Biology, 31.01.2022 01:40 a897coleman

1. How are sound waves created? 2. What is the difference between music and noise?
3. How do humans and other animals produces sound?
4. What are the three perceptual characteristics of sound? describe each.
5. What are the the three physical characteristics that correspond to the perceptual attributes?
6. What is the audible range of frequency for humans?
7. What is infrasound? ultrasounds?
8. Describe each part of the human ear.

Answers: 2

Show answers

Answers

Answer from: alen919

Ans 1 - Sound is produced when an object vibrates, creating a pressure wave. This pressure wave causes particles in the surrounding medium (air, water, or solid) to have vibrational motion. As the particles vibrate, they move nearby particles, transmitting the sound further through the medium.

Ans 2- Music is a sound that produces a pleasing sensation. It is produced by nature, musical instruments, human voice, etc. Noise is an unwanted and unpleasant sound produced by horns of vehicles, by machines, etc.

Ans 3 - Humans have elastic ligaments called vocal cords attached to the bones in the throat. When air is passed over these cords, they vibrate and make sound. ... Marine mammals also make many sounds by vibrating elastic ligaments (vocal cords) in the larynx.

Ans 4 - The physical characteristics of sound waves influence the three psychological features of sound: loudness, pitch, and timbre. Loudness depends on the amplitude,or height, of sound waves. The greater the amplitude, the louder the sound perceived. Amplitude is measured in decibels.

Ans 5 - The physical characteristics of sound waves influence the three psychological features of sound: loudness, pitch, and timbre. Loudness depends on the amplitude,or height, of sound waves. The greater the amplitude, the louder the sound perceived.

Ans 6 - about 20 Hz to 20 kHz

Humans can detect sounds in a frequency range from about 20 Hz to 20 kHz. (Human infants can actually hear frequencies slightly higher than 20 kHz, but lose some high-frequency sensitivity as they mature; the upper limit in average adults is often closer to 15–17 kHz.)

Ans 7 - Explaining the terms infrasound and ultrasound, used for vibrations that we cannot hear. ... Beyond what we can hear there is: Infrasound, where the rate of vibration is too low for us to hear. Ultrasound, where the rate of vibration is too high for us to hear.

Ans 8 - Anatomically, the ear has three distinguishable parts: the outer, middle, and inner ear. ... The function of the outer ear is to collect sound waves and guide them to the tympanic membrane. The middle ear is a narrow air-filled cavity in the temporal bone.

1. How are sound waves created?

2. What is the difference between music and noise?
3. How do human

Answer from: Quest

six grader is what i am ssorry

Answer from: Quest

Prompt: write about whether or not you plan to register to vote when you are 18 and what political party preference (if any) you will disclose. explain the reasons for your decisions.

Another question on Biology

Biology, 21.06.2019 19:00

The skeletal system performs a variety of functions that are crucial to maintaining life processes. what function is performed in the bone marrow, but not in the ossified bones of the skeleton? a oxygen transportation c mineral storage b. muscle attachment d red blood cell production

Answers: 1

Answer

Biology, 22.06.2019 03:00

To answer this question, researchers studied populations of the dusky salamander (desmognathus ochrophaeus) living on different mountain ranges in the southern appalachian mountains. the researchers tested the reproductive isolation of pairs of salamander populations by leaving one male and one female together and later checking the females for the presence of sperm. four mating combinations were tested for each pair of populations (a and b)â€”two within the same population (female a with male a and female b with male b) and two between populations (female a with male b and female b with male a). the proportion of successful matings for each mating combination was measured. for example, when all the matings of a particular combination were successful, the researchers gave it a value of 1; when none of the matings were successful, they gave it a value of 0. then the researchers calculated an index of reproductive isolation that ranged from 0 (no isolation) to 2 (full isolation). the reproductive isolation value for two populations is the sum of the proportion of successful matings of each type within populations (aa + bb) minus the sum of the proportion of successful matings of each type between populations (ab + ba). the table provides data for the geographic distances and reproductive isolation values for 27 pairs of dusky salamander populations.

Answers: 1

Answer

Biology, 22.06.2019 09:40

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes

Answers: 1

Answer

Biology, 22.06.2019 13:10

Which of the following is not a benefit of genetically modified foods? a.pest-resistant crops b.herbicide-resistant crops c.plants that do not require water?

Answers: 2

Answer

You know the right answer?

1. How are sound waves created? 2. What is the difference between music and noise?
3. How do...

Questions