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Experiment teaching aid for verifying Archimedes principle and using method thereof

An experiment and principle technology, applied in the field of teaching aids, can solve the problems of many experimental instruments, cumbersome steps, waste of time, etc., and achieve the effect of reducing production costs and avoiding easy breakage.

Inactive Publication Date: 2017-03-15
神农架林区实验小学
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this experiment can intuitively demonstrate Archimedes' principle, because two spring balances, an overflow device and a container for receiving water are used, there are many experimental instruments, the operation is complicated, the steps are cumbersome, and time is wasted

Method used

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  • Experiment teaching aid for verifying Archimedes principle and using method thereof
  • Experiment teaching aid for verifying Archimedes principle and using method thereof
  • Experiment teaching aid for verifying Archimedes principle and using method thereof

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Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0029] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

[0030] Figure 2-Figure 4 An implementation form according to the present invention is shown, which includes: a container 1, which is cylindrical and provided with a capacity scale mark on it, and the function of this member is to accommodate the liquid and directly read the volume scale; the floating ball 2. The floating ball 2 includes a tail rod 21, an outer shell 22 and an inner core 23. The outer shell 22 is made of polyethylene plastic and has a spherical shape. The inner core 23 is a stainless steel ball. The number of the floating ball 2 is 1 -5 pieces, respectively the ...

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Abstract

The invention discloses an experiment teaching aid for verifying the Archimedes principle and a using method thereof. The experiment teaching aid comprises a container with capacity scale marks, 1-5 different polyethylene floating balls of known mass, and a polyethylene floating cup. Each floating ball includes a tail rod, a shell, and a core. During use, the container is filled with fluid of which the density is rho, and the initial volume is recorded as V0.The floating balls of known mass are added. If the floating balls can float on the fluid, the buoyancy F(buoyancy) is equal to the gravity G(ball). After the floating balls are added, the volume V of the fluid can be read directly. The volume V(displaced fluid) of fluid displaced can be calculated according to the difference between scale readings on the container, namely, V(displaced fluid)=V-V0. Thus, G(displaced fluid)=rho*g*V(displaced fluid). F(buoyancy)=G(ball)=G(displaced fluid), namely the Archimedes' principle, can be verified through comparison. The experiment teaching aid has the advantages of simple structure, convenient use, and diversity. The influence of density on buoyancy and the influence of volume on buoyancy can be inspected separately. Moreover, students' interest in learning can be stimulated, and the understanding of knowledge can be deepened.

Description

technical field [0001] The invention relates to a teaching aid. More specifically, the present invention relates to an experimental teaching aid for verifying Archimedes' principle in a physics class and a using method thereof. Background technique [0002] Archimedes' principle is also called Archimedes' law, that is: an object immersed in a liquid is subjected to an upward buoyant force, and the buoyant force is equal to the gravity of the liquid displaced by the object. It was discovered by the ancient Greek scholar Archimedes, so it was named Archimedes principle. This principle applies not only to liquids, but also to gases. The size of the buoyancy is expressed by the calculation formula, that is, F 浮 =G 排 = ρ 液(气) wxya 排 . It is one of the basic principles in mechanics and an important content in middle school physics courses. [0003] When teachers teach this principle to students in middle school courses, they should cooperate with simple verification experi...

Claims

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Application Information

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IPC IPC(8): G09B23/12
CPCG09B23/12
Inventor 万志均潘远华李国会
Owner 神农架林区实验小学
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