What are the 2 main parts of a longitudinal wave?
A compression is where the particles of the medium are closest together, and a rarefaction is where the particles are farthest apart.
What does longitudinal wave mean?
Longitudinal wave, wave consisting of a periodic disturbance or vibration that takes place in the same direction as the advance of the wave. Sound moving through air also compresses and rarefies the gas in the direction of travel of the sound wave as they vibrate back and forth.
What’s another name for longitudinal waves?
compressional waves
What are the characteristics of longitudinal waves?
Longitudinal waves form when the particles of the medium vibrate back and forth in the same direction of the traveling wave. The wave can be visualized as compressions and expansions travelling along the medium. The distance between adjacent compressions is the wavelength. Figure 2: Parts of a longitudinal wave.
How do you determine longitudinal waves?
The wavelength can always be determined by measuring the distance between any two corresponding points on adjacent waves. In the case of a longitudinal wave, a wavelength measurement is made by measuring the distance from a compression to the next compression or from a rarefaction to the next rarefaction.
What are the harmful effects of electromagnetic waves to humans and the environment?
The main effect of radiofrequency electromagnetic fields is heating of body tissues. There is no doubt that short-term exposure to very high levels of electromagnetic fields can be harmful to health.
How do electromagnetic waves affect the brain?
Electromagnetic waves, particularly RF-EMFs emitted by mobile phones are absorbed into the brain to such an extent that it can affect the activity of neurons (Kleinlogel et al., 2008; Hinrikus et al., 2018). Glucose metabolism in the brains that were exposed to RF-EMF increased rapidly.