) is provided on one side of the flat plate (1), and a detachable magnet (4) is provided on the flat plate (1); the release device (3) is a slide rail (31) inclined toward the flat plate (1), and a clip (32) capable of moving along the slide rail (31) is provided on the slide rail (31).
2. The curvilinear motion condition experiment device according to claim 1, characterized in that: The releasing device (3) is detachably mounted on the flat plate (1), and the releasing device (3) can release the magnetic ball (2) onto the flat plate (1) at a rotating angle.
3. The curvilinear motion condition experiment device according to claim 1, characterized in that: The slide rail (31) is provided with a hole (33), a laser (34) is provided behind the hole (33), and a scale (11) is provided on the flat plate (1).
4. The curvilinear motion condition experiment device according to claim 1, characterized in that: Also included are magnetic balls (2) of different sizes.
5. The curvilinear motion condition experiment device according to claim 1, characterized in that: The flat plate (1) is also provided with an embedding groove (12) for limiting the movement of the magnetic ball (2).
6. The curvilinear motion condition experiment device according to claim 1 or 5, characterized in that: The plate (1) is provided with grooves (13) around its periphery for recovering and accommodating the magnetic balls (2).
7. The curvilinear motion condition experiment device according to claim 1, characterized in that: It also includes four adjustment pads (5) arranged around the bottom surface of the flat plate (1) for adjusting balance.
8. The curvilinear motion condition experiment device according to claim 1, characterized in that: It also includes a detachable bracket (6), with a magnetic ball (2) suspended at the front end of the bracket (6).