6.When the sound travels through solids,the vibration of the particles occurs_____.
a.fast
b.slowly
c.irregularly
d.vibration

7.How does sound travel through air?
a.in jumping motion
b.fast in random manner
c.verry fast
d.very slowly

8.In which medium can sound wave travel fastest?
a.gases
b.liquids
c.solids
d.solid and liquid

9.Which of the following statement about sound is correct?
a.sounds cannot travel through a solid.
b.sound travels faster in solid than in air
c.sounds travel faster in air than in liquid.
d.the travel of sound is not affected by the medium where it travels.

10.The travel of energy in a form of waves through space is called_____.
a.conduction
b.convection
c.radiation
d.vibration​