Product Description
Centrifugal track Experimental equipment Teaching Instrument
Product Introduction
The Centrifugal track experimental equipment is composed of a base, an annular track, a steel ball, a ball releasing device, a ball receiving frame, etc.
For the safety of storage and transportation of the instrument, when the instrument leaves the factory, the annular aluminum alloy rail is not installed on the base. Please refer to the following figure before use and use the M4 supplied with the machine × 12. Screw and M4 nut fix the annular rail on the base. During installation, please pay attention to: 1. The two fixing screws should not be tightened too tightly, otherwise the base may be deformed and the four feet of the instrument may be uneven; 2.After the aluminum alloy track is installed, check whether the straight rod of the track is obviously twisted. If it is twisted, hold the track ring with one hand and pull the straight rod end outward with appropriate force (no force) with the other hand to prevent the steel ball from touching the adjacent track wall during operation.
Product Specification
| Product name |
Centrifugal track experimental equipment |
| Material |
Plastic & mental |
| Size |
520*110*360mm |
Instructions
Adjust the ball releaser to lower the steel ball at different heights. It can be observed that only when the starting position of the steel ball is high enough can the steel ball overcome the influence of gravity, smoothly pass through the apex of the circular track, reach the end of the track, and enter the ball receiving frame. This height can be calculated as follows: let the radius of the annular track be R, the mass of the steel ball be m, and the initial height be H. The potential energy of the ball before rolling is mgH. The potential energy of the ball when rolling to the top of the annular orbit is mg·2R,
The kinetic energy is ½mV2=mgH - mg·2R.
Solve that the linear velocity of the ball is V=.
The centripetal force required for the ball to move along the orbit at the apex of the circular orbit is
F direction =R(mV2)= R(H-2R)
If the gravity of the ball at the top of the circular orbit P=mg ≤ F direction, the ball will not fall, so mg ≤R(H-2R) H≥2.5R can be obtained.
That is to say, to make the ball roll to the top of the annular track without falling, the minimum height of the ball when it starts rolling down should be 2.5 times the radius of the ring. Due to energy loss, the height of the experiment should be greater than 2.5R.
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