Question

A sonar system measures distance by determining the ______________it takes for sound waves to bounce off a surface.

Answer 1

A sonar system measures distance by determining the time it takes for sound waves to bounce off a surface.

Answer 2

Time

Step-by-step explanation:

The sonar is constantly sending signals into the space surrounding him, then he measures the waves that come back by bouncing in surfaces and it calculates the distance that it took those waves to come back to see how far away the surface located is.