When you speak softly, the energy in the sound waves you produce is low compared to speaking loudly (where energy is higher in the waves). Therefore, the amplitude of the sound waves of the softer sound is smaller than that of the higher voice. It is important to note that the frequency of the sound waves will be the same in the two.
A constellation is a pattern of stars forming a pattern and they <span>are always in the same place.
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Definition of Constellation
A group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure. Modern astronomers divide the sky into eighty-eight constellations with defined boundaries.
The basic form of matter is the
atom. Atoms can be distinguished from each other and they are known as
elements. When elements combined, they form compounds. The can either contain
two or more elements. When you combined compounds of different types or
classes, they form mixtures.
Atomic number shows the number of protons, and charge of the nucleus.
Mass number shows sum of the number proton and neurons in the nucleus.