Lecture 4:Complex Waves and Spectra
Quiz
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Education
•
University
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Hard
Ian Morton
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is the best answer?
Power- amount of snow
Power is typically measured in watts
Power- amount of energy
Power is typically measured in watts
Power- amount of energy
Power is typically measured in chocolate
Power- amount of energy is typically measured in watts
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement is correct?
we can tell the dierence
between
Use log scale in sound because we have a small dynamic
range.
we can tell the dierence
between
Use raw scale in sound because we have a large dynamic
range.
we can tell the dierence
between
Use log scale in sound because we have a discreet
range.
we can tell the dierence
between
Use log scale in sound because we have a large dynamic
range.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which answers all fit?
If we use a linear scale we loose a lot of _____ about differences in low intensity sounds
Much of the sounds we are interested in are in the _____ intensity r Log scale (dB) _____ out this range Log Scale Log scale Linear scale whisper conversation rock Level in energy
information,
lower,
contracts
information,
lower,
stretches
information,
upper,
stretches
information,
middle
,stretches
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What isthe dynamic range of human hearing ?
the dynamic range of human hearing is 10-14 watts/m2 If we used the bel scale, the total dynamic range relevant for human hearing would be 8 Bels.
the dynamic range of human hearing is 10-14 watts/m2 If we used the bel scale, the total dynamic range relevant for human hearing would be 14 Bels.
the dynamic range of human hearing is 10-14 watts/m2 If we used the bel scale, the total dynamic range relevant for human hearing would be 14 snowballs.
the dynamic range of human hearing is 10-14 watts/m2 If we used the bel scale, the total dynamic range relevant for human hearing would be 1400 Bels.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement BEST describes sine waves
Complex Waves The sine wave is the sign at the surf shop
Complex Waves The sine wave is the fundamental component of all sounds
All waves that are not sine waves are complex waves All of the natural sounds we encounter in the environment are complex waves
Made up by adding together sine waves
Complex Waves The sine wave is the fundamental component of all sounds
All waves that are not sine waves aresimple waves All of the natural sounds we encounter in the environment are complex waves
Made up by adding together sine waves
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Summing Waves
Combining waves is simply adding together_________
Summing together sine waves of different frequencies results in complex _____________________
the instantaneous amplitudes over time.
complex waves that have different qualities
the instantaneous amplitudes over fish.
complex waves that have different qualities
the slow developing amplitudes over time.
complex waves that have different qualities
the instantaneous flying monkeys over time.
complex waves that have different qualities
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Types of Waves
Simple- sound wave made up of ____ sine wave (freq)
Complex- sound wave made up of ___ or more sine waves (freqs
one
and
three
one and two
wild,
crazy
very low,
two
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