Question

In general, as the energy of a sound wave increases, A. the sound gets softer and then louder. B. the sound gets louder. C. the sound always remains the same. D. the sound gets softer.

Answer 1

The sound gets louder, like hitting a metal pole on a thin metal beam, the energy increases as the sound does.

Answer 2

Answer;

B. the sound gets louder

Explanation;

• Sound waves are examples of mechanical longitudinal waves. Mechanical waves because they require a material medium for transmission. Longitudinal waves because the vibration of particles in sound waves is parallel to the direction of wave motion.
• As the energy of a sound wave increases, then the sound becomes louder. The higher the energy of a wave the higher the amplitude of sound waves. Therefore, greater amplitude of sound waves means the waves possess higher energy and thus greater intensity and therefore, the sound will be louder.