Sound — Science STD 9 — Question

Sonic boom is a common name for the loud noise that is created by the 'shock wave' produced by the air-plane that is traveling at speeds greater than that of sound (speed of sound is approximately 332m/s or 1195km/hr or 717 miles/hour).These speeds are called supersonic speeds, hence this phenomena is sometimes called the supersonic boom.
It's caused by shock waves created by any object that travels through the air faster than the speed of sound. Sonic booms create huge amounts of sound energy. When an object moves through the air, it makes pressure waves in front of and behind it here pressure waves travel at the speed of sound.