CN2580537Y - 动量守恒原理演示教具 - Google Patents

动量守恒原理演示教具 Download PDF

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Publication number
CN2580537Y
CN2580537Y CN 02289347 CN02289347U CN2580537Y CN 2580537 Y CN2580537 Y CN 2580537Y CN 02289347 CN02289347 CN 02289347 CN 02289347 U CN02289347 U CN 02289347U CN 2580537 Y CN2580537 Y CN 2580537Y
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conservation
momentum
utility
demonstration teaching
model
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CN 02289347
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金福山
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Abstract

本实用新型公开一种高中物理教学中用的演示教具,它由一个质量较大的铁球和一个具有较长弧形轨道槽的槽体组成,槽体下有可拆卸的轮子,用它可以演示势能与动能的转化;动量守恒;无阻尼振动等教学内容。

Description

动量守恒原理演示教具
技术领域
本实用新型为中学物理教学中演示“动量守恒”原理的教具。
背景技术
人民教育出版社2000年3月第2版高中物理第一册第123页两个小车被线拴在一起,剪断线,小车被它们之间的弹簧弹开,以此说明“动量守恒”原理,两车虽然分开,但仍属一个系统,由于不太直观,学生初学理解上有一些困难,应该有个过渡实验。
发明内容
为直观显示两物体在内力的作用下运动始终处于同一个系统中,本实用新型设计一个弧形轨道槽体,一个铁球能在轨道槽内往复滚动,槽体下有轮子,随着铁球的运动,槽体也向相反方向运动。效果明显、学生容易理解。同时此教具还可做其它演示。
附图说明
附图是整个装置的立体示意图。
具体实施方式
有弧形轨道的槽体1,金属球2沿着轨道运动,槽体带动轮子3反向运动,电磁铁4吸引铁球增加高度,为使演示效果明显,运动慢些,轨道槽尽量长,铁球质量尽量大,轮子可以直接摘下来,无轮子的槽体放在粗糙平面上,铁球滚下时槽体不动,演示铁球势能和动能的转化;适时控制电磁铁中电流的通断可以使铁球持续的往复运动,说明无阻尼振动原理。

Claims (1)

1、一种动量守恒原理演示教具,包括两个相对运动的物体,其特征在于,一个质量较大的铁球和一个具有较长弧形轨道槽的槽体,槽体下安有可拆卸的轮子。
CN 02289347 2002-11-29 2002-11-29 动量守恒原理演示教具 Expired - Fee Related CN2580537Y (zh)

Priority Applications (1)

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CN 02289347 CN2580537Y (zh) 2002-11-29 2002-11-29 动量守恒原理演示教具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02289347 CN2580537Y (zh) 2002-11-29 2002-11-29 动量守恒原理演示教具

Publications (1)

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CN2580537Y true CN2580537Y (zh) 2003-10-15

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CN 02289347 Expired - Fee Related CN2580537Y (zh) 2002-11-29 2002-11-29 动量守恒原理演示教具

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CN (1) CN2580537Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104575183A (zh) * 2014-12-18 2015-04-29 王辉 一种验证动量守恒定律的实验装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104575183A (zh) * 2014-12-18 2015-04-29 王辉 一种验证动量守恒定律的实验装置

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