CN201054197Y

CN201054197Y - Flexible collision demonstration device

Info

Publication number: CN201054197Y
Application number: CNU2007201230237U
Authority: CN
Inventors: 杨再华; 吴畏; 易腾; 蔡铎; 段小婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-11
Filing date: 2007-06-11
Publication date: 2008-04-30
Anticipated expiration: 2017-06-11

Abstract

The utility model discloses an elastic collision demonstration device, which belongs to a teaching aid; the utility model aims at providing a device which can visually, visibly, and interestingly demonstrate the elastic collision process and the interconversion between the kinetic energy and the potential energy. The utility model comprises collision balls; a plurality of collision balls (2) with masses in equality ratio are vertically suspended on a supporting bracket through a twine (1) from large mass to small mass, and the center of each collision ball (2) is positioned on a same level line. The utility model can visually, visibly, and interestingly demonstrate the entire process of the elastic collision and the energy conversion, the relative knowledge can be well mastered by the students through interesting experiments, therefore, the purpose of improving teaching quality and popularizing scientific popular knowledge can be realized; the utility model is an ideal physics teaching device.

Description

The elastic collision apparatus for demonstrating

Technical field:

The utility model relates to a kind of physics teaching or science popularization apparatus for demonstrating, relates in particular to a kind of device of demonstrating elastic collision.

Background technology:

Elastic collision and kinetic energy, potential energy converting and energy are important contents in physics teaching in secondary school or the Popular Science Education, how image, reflect that above-mentioned the principles of science is the technical matters that current physics teaching or Popular Science Education should solve intuitively, enjoyably.At present, also do not demonstrate the device of above-mentioned physical phenomenon in physics teaching, the student can only be familiar with, understand by bookish figure and literal, and is more abstract and dull, understands not deeply, is unfavorable for the raising of quality of instruction.

Summary of the invention:

At the above-mentioned defective that exists in the prior art, the utility model aims to provide a kind of elastic collision apparatus for demonstrating, and this device can be demonstrated the elastic collision process vivid, intuitively, vividly, enjoyably, also can demonstrate the ultimate principle of kinetic energy, potential energy converting and energy simultaneously.

To achieve these goals, the utility model by the following technical solutions: it comprises the collision ball; A plurality of collision balls that quality becomes geometric ratio relation are hung vertically on the support by cord according to order from big to small, and each collides on same horizontal line of being centered close to of ball.

Compared with the prior art, the utility model is owing to utilized a plurality of quality to become the rigid ball of equal proportion relation as the collision ball, therefore the collision ball that quality is the lightest when bumping can outwards fly out and rises to a higher height with fast speeds, make the student can intuitively, vividly, clearly observe the whole process of elastic collision and energy conversion, thereby play deepen the impression, the purpose of profound lesson, help that quality of instruction improves and the popularization of popular science knowledge.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Among the figure: cord 1 collision ball 2

Embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:

In Fig. 1, a plurality of collision balls 2 that quality becomes geometric ratio relation are hung vertically on the support by cord 1 according to putting in order from big to small, and each collides that ball 2 is in contact with one another and being centered close on same the horizontal line of each ball.

During demonstration, the collision ball 2 of quality maximum falls other collision ball 2 of bump at the arc track in the effect lower edge of gravity and cord 1, so the lightest collision ball 2 of quality just can fly out to the right and rises to a higher position with fast speeds; Whole collision process not only intuitively vividly, but also very interesting.Since the utility model not only can reflect elastic collision essence, can also reflect the ultimate principle that kinetic energy potential energy is changed mutually, so it can help the student to be familiar with, to understand wherein the principles of science better, the grasp relevant knowledge helps improving the quality of teaching.

Claims

1. an elastic collision apparatus for demonstrating comprises the collision ball; It is characterized in that: a plurality of collision balls (2) that quality becomes geometric ratio relation are hung vertically on the support by cord (1) according to order from big to small, and each collides being centered close on same the horizontal line of ball (2).