Amplitude and frequency

Observe the vibration frequency by moving the spring steel plate to understand the relationship between amplitude and frequency. The exhibit consists of sliding rails and spring steel sheets. Pulling the spring steel plate and moving the handle gradually shortens the length of its vibrating part, it is found that its vibration frequency will become faster and the vibration amplitude will become smaller. The exhibit the physical quantities that describe the vibration state of an object: amplitude and frequency. Amplitude is numerically equal to the maximum displacement during vibration, while frequency is the number of times a full vibration is completed per unit time. Amplitude and frequency determine the loudness and pitch of sound, respectively. When playing musical instruments in daily life, different sounds are produced by changing the amplitude and frequency. Target audience: Adolescents aged 6-15 years old. Interactive display device operation instructions (audience experience) 1 Pull the spring steel plate, move the handle, and gradually shorten the length of its vibrating part; 2. Observing the changes in amplitude and frequency, it was found that the vibration frequency would increase.

Interaction type: Interactive installation. 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. Amplitude refers to the maximum value that the physical quantity of vibration may reach, usually represented by A. It is a physical quantity that represents the range and intensity of vibration. 2. Frequency is the number of times a periodic change is completed per unit of time, and is a quantity that describes the frequency of periodic motion. The concept of frequency is not only applied in mechanics and optics, but also commonly used in quantum mechanics, electromagnetics, and radio technology. 3. Amplitude and frequency, amplitude is numerically equal to the maximum displacement during vibration, while frequency is the number of times a full vibration is completed per unit time. Amplitude and frequency determine the loudness and pitch of the sound, respectively. When playing musical instruments in daily life, different sounds are produced by changing the amplitude and frequency. Reference materials.