May 21 2011

How fast is Mach 1? What is a sonic boom?

Category: Science

Answer:

Mach 1 is essentially achieved when an aircraft or other moving object exceeds the speed of sound (also known as supersonic). The speed of sound, in normal, conditions is 768 miles per hour or 1,236 kilometers per hour. Going faster than the speed of sound will typically accompany a shock wave that is caused by the pressure difference. This shock wave or Mach cone is what creates the sonic boom. Mach numbers are named after the Austrian physicist Ernst Mach.

Mach 1 - Mach 2


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