Different Elasticities
★Exhibit Content: Elasticity differences of different materials ★Interaction: Mechanical interaction ★Operation: Pull the lever to eject the ball from the base, observe the height of the ball's bounce, and compare which metal has the greatest elasticity. ★Exhibit Description: The exhibit uses an interesting interactive device to show the differences in elasticity of different materials. The exhibit mainly consists of a display cabinet, protective panels, metal sheets, ejection mechanism, tracks, balls, etc. Using 4 sets of different metal sheets as bases, 4 sets of elasticity testing devices are set up. The ejection mechanism ejects the ball onto the track, and based on the height of the ball's bounce, compare which metal has the greatest elasticity. ★Scientific Principle: The change in shape or volume of an object under the action of force is called deformation. After the external force stops acting, the deformation that can restore the original shape is called elastic deformation. The deformed object, due to the need to restore the original shape, exerts a force on the object in contact with it. This action is called elastic force. That is, within the elastic limit, the force exerted by the object on the force-applying object that causes the deformation is called elastic force.
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- 1.4×0.8×2.0 1.4×0.8×2.0Dimensions (unit: m): 1.4×0.8×2.0 Brand: KexMall Model: PopsciCat-Progress-004 1. Materials: ① Display stand: frame 30 square tube, enclosure 2.0mm cold-rolled sheet, surface baked paint ② Tabletop: Kelesi artificial stone, thickness ≥10mm ③ Protective panel: transparent acrylic material, impact-resistant and easy to clean ④ Metal base: 4 different metal sheets, surface anti-rust treatment ⑤ Ejection mechanism: metal and ABS composite material, stable and durable structure 2. Main configuration: ① 4 sets of elasticity testing channels, including tracks, metal bases, ejection mechanisms ② Lever set, corresponding to 4 channels ③ Transparent protective display cabinet 1 set 3. Exhibition requirements: ① Energy demand: none ② Installation foundation: direct placement, floor load-bearing ≥100kg/㎡ ③ Entry passage: door frame size (width×height) ≥1.0m×2.2m, continuous turning interval ≥1.8m ④ Maintenance passage: not required
★Exhibit Content: Elasticity differences of different materials ★Interaction: Mechanical interaction ★Operation: Pull the lever to eject the ball from the base, observe the height of the ball's bounce, and compare which metal has the greatest elasticity. ★Exhibit Description: The exhibit uses an interesting interactive device to show the differences in elasticity of different materials. The exhibit mainly consists of a display cabinet, protective panels, metal sheets, ejection mechanism, tracks, balls, etc. Using 4 sets of different metal sheets as bases, 4 sets of elasticity testing devices are set up. The ejection mechanism ejects the ball onto the track, and based on the height of the ball's bounce, compare which metal has the greatest elasticity. ★Scientific Principle: The change in shape or volume of an object under the action of force is called deformation. After the external force stops acting, the deformation that can restore the original shape is called elastic deformation. The deformed object, due to the need to restore the original shape, exerts a force on the object in contact with it. This action is called elastic force. That is, within the elastic limit, the force exerted by the object on the force-applying object that causes the deformation is called elastic force.
Review
Principle Display: ★★★ Interaction Effect: ★★★★ Ease of Installation: ★★★★★ Durability: ★★★★ Overall Rating: ★★★