Sound Waves Short Question With Answer: General Science Cadet College Test
Q.No.01: Define wave?
Ans: Wave is a disturbance that transfers energy from one point to the other.
Q.No.02: What is Medium?
Ans: Many waves require some material to travel through. This material thing is called a medium.
Q.No.03: Define Transverse waves?
Ans: A wave in which particles of the medium move perpendicularly to the path of the wave is called transverse wave.
e.g., water waves.
e.g., water waves.
Q.No.04: What is the difference b/w crest & trough?
Ans: (1) The highest point of a transverse wave is called a crest.
(2) Lowest point between two crests is called trough.
(2) Lowest point between two crests is called trough.
Q.No.05: Define longitudinal waves.
Ans: A wave in which particles of medium move back and forth, parallel to the path of wave is called longitudinal wave.
Q.No.06: What do you know about compression?
Ans: The parts of a longitudinal wave where particles of the medium are compressed together are called compression.
Q.No.07: How will you define a rarefaction?
Ans: The parts of a longitudinal wave where particles of the medium are spread out are called rarefaction.
Q.No.08: How sound waves reach our ears?
Ans: Sound waves from a vibrating body produce longitudinal waves in the air. These waves reach our eardrum.
Q.No.09: Define electrical energy?
Ans: The energy of moving electric charges within a circuit is called electrical energy.
Q.No.10: Define wavelength?
Ans: A wavelength is the shortest distance between two adjacent crests or troughs of a transverse wave.
Q.No.11: How is the wavelength of longitudinal waves measured?
Ans: For longitudinal waves, it is the distance between two adjacent compressions or rarefactions.
Q.No.12: Define Amplitude?
Ans: Amplitude of a wave is the maximum distance of a vibrating wave from its rest position.
Q.No.13: What is wave frequency?
Ans: Wave frequency is the number of waves that pass a point in one second. It is measured in hertz (Hz).
Q.No.14: What is wave speed?
Ans: Wave speed is the distance a wave travels per unit of time.
Q.No.15: What is the period of a wave?
Ans: The period is the time taken for one complete wave to pass a point.
