longitudinal wave

Understand longitudinal waves through a giant spring wave interactive device. The exhibit is a giant spring wave, which serves as a decoration and popular science exhibit in the venue. The propagation of longitudinal waves is achieved due to the compression and stretching deformation of various body elements in the medium, and the generation of longitudinal elastic forces that restore the body elements to their original state. The exhibit uses a huge spring to simulate the medium, and transmits waves forward by pushing and pulling the spring. The exhibit consists of a row of steel wire rings, push-pull mechanisms, etc. Push the pull rod to start and control the swing direction, causing the steel wire ring to move in a fluctuating manner from back to front. This is because the steel wire ring above undergoes compression and tension under the action of the push-pull mechanism, and then returns to its original state under the action of elastic force. The process of deformation and restoration of the steel wire ring simulates the occurrence of longitudinal waves. Longitudinal waves are waves in which the vibration direction of a particle is consistent with its propagation direction. Sound waves are a typical type of longitudinal wave. Target audience: Adolescents aged 6-15 years old, presenting in various forms.

Interaction type: Electromechanical interactive. The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

1. Mechanical waves are waves that propagate through a material medium (solid, liquid, or gas). There are two basic types of mechanical waves: longitudinal waves and transverse waves. 2. In longitudinal waves, particle displacement is parallel to the direction of wave propagation. The screen displays a one-dimensional longitudinal plane wave propagating along the pipe. Particles will not move forward along the tube with the wave; They just swing back and forth around their respective equilibrium positions. Select a particle and observe its motion. The screen displays the difference between the oscillatory motion of a single particle and the propagation of waves in a medium. The screen also identifies compressed and sparse areas. P-waves (primary waves) in earthquakes are examples of longitudinal waves. P-waves propagate at the fastest speed and arrive first. Longitudinal wave is a type of wave, also known as "density wave", characterized by the parallel motion direction and propagation direction of particles. Sound waves are a typical longitudinal wave. Reference materials.