An elastic collision demonstration device for physics teaching
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A technology of elastic collision and demonstration device, which is applied in the field of teaching, can solve problems such as difficult teaching effects, and achieve the effects of being suitable for promotion and use, convenient for placement, and easy for observation
Active Publication Date: 2020-09-04
烟台华腾技术有限公司
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In daily life, when hard wooden balls or steel balls collide, the loss of kinetic energy is very small and can be ignored. Usually, their collisions can also be regarded as elastic collisions. In physics teaching, energy conversion such as potential energy conversion of objects is involved Kinetic energy and spheres are converted into energy after elastic collision. Since energy is not a kind of thing that can be seen directly by the naked eye, it is relatively abstract. It is difficult to achieve a good teaching effect by simply citing laws and theories for teaching.
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[0019] like Figure 1-2 As shown, this specific embodiment adopts the following technical solutions: an elastic collision demonstration device for physics teaching, including a column 1, a spindle 2 is fixedly inserted at the top of the column 1, and one end of the spindle 2 passes through the column 1. The boom bearing sleeve 3 is nested movable, and the boom bearing sleeve 3 is fixedly connected with the boom 20, and the bottom of the boom 20 is fixed with a collision ball 4, and the two sides of the boom bearing sleeve 3 A rod bearing sleeve 5 is movably nested on the main shaft 2, and the rod bearing sleeve 5 is fixedly connected with a reaction rod body 6. There are two reaction rod bodies 6, and one of the reaction rod bodies 6 The bottom end of the reaction rod body 6 is movably nested with a sleeve 7, the sleeve 7 is fixedly installed on both ends of the bayonet of the limiting concave ring 8, and the concave surface of the limiting concave ring 8 is fixedly installed ...
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Abstract
The invention discloses an elastic collision demonstration device for physics teaching. The device comprises a column, a main shaft, a suspender bearing sleeve, a collision ball body, a rod bearing sleeve, a reaction rod body, a sleeve, a limit concave ring, a spring washer, a connecting piece, a tie bar, a reset spring, a mounting frame, a locking piece, a fixing clamping member, an upper end plate, a lower end plate, a locking bolt, a clamping groove and a suspender. The device is advantaged in that the device is convenient to use, is convenient to carry and is quite convenient to observe, determinants of the rotational inertia and influence on rotation of a rigid body can be directly shown through demonstration, angular momentum and rotational kinetic energy are indirectly reflected, the conservation law is verified, these concepts are gradually clarified, the relevant laws are correctly understood, phenomena are obvious, conclusion is intuitive, students are facilitated to think independently, the learning atmosphere is lively and lively, moreover, the device is simple and convenient to install, the device can be simply fixed at an edge of a table, the area of an experimental bench is greatly reduced, and other experimental items are convenient to dispose.
Description
Technical field: [0001] The invention relates to the field of teaching technology, in particular to an elastic collision demonstration device for physics teaching. Background technique: [0002] In an ideal situation, after an object collides, the deformation can recover without heat generation, sound generation, and no kinetic energy loss. This kind of collision is called elastic collision, also known as completely elastic collision. The real elastic collision is only in molecules, atoms and smaller particles. appear in between. In daily life, when hard wooden balls or steel balls collide, the loss of kinetic energy is very small and can be ignored. Usually, their collisions can also be regarded as elastic collisions. In physics teaching, energy conversion such as potential energy conversion of objects is involved Kinetic energy and the conversion of energy after elastic collision of spheres, because energy is not a kind of thing that can be seen intuitively by the naked e...
Claims
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