Sound waves
A)are produced by vibrating objects.
B)travel in a vacuum.
C)travel as visible waves.
D)cannot travel in solid objects.

Question

Quizplus · Accepted Answer

Sound waves are produced by vibrating objects, such as vocal cords, guitar strings, or a drumhead. Without these vibrations, there would be no sound waves.

Answer: D 
 Sound waves cannot travel in solid objects. They need a medium such as air, water or another substance to travel through. In solids, the particles are too tightly packed together to allow for the propagation of sound waves.

Therefore, the best choice is A.

Sound Waves