Question

Sound can travel through
A. solids and liquids
B. liquids and gases
C. solids and gases
D. all of these

Answer 1

Hint: Sound is produced by the vibrational bodies. Actually the vibrational motion is the disturbance and it needs a medium to travel. That medium needs to be interconnected.

Complete step-by-step answer:
Sounds are produced by the vibrations. Then it travels in mechanical waves. It needs a medium to travel by colliding the molecules in it. As solids, liquids and gases are all made up of molecules. So it can travel through all these mediums.
So the correct option is option D.

Additional information:
(i)Sound waves are made by the vibrational motions. Then it uses medium to travel. It uses molecules as its medium. As the molecules are very closely packed in the following sequence that solid, liquid and then gas. So sound travels faster in solids, the liquids and then the gases.
(ii)Sound waves can travel thirteen times faster in solid than air because in solids molecules are closely packed. Like the same, sound waves can travel through four times faster in liquids than air.
(iii)Sound waves lose energy while travelling. That’s why we hear least sound when we are farther the source of the sound.
(iv) In space, we cannot hear the sound. Because there is no air in the space. Astronauts are speaking through the radio communication while they are in the space.
(v)We might think that both light and sound have same velocity when we think about fire crackers, lightning. But its not, because light travels \[3 \times {10^8}\]metres per seconds. But sound can travel only 332 metres per second.

Note:Sound needs a medium to travel. It uses molecules of the solid, liquid, and gases as its medium. It travels by vibrating the molecules in the matter.