Static-imaging tester for free falling motion
A free-falling, static-moving technology, applied to instruments, educational tools, teaching models, etc., can solve the problems of long experiment time, complicated process, time-consuming and laborious, etc., and achieve the effect of vivid demonstration process, remarkable demonstration effect and simple calculation
Inactive Publication Date: 2016-11-16
郭金虎
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Problems solved by technology
[0002] In the middle school physics teaching process, it is necessary to explain the free fall motion. Usually, the dot timer or strobe camera is used to study its motion law. However, the process is complicated, the experiment time is long, time-consuming and laborious, and sometimes the drip method is also explained to measure the acceleration of free fall motion. , the method of counting the number of drops of water in a period of time is usually used to obtain the total time of free fall, and the local acceleration of gravity is obtained by using the total height. There is a lack of an experimental instrument that uses static images of water droplets to measure the local gravity. acceleration
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[0009] Such as figure 1 As shown in the figure, a static image experiment apparatus for free fall movement includes a horizontal base 1, a vertical bottom plate 2, a vertical slide rail 3, a carriage 4, gong nails 5, a horizontal top plate 6, a support rod 7, and a medical hanging bag 8 , dropper 9, dripper 10, fixed belt 11, fixed plate 12, drip switch 13, scale 14, horizontal slide bar 15, stroboscope 16, water tank 17; A vertical bottom plate 2 is installed on the described horizontal base 1 , vertical slide rails 3 are installed on the left and right sides of the vertical bottom plate 2, and the left and right sides of the slide frame 5 are connected by a horizontal slide bar 15, and the slide frame 5 can slide up and down in the vertical slide rail 3, and Positioning by two gong nails 5 on the left and right; the slide frame 4 is used to install the stroboscope 16, and the stroboscope 16 can move left and right along the horizontal slide bar 15, and the stroboscope 16 use...
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The invention relates to a static-imaging tester for free falling motion. The static-imaging tester comprises a base, a base plate, a slide rail, a slide carriage, screws, a top plate, supporting rods, medical suspension bags, dripping pipes, dripping heads, a fixing tape, a fixing plate, water dripping switches, scales, a horizontal slide rod, a stroboscope and a water trough. The vertical base plate is provided with the vertical slide rail. The slide carriage can vertically slide in the vertical slide rail. The slide carriage is used for mounting the stroboscope. The horizontal top plate is connected with the vertical base plate through the supporting rods. The medical suspension bags are connected with the medical dripping pipes and the dripping heads. The water dripping switches are used for adjusting the size of each water drop. Two scales are arranged and are vertically mounted right below the dripping heads for measuring the vertical distance between the water drops. According to the static-imaging tester, static processing is performed on the water drops in free falling motion; the distance between the water drops and the working frequency of the stroboscope are directly read, thereby calculating the gravitational acceleration. The static-imaging tester has advantages of simpler calculation, effective time-and-labor saving function, and remarkable demonstrating effect.
Description
technical field [0001] The invention relates to the field of teaching tools and equipment, in particular to a static imaging experiment instrument for free-fall motion. Background technique [0002] In the middle school physics teaching process, it is necessary to explain the free fall motion. Usually, the dot timer or strobe camera is used to study its motion law. However, the process is complicated, the experiment time is long, time-consuming and laborious, and sometimes the drip method is also explained to measure the acceleration of free fall motion. , the method of counting the number of drops of water in a period of time is usually used to obtain the total time of free fall, and the local acceleration of gravity is obtained by using the total height. There is a lack of an experimental instrument that uses static images of water droplets to measure the local gravity. acceleration. Contents of the invention [0003] In order to solve the problems raised in the abo...
Claims
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IPC IPC(8): G09B23/12
CPCG09B23/12
Inventor 林心悦王辰萱王子鸣
Owner 郭金虎