Newton's Third Law
★Exhibit Content: Popular science experience of Newton's third law of action and reaction ★Interaction: Electromechanical interactive demonstration ★Operation: Press the forward/backward button to start the small train and intuitively observe the movement direction of the small train and the circular track. ★Exhibit Description: "Newton's Third Law" is an interactive exhibit for popular science of classical mechanics, belonging to the basic mechanics exhibition area, and is a recommended exhibit by KexMall. The exhibit consists of a circular painted round table, a transparent acrylic protective cover, a suspended circular track, an electric small train, forward and backward control buttons, and a power supply control system. When the audience starts the small train, they can clearly see the train and the circular track rotating in completely opposite directions, intuitively and concretely demonstrating the physical law that action and reaction forces are equal in magnitude and opposite in direction. ★Scientific Principle: This exhibit demonstrates Newton's third law (law of action and reaction): when the wheels of the small train rotate, they exert a forward friction force on the track, and the track simultaneously exerts a reverse friction force on the train; according to the law, the two forces are equal in magnitude, opposite in direction, and act on two different objects, so the train moves forward and the track rotates in the opposite direction. This law is widely used in various power scenarios such as rocket launch, vehicle driving, and ship navigation.
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- Φ1.2×1.2m Φ1.2×1.2mDimensions (diameter × height): Φ1.2×1.2m Brand: KexMall Model: PopsciCat-mechanics-223 1. Materials ①Base: frame 2mm cold-rolled steel plate, enclosure 2.0mm cold-rolled steel plate, surface with white and blue paint, scratch-resistant and wear-resistant ②Tabletop: Kelaisi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③Instruction sign: 5mm acrylic UV high-definition printing, printed with Newton's third law principle and operation steps ④Maintenance opening: 2.0mm cold-rolled plate painted cover ⑤Protective cover: 5mm colored + high-transparency acrylic material, smooth edges, stable structure, fully enclosing and protecting the track and the train ⑥Circular track: rust-proof alloy material, smooth low-friction suspended support structure ⑦Small train: ABS shell + metal transmission mechanism, stable and uniform driving 2. Main Configuration ①Electronic control system: electrical logic control system, equipped with Guanjian® K1 type PLC controller with protection specially for science exhibits ②Control buttons: self-resetting stainless steel metal forward and backward buttons ③Circular suspended track assembly 1 set ④Electric small train power module 1 set 3. Exhibition Requirements ①Energy requirement: AC100-240V, 50/60Hz/200W (standard three-wire socket, reliable grounding) ②Installation foundation: circular operation table placed directly on the floor ③Entry passage: door frame size (width × height) ≥1.4m×1.4m, continuous turning interval of passage ≥2.0m ④Maintenance passage: not required
★Exhibit Content: Popular science experience of Newton's third law of action and reaction ★Interaction: Electromechanical interactive demonstration ★Operation: Press the forward/backward button to start the small train and intuitively observe the movement direction of the small train and the circular track. ★Exhibit Description: "Newton's Third Law" is an interactive exhibit for popular science of classical mechanics, belonging to the basic mechanics exhibition area, and is a recommended exhibit by KexMall. The exhibit consists of a circular painted round table, a transparent acrylic protective cover, a suspended circular track, an electric small train, forward and backward control buttons, and a power supply control system. When the audience starts the small train, they can clearly see the train and the circular track rotating in completely opposite directions, intuitively and concretely demonstrating the physical law that action and reaction forces are equal in magnitude and opposite in direction. ★Scientific Principle: This exhibit demonstrates Newton's third law (law of action and reaction): when the wheels of the small train rotate, they exert a forward friction force on the track, and the track simultaneously exerts a reverse friction force on the train; according to the law, the two forces are equal in magnitude, opposite in direction, and act on two different objects, so the train moves forward and the track rotates in the opposite direction. This law is widely used in various power scenarios such as rocket launch, vehicle driving, and ship navigation.
Review
Principle Display: ★★★★ Interaction Effect: ★★★★ Ease of Installation: ★★★★★ Durability: ★★★★ Overall Rating: ★★★★