CN106097840A - 一种有孔穿线的石块木块铝块铜块蜡块 - Google Patents

一种有孔穿线的石块木块铝块铜块蜡块 Download PDF

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CN106097840A
CN106097840A CN201610541540.XA CN201610541540A CN106097840A CN 106097840 A CN106097840 A CN 106097840A CN 201610541540 A CN201610541540 A CN 201610541540A CN 106097840 A CN106097840 A CN 106097840A
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刘绍家
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Abstract

初中物理《密度》的教学中，测量石块、木块、铝块、铜块、蜡块的密度，一是需要老师去寻找、制作合适的石块和木块；二是要在石块、木块、铝块、铜块、蜡块上系细线，便于将它们放入量筒中测体积后取出来，由于它们横着的长度大于量筒的内径或与量筒的内径差不多，往往取出来时会卡在量筒里取不出来。本发明的有益效果在于：①、免去了教师寻找、制作合适石块和木块的烦恼。②、由于打结后的细线穿过石块、木块、铝块、铜块、蜡块的细端中间，将它们放入量筒中测体积后，提起细线就能将它们竖着提取出来，不会卡在量筒中。③、由于石块、木块、铝块、铜块、蜡块可以做成长形状，就保证了可以根据测量密度的需要制成适宜的体积。

Description

一种有孔穿线的石块木块铝块铜块蜡块
【技术领域】
本发明涉及一种器材，尤其涉及一种教学器材。
【背景技术】
初中物理教材中，《密度》一章是教学重点。密度的教学，必须做好演示实验和学生实验：测量物质的密度。测石块、木块、铝块、铜块、蜡块的密度，有两个问题：一是现物理实验室一般没有石块和木块，需要老师费时费神去寻找和制作合适的石块和木块；二是为了便于放入量筒中测体积，要在石块、木块、铝块、铜块、蜡块上系细线，将它们放入量筒中测体积后，提起细线将它们取出来，由于它们横着的长度大于量筒的内径或与量筒的内径差不多，往往取出来并不顺利，经常会出现卡在量筒里取不出来的情况，令人烦恼。
【发明内容】
本发明的目的在于解决测石块、木块、铝块、铜块、蜡块的密度有两个问题而提供的一种有孔穿线的石块木块铝块铜块蜡块。
本发明是通过以下技术方案来实现的：一种有孔穿线的石块木块铝块铜块蜡块，包括石块、木块、铝块、铜块、蜡块、细线。
所述石块、木块、铝块、铜块、蜡块的细端中间穿过小孔，所述小孔中穿过细线，所述细线的一端打上线结后，提起细线的另一端，可分别将石块、木块、铝块、铜块、蜡块竖着提起。
本发明的有益效果在于：
①、测量物质的密度时，免去了教师费时费神寻找、制作合适石块和木块的烦恼。
②、由于细线穿过石块、木块、铝块、铜块、蜡块的细端中间，细线的一端打上线结后，提起细线的另一端，就能将石块、木块、铝块、铜块、蜡块竖着提起，将它们放入量筒中测体积后，提起细线要将它们取出来就十分顺畅，不会卡在量筒中。
③、由于石块、木块、铝块、铜块、蜡块可以做成长度大于量筒内径的长形状，就保证了可以根据测量密度的需要制成适宜的体积，不至于为了做成长、宽、高都跟量筒的内径差不多的形状而使体积太小而增加测量体积的误差。
【附图说明】
图1为一种有孔穿线的石块木块铝块铜块蜡块结构示意图。
附图标记：1、石块；2、木块；3、铝块；4、铜块；5、蜡块；6、小孔；7、细线；8、线结。
【具体实施方式】
下面结合附图1及具体实施方式对本发明做进一步描述：
如图1所示，一种有孔穿线的石块木块铝块铜块蜡块，包括石块1、木块2、铝块3、铜块4、蜡块5、小孔6、细线7、线结8。
所述石块1、木块2、铝块3、铜块4、蜡块5的细端中间穿有小孔6，所述小孔6中穿过细线7，所述细线7的一端打上线结8后，提起细线的另一端，可分别将石块1、木块2、铝块3、铜块4、蜡块5提起。
根据上述说明书的揭示和教导，本发明所属领域的技术人员还可以对上述实施方式进行适当的变更和修改。因此，本发明并不局限于上面揭示和描述的具体实施方式，对本发明的一些修改和变更也应当落入本发明的权利要求的保护范围内。此外，尽管本说明书中使用了一些特定的术语，但这些术语只是为了方便说明，并不对本发明构成任何限制。

Claims (2)

1.一种有孔穿线的石块木块铝块铜块蜡块，其特征在于：包括石块、木块、铝块、铜块、蜡块、小孔、细线。所述石块、木块、铝块、铜块、蜡块的细端中间穿过小孔，所述小孔中穿过细线，所述细线的一端打上线结后，提起细线的另一端，可分别将石块、木块、铝块、铜块、蜡块竖着提起，将它们放入量筒中测体积后，提起细线要将它们取出来就十分顺畅，不会卡在量筒中。
2.根据权利要求1所述的一种有孔穿线的石块木块铝块铜块蜡块，其特征在于：石块、木块、铝块、铜块、蜡块可以做成长度大于量筒内径的长形状，保证了可以根据测量密度的需要制成适宜的体积。
CN201610541540.XA 2016-07-04 2016-07-04 一种有孔穿线的石块木块铝块铜块蜡块 Pending CN106097840A (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87202516U (zh) * 1987-03-02 1988-02-17 夏少明 初中力学组合学具
CN2307324Y (zh) * 1997-09-01 1999-02-10 姜锋 初中物理力学组合学具
CN102359922A (zh) * 2011-09-29 2012-02-22 陆明岳 一种密度快速测量方法及装置
CN203812454U (zh) * 2014-03-31 2014-09-03 尹卓异 一种简易固体密度测量器
CN204479430U (zh) * 2015-03-27 2015-07-15 单照博 一种密度检测装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87202516U (zh) * 1987-03-02 1988-02-17 夏少明 初中力学组合学具
CN2307324Y (zh) * 1997-09-01 1999-02-10 姜锋 初中物理力学组合学具
CN102359922A (zh) * 2011-09-29 2012-02-22 陆明岳 一种密度快速测量方法及装置
CN203812454U (zh) * 2014-03-31 2014-09-03 尹卓异 一种简易固体密度测量器
CN204479430U (zh) * 2015-03-27 2015-07-15 单照博 一种密度检测装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
何晓梅: "《物质密度测定的实验设计》", 《安庆师范学院学报（自然科学版）》 *
王克思: "《固定密度的测定方法》", 《中学物理》 *

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Application publication date: 20161109