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Hear the Acceleration

Force & Mechanics

★Exhibit Content: Gravitational Acceleration ★Interaction: Mechanical Interaction ★Operation: Pick up the ball from the storage slot, release it at the highest point of the track, and observe the falling effect of the ball. ★Exhibit Description: The exhibit consists of a track, bells suspended on the track, a ball return mechanism, a storage slot, and a ball. The bells on the track can be adjusted in spacing according to the scale on the side, and the ball return mechanism allows the fallen ball to return to the storage slot. Participants pick up the ball from the storage slot and release it at the highest point of the track. As the ball rolls, it will hit the bells suspended on the track one by one, and listen to the changes in the time intervals between the bells ringing. When the bells are equally spaced, the ball hits the bells, and the sound intervals become shorter and shorter. Arrange the bells according to the principle of gravitational acceleration; when the ball hits the bells, the time intervals between the bells ringing are equal. ★Scientific Principle: Through mechanical interaction, the exhibit inspires visitors' interest in knowledge related to acceleration. Gravitational acceleration is the acceleration of an object in free fall near the Earth's surface, approximately 9.8 m/s², directed vertically downward. It arises from the Earth's gravitational pull on the object and is independent of the object's mass. In free fall, the object's speed increases by 9.8 m/s every second. Gravitational acceleration varies slightly with latitude and altitude and is an important parameter in studying object motion and engineering design.

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Principle Display: ★★ Interaction Effect: ★★★ Ease of Installation: ★★★★ Durability: ★★★ Overall Rating: ★★

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