Pitch & Hearing
Frequency & Tuning
Wave Measures
Compare Sounds
Wave Shapes
100
As the frequency of a sound wave increases, what happens to its pitch?
What is a higher pitch?
Evidence: From key idea W.2a
100
Frequency tells how many cycles or vibrations happen in what time?
What is one second?
Evidence: From Key Idea W.2a, under the density diagrams
100
What is one complete repeating pattern of a wave called?
What is a cycle?
Evidence: From under Key Idea W.2d
100
A density comparison says Sound B's particles are more densely packed than A's. Which sound has the higher amplitude?
What is Sound B?
Evidence: From above Key Idea W.2c, under W.2b
100
In a sound-wave diagram, where are the particles closest together (highest density)?
What is at the crest, the highest-density region?
Evidence: Near Key idea w.2d
200
Why can dogs hear a dog whistle that people cannot?
What are frequencies higher than humans can hear?
Evidence: From under key idea W.2a, right above key idea W.2b
200
Which sound property is determined by frequency?
What is pitch?
Evidence: From Key Idea W.2a
200
What does the period of a wave measure?
What is the time to complete one cycle?
Evidence: From Key Idea W.2d
200
Two sounds complete the same number of cycles in the same time interval. How do their frequencies compare?
What is the same frequency?
Evidence: From the image below Key Idea W.2c
200
In a sound-wave diagram, where are the particles farthest apart?
What is at the trough, the lowest-density region?
Evidence: Near key idea W.2d
300
What happens to the range of frequencies people can hear as they age?
What is a smaller hearing range?
Evidence: From under key idea W.2a, right above key idea W.2b
300
What is the highest frequency listed that humans can hear?
What is 20,000 hertz?
Evidence: From Key Idea W.2a, under density diagrams
300
What does amplitude measure for a vibrating particle?
What is its distance from its original position during vibration?
Evidence: From Key Idea W.2b
300
Sound A has dense regions occurring more often than Sound B. Which has the higher pitch?
What is Sound A?
Evidence: From below Key Idea W.2c
300
On a wave diagram, how can you measure one wavelength?
What is the distance from crest to crest or trough to trough?
Evidence: From the image under Key Idea W.2d
400
When more of a ruler hangs over the table edge, what happens to its pitch?
What is a lower pitch?
Evidence: From W.2 Exp. #2
400
Which tuning fork had the lowest pitch, the longest or the shortest one?
What is the longest tuning fork?
Evidence: From W.2 Exp. #2
400
What sound quality is related to amplitude?
What is perceived volume or loudness?
Evidence: From Key Idea W.2b
400
Two sounds have equal volume but different pitches. What stays the same, and what differs?
What is the same amplitude and different frequencies?
Evidence: From images on page 29/page 3
400
On a wave diagram, how do you identify amplitude?
What is the vertical distance from the centerline to a crest or trough?
Evidence: From the image near the key idea W.2d
500
When less of a ruler hangs over the table edge, what happens to its pitch?
What is a higher pitch?
Evidence: From W.2 Exp. #2
500
Which tuning fork had the highest pitch, the longest or the shortest one?
What is the shortest tuning fork?
Evidence: From W.2 Exp. #2
500
If particles move farther during vibration, what happens to the disturbance density?
What is the disturbance becomes more dense?
Evidence: Near Key Idea W.2 B
500
Two sounds have the same pitch but different volumes. What stays the same, and what differs?
What is the same frequency and different amplitudes?
Evidence: From images on page 29/page 3
500
Wave diagrams are a graphical representation of what?
What is periodic motion?
Evidence: From key idea W.2d