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?
100
Frequency tells how many cycles or vibrations happen in what time?
What is one second?
100
What is one complete repeating pattern of a wave called?
What is a cycle?
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?
100
In a sound-wave diagram, where are particles closest together?
What is at the crest, the highest-density region?
200
Why can dogs hear a dog whistle that people cannot?
What are frequencies higher than humans can hear?
200
Which sound property is determined by frequency?
What is pitch?
200
What does the period of a wave measure?
What is the time to complete one cycle?
200
Two sounds complete the same number of cycles in the same time interval. How do their frequencies compare?
What is the same frequency?
200
In a sound-wave diagram, where are particles farthest apart?
What is at the trough, the lowest-density region?
300
What happens to the range of frequencies people can hear as they age?
What is a smaller hearing range?
300
What is the highest frequency listed that humans can hear?
What is 20,000 hertz?
300
What does amplitude measure for a vibrating particle?
What is its distance from its original position during vibration?
300
Sound A has dense regions occurring more often than Sound B. Which has the higher pitch?
What is Sound A?
300
On a wave diagram, how can you measure one wavelength?
What is the distance from crest to crest or trough to trough?
400
When more of a ruler hangs over the table edge, what happens to its pitch?
What is a lower pitch?
400
Which tuning fork had the lowest pitch, the longest or shortest one?
What is the longest tuning fork?
400
What sound quality is related to amplitude?
What is perceived volume or loudness?
400
Two sounds have equal volume but different pitches. What stays the same, and what differs?
What is the same amplitude and different frequencies?
400
On a wave diagram, how do you identify amplitude?
What is the vertical distance from the centerline to a crest or trough?
500
When less of a ruler hangs over the table edge, what happens to its pitch?
What is a higher pitch?
500
Which tuning fork had the highest pitch, the longest or shortest one?
What is the shortest tuning fork?
500
If particles move farther during vibration, what happens to the disturbance density?
What is it becomes more dense?
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?
500
Wave diagrams are a graphical representation of what?
What is periodic motion?