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What determines if a sound is loud or soft?
The determining factor as to the softness or loudness of a sound is the amplitude of the sound wave. We know that sound is mechanical energy, and a source of sound will put mechanical energy into the medium through which it is going to travel. Let's look at the wave. The mechanical wave has a compression phase and a rarefaction phase. In compression, the source compresses the medium to impart energy. In the rarefaction phase, the source will act to decompress the medium. The sound will propagate outward in a series of compression and decompression phases. The difference between a loud and a softer sound is the degree to which a medium is compressed and rarefied during the process by which the sound energy is put into the medium. Fortunately there is a question (and an answer) that goes into this in a bit of detail. It is linked in the Related questions section.
Which wave causes the medium to vibrate only in a direction parallel to the wave's motion?
Longitudinal wave
When the particles ot the medium move back and forth along the direction of the wave motion the wave is a?
longitudinal wave
What is the medium through which the wave is moving?
this is for e2020 students. the answer is: the rope.
Wave mechanical model of the atom?
mass number and atomic number of an atom
