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Collision

Force & Mechanics

★Exhibit Content: Popular science on the principles of conservation of momentum and energy transfer ★Interaction: Electromechanical interaction ★Operation: Operate the automatic ball-pulling mechanism to lift a ball on one side and release it, and observe the momentum transfer phenomenon during the collision of the balls. ★Exhibit Description: This exhibit consists of a display stand, stainless steel balls, steel wires, etc. Seven stainless steel balls in seamless contact are suspended from a crossbeam. Pull a ball on one side to a certain height and release it. When the ball returns to its original position and collides, the ball on the other end will bounce up. After falling, the originally pulled ball is bounced up again until the energy is dissipated. During this process, the other balls between them do not change position. ★Scientific Principle: "Collision" is a classic interactive science exhibit on classical mechanics. With seven seamlessly contacting stainless steel balls as its core, it intuitively reproduces the physical laws of conservation of momentum and energy transfer. Visitors can manually or automatically pull a ball, causing a ball on one side to fall from a certain height. At the moment of collision, momentum and energy are precisely transferred, ultimately causing the ball on the other side to bounce up while the middle balls remain stationary. This process is not only a vivid demonstration of Newtonian mechanics but also reveals the profound order of "force and motion" in nature, allowing visitors to understand abstract physical principles through intuitive experience. 1. Law of Conservation of Momentum: In an ideal elastic collision, the total momentum of the system remains constant. When a ball on one side falls, its momentum is transferred sequentially through the middle balls, ultimately causing an equal-mass ball on the other side to bounce up with the same speed. 2. Conservation and Transformation of Energy: During the collision, kinetic energy is efficiently transferred between the balls, while gradually dissipating due to air resistance and imperfectly elastic collisions, eventually causing the balls to stop moving. 3. Characteristics of Elastic Collision: The high elasticity and equal-mass design of the stainless steel balls ensure approximately elastic collisions, making the momentum transfer process clearly visible.

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

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