Gravitational acceleration experiment device

Abstract

The invention belongs to the technical field of physical experiment devices, and provides a gravitational acceleration experiment device, comprising a box body, a pendulum tester and at least two free-fall testers are arranged in the box; the free-fall tester includes a transparent tube, at least Three photoelectric gates and a free fall timer, and a ring electromagnet is arranged on the top of the transparent tube; the pendulum experiment device includes a first pole, a second pole, a photoelectric counter and a pendulum timer, and the top of the first pole A cross bar is provided, a cycloid is arranged on the cross bar, a pendulum ball is provided at the lower end of the cycloid, and a pendulum ball fixing electromagnet for absorbing the pendulum ball that can move up and down is provided on the inner wall of the box. The gravitational acceleration experimental device provided by the present invention can carry out the experiment of free fall and single pendulum to measure the gravitational acceleration, and can also carry out the Foucault pendulum experiment at the same time, easy to operate, can accurately measure the gravitational acceleration, the experimental error is small, the accuracy is high, and the experimental process Intuitive and clear.

Description

technical field [0001] The invention belongs to the technical field of physical experiments, in particular to a gravitational acceleration experimental device. Background technique [0002] Free fall experiment and simple pendulum experiment are necessary experimental courses in physics, but now, the vast majority of physics teaching uses the experiment method of free fall-dot counter, which has a large error and is not easy in the teaching process. Provide students with an intuitive demonstration of the experiment. In addition, the existing physical experiment equipment has a single usage, cannot carry out multiple experiments at the same time, and cannot be used effectively. Contents of the invention [0003] The technical problem to be solved by the present invention is: aiming at the deficiencies in the prior art, provide a device that is easy to operate, can accurately measure the acceleration of gravity in two ways, has small experimental errors, and is intuitive an...

AI Technical Summary

Problems solved by technology

[0002] Free fall experiment and simple pendulum experiment are necessary experimental courses in physics, but now, the vast majority of physics teaching uses the experiment method of free fall-dot counter, which has a large error and is not easy in the teaching process. Intuitive demonstration of experiments to students

In addition, the existing physical experiment equipment has a single usage and cannot carry out multiple experiments at the same time, so it cannot be used effectively

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