SSC MTS EXAM

SSC

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is vibration?
A
how loud a sound is
B
the back and forth movement of matter
C
how high or low a sound is
D
the loudness or softness of a sound
Explanation: 

Detailed explanation-1: -When an object moves back and forth, it is called a vibration. Vibrations carry energy. Wave-a disturbance that propagates through a medium or space. Waves are a method of transporting energy.

Detailed explanation-2: -Vibration. A rapid back and forth motion of a particle about its mean position are known as vibrations, vibration causes sound.

Detailed explanation-3: -Matter is made up of molecules. All molecules have energy and are in constant motion, they vibrate. This vibration is the energy of the matter and can be measured as temperature. Most matter expands when heated, and when cooled it contracts.

There is 1 question to complete.