True. The up-down type of wave is called a "transverse wave". Light, for example, is this kind of wave. Sound, however, is a different kind of wave. It is the back-forth type, called "longitudinal", or "compression" waves.
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The wave in which particles move back and forth at right angles to the direction of travel is called a transverse wave. This type of wave is commonly observed in phenomena such as light and electromagnetic waves.
P-wave particles move in the same direction as the wave's propagation, which is the direction of energy transfer. This movement is back and forth in the direction of the wave.
The energy of a wave moves forward with the wave. A wave is moving energy, and the wave carries it in the direction of propagation.
A seiche wave is a standing wave in an enclosed or partially enclosed body of water, like a lake, reservoir, or bay. It is typically caused by a shift in atmospheric pressure or by seismic activity, leading to a rhythmic oscillation of the water's surface. This can result in water sloshing back and forth, similar to how water moves in a bathtub.
Seismic waves are vibrations that travel through the Earth's layers, causing rock particles to move back and forth in the direction of the wave propagation. These waves are generated by seismic events, such as earthquakes or explosions, and carry energy that can cause shaking and deformation of the Earth's crust.