Chapter 5

Question 1

What are the relationships formed by the inverse square law?

Answer 1

describes the relationship between sound pressure

level and distance from the source

Question 2

Calculations based on the inverse square law are a routine part of ______ ________

Answer 2

sound reinforcement

Question 3

What does the inverse square law state ?

Answer 3

that the intensity of the sound varies with the square of the distance.

Question 4

What is the effect of the influence of environmental factors sound propagated outdoors is subject to ?

Answer 4

Such influences can cause the behavior of sound systems to deviate from that predicted by inverse square calculations

Question 5

TRUE OR FALSE

The effects of these influence of environmental factors are most noticeable in largescale outdoor events

Answer 5

True

Question 6

What are the factors affecting sound outdoors ?

Answer 6

are wind, temperature gradients, and humidity.

Question 7

Wind effects are divided into two

classes - what are these two classes?

Answer 7

velocity effects and gradient effects.

Question 8

What are some assumptions of the inverse square law?

Answer 8

a) A point source of sound (omni
directional radiator)

b) Free field conditions (no reflective
boundaries) .