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Chapter 9

Science

QuestionAnswer
The pitch of sound is related to its volume. False
Musical instruments that are played at the same pitch and volume still sound different because of their timbre. True
A sound wave carries particles of with it. False
Most sound waves gradually get louder as their energy is used up. False
Sound waves travel in all directions away from the source of the sound. True
Sound moves through matter in waves. True
Most of the sounds that we hear are a blend of several waves. True
Smooth, hard surfaces usually reflect sound. True
Sound waves move slowly through solids. False
Sound waves move fast through gases False
Acoustics is the science of sound. True
Oscilloscope changes sound waves into electrical pictures seen on a graph. True
Sonars uses echoes to look inside a person's body False
A disturbance that moves energy from place to place is called a noise. False
A pitch is how high or how low a sound is. True
Created by: shagkitty
 

 



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