Help me please Fill in the blanks:
1. Time taken by an object to complete one oscillation is called
2. Loudness is determined by the
of vibration.
3. The unit of frequency is
4. Unwanted sound is called
5. The shrillness of a sound is determined by the of vibration.
5. The two kinds of sounds we cannot hear are
and
7. Choose the correct answer. Sound can travel through
(a)
solids only (c) liquids only (d) solids, liquids, and gases
. Voice of which of the following is likely to have a minimum frequenc
(a) Baby girl (b) Baby boy (c) A man (d) A woman
. Sound is a kind of
(a) work (b) energy (c) force (d) pressu
0.1 hertz is equal to
(a) 1 vibration per minute (b) 1​