Demonstrative experiment device for force resolution
An experimental device and dynamometer technology, which is applied in the field of demonstration experiments, can solve the problems of the change of the inclination angle of the ruler, the problem of the decomposition of the force of the teaching material, and the inability to quantitatively read the two component forces, etc. Convenience, easy observation, good demonstration effect
Active Publication Date: 2015-01-14
山东郓城顺运纺织有限公司
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Problems solved by technology
But this kind of experiment has two disadvantages. One is that the straightedge will be bent to change the inclination angle of the inclined plane.
Second, it is impossible to quantitatively read the magnitude of the two component forces
The problem of force decomposition in the textbook cannot be well explained here
Method used
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[0011] The decomposition demonstration experiment device of the force that the present invention adopts comprises the square plywood 2 that side length is 50cm, the square plywood 3 that side length is 50cm, support 1, rotating shaft 4, disc dynamometer 5, disc dynamometer 6, 10cm×16cm small square tray cut from light and thin iron sheet 7, physical trolley 8, demonstration spring scale 9. A square plywood 2 with a side length of 50 cm is fixed vertically on the support 1, and a square plywood 3 with a length of 50 cm on the other side is installed in the middle of the support 1 through a rotating shaft 4 so that it can rotate. 3. Install two disk dynamometers 5 and 6 on the vertical direction. Install a 10cm×16cm small square tray 7 cut from light and thin iron sheets on the disk dynamometer 6 installed in the vertical direction. A physical dolly 8 is placed on the pallet 7, and a demonstration spring scale 9 is held in the right hand of the physical dolly 7.
[0012] The pr...
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The invention discloses a demonstrative experiment device for force resolution. The device comprises two pieces of square veneer wood, a support, a rotary shaft, two disc force gauges, a small square tray, a physics trolley and a demonstrative spring scale. The small square tray is formed by shearing a light and thin iron sheet. One piece of square veneer wood is vertically fixed to the support, and the other piece of square veneer wood is installed in the middle of the support through the rotary shaft so as to rotate. The two disc force gauges perpendicular to each other are fixed to the other piece of the square veneer wood, the small square tray is installed on the disc force gauge installed in the vertical direction, and the physics trolley is placed on the small square tray. In the device, the physics trolley is pulled upwards in an inclined mode in cooperation with the demonstrative spring scale, and the effect of two component forces of the upwards inclined pull force can be demonstrated; through rotating the veneer wood, the inclination angle of the physics trolley placed on the upper portion of the veneer wood is changed so that the effect of the two component forces of gravity can be researched in a qualitative and quantitative mode.
Description
Technical field [0001] The invention relates to a teaching equipment, in particular, it is suitable for demonstration experiments in the teaching of force decomposition. Background technique [0002] In high school physics teaching, there is no ready-made demonstration experimental device in the laboratory for the teaching of force decomposition. In teaching, teachers can only demonstrate some simple experiments to illustrate the decomposition effect of force. For example, put one end of the ruler on the podium, and place the other end on several stacked books to form a slope, so that a heavy object can be placed on the ruler. This illustrates the effect of the two components of gravity. But this kind of experiment has two disadvantages. One is that the straightedge will be bent to change the inclination angle of the inclined plane. The second is that the magnitude of the two component forces cannot be quantitatively read out. The problem of force decomposition in the te...
Claims
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IPC IPC(8): G09B23/10
CPCG09B23/10
Inventor 张阁
Owner 山东郓城顺运纺织有限公司