Question

1. Define Vibration
2. Define Sound

Answer 1

1) Vibration:-

Vibration can be defined as the oscillating, reciprocating or other periodic back-and-fourth motion of the particles of an elastic body or medium forced from a position or state of equilibrium.

2) Sound:-

Sound can be defined as a energy (just like light, electricity, etc.) which affects our ears and produces a sensation in our ears. Vibration of sources produces sound.

Answer 2

Hi vieola,

vibration:

periodic motion about an equilibrium position,
such as the regular displacement of air in the propagation of the sound.

sound:

vibrations that travel through air is called sound.

sound has a energy.

hope it helps....