Bats and Sound
Bats are nocturnal animals that have poor eyesight, but even in the dark of night, they can
navigate with remarkable precision. How do they do it? How are they able to locate food and
avoid trees and other obstacles? Bats use sonar to accomplish these tasks. They emit a high
pitched sound (much higher than humans can hear) and listen for the reflection of it. This enables
them to survive at night. Organize What You Learn
Use the graphic organizer to compare ideas about ultrasound and infrasound. In one circle of the
Venn diagram, list the properties and examples of ultrasound. Then in the other circle, list the
properties and examples of infrasound. In the area where the circles intersect, list the properties
common to both. Vocabulary: Check Point
Review the module vocabulary you've encountered so far and check that you have learned the
definitions for these words.
How well were you able to use concept mapping to discover the meaning of three of the
words? Try this example.
Waves have many properties. Two properties are related—frequency and wavelength. When
you increase the wavelength, the frequency becomes shorter. Here's how you can break down the concept map:
Definition: how long the wave is
Attributes: compound word containing length, property of a wave
Examples: the distance measured from crest to crest
Non-examples: frequency, amplitude
Relate to existing knowledge: wave, frequency, property Next, you will be working on a written assignment in which you will incorporate at least three of
these vocabulary words.
Vocabulary Words amplitude
augment
bizarre
crest
enhance
facilitate
frequency
instill
longitudinal
medium
parallel
period
perpendicular
transverse
trough
usage
wavelength Sounds
Not all sounds can be heard by humans. The range of the human ear is 20 Hz to 20,000
Hz. There are sounds that occur above and below this range. Some sound waves outside of this
range can be heard by other animals. These sounds, called ultrasound and infrasound, have
various life-saving applications. Ultrasound
Some frequencies are outside of the threshold of the human ear’s ability to detect; that is, they
are above 20,000 Hz. Sounds with such high frequencies are classified as ultrasound.
One of the properties of ultrasound is that it is able to penetrate within the human body. This
property has led to several applications in the medical field. It can be used to destroy scar tissue
and kidney stones. It is also used in medical imaging. This ultrasound image is of an expectant
mother's baby. Infrasound
Some frequencies are below the threshold of the human ear’s ability to detect, meaning they are
below 20 Hz. These sounds with such low frequencies are classified as infrasound.
Infrasound is be used to detect tornadoes and avalanches. If the amplitude is high enough,
sometimes infrasound can be felt as vibrations. Elephants send out infrasound frequencies to
communicate with one another across long distances. They can feel the vibrations in the ground. Ultrasound in Medicine
Ultrasound has several applications in the medical field. Because ultrasound waves are able to
penetrate into the body, they can be used for medical imaging. Ultrasonic imaging is used to
monitor the progress of babies in the womb. It can also be used to monitor someone's health. For
example, ultrasound is used to form images of the heart and in physical therapy to promote healing. Additionally, ultrasound has been found to eliminate scar tissue and can be used to treat
kidney stones. Animals and Ultrasound
Some animals use ultrasound to communicate or to gather information. Bats employ the use of
ultrasound to determine what objects are near them, much like a submarine uses sonar. Dolphins
also use ultrasound to detect their surroundings underwater. Similarly, dogs can hear ultrasound
waves, such as those emitted by a dog whistle. Assignment: Ultrasound and Infrasound Research Exploration
Ultrasound and infrasound are categories of sound with different frequencies. These categories
can be used for a variety of different purposes. For example, ultrasound is used to diagnose and
treat injuries in the medical field. In this research assignment, you will look at the industrial
applications of both categories of sound. Your essay should address the following things:
Define and describe in detail (and in your own words) ultrasound and infrasound.
Describe how ultrasound and infrasound are used in specific industrial applications and
provide detailed examples of both.
When conducting your research, remember to gather information from multiple sources. Start
your research by defining ultrasound and infrasound. Then look for how ultrasound and
infrasound are used in industrial applications.
The essay should be about 350-450 words, which is 1-1.5 typed pages, double-spaced, using 12
pt. font.

 

• 1494206640-8.14 Graphic Organizer.doc
• 1494206645-8.14 Data.docx

SuperTutor

(15)

Status NEW Posted 08 May 2017 01:05 AM My Price 15.00

-----------

Attachments

file 1494206652-Solutions file.docx preview (56 words )

S-----------olu-----------tio-----------ns -----------fil-----------e -----------Hel-----------lo -----------Sir-----------/Ma-----------dam----------- T-----------han-----------k y-----------ou -----------for----------- yo-----------ur -----------int-----------ere-----------st -----------and----------- bu-----------yin-----------g m-----------y p-----------ost-----------ed -----------sol-----------uti-----------on.----------- Pl-----------eas-----------e p-----------ing----------- me----------- on----------- ch-----------at -----------I a-----------m o-----------nli-----------ne -----------or -----------inb-----------ox -----------me -----------a m-----------ess-----------age----------- I -----------wil-----------l b-----------e q-----------uic-----------kly----------- on-----------lin-----------e a-----------nd -----------giv-----------e y-----------ou -----------exa-----------ct -----------fil-----------e a-----------nd -----------the----------- sa-----------me -----------fil-----------e i-----------s a-----------lso----------- se-----------nt -----------to -----------you-----------r e-----------mai-----------l t-----------hat----------- is----------- re-----------gis-----------ter-----------ed -----------onÂ----------- th-----------is -----------web-----------sit-----------e. ----------- H-----------YPE-----------RLI-----------NK -----------&qu-----------ot;-----------htt-----------p:/-----------/wo-----------rkb-----------ank-----------247-----------.co-----------m/&-----------quo-----------t; -----------\t -----------&qu-----------ot;-----------_bl-----------ank-----------&qu-----------ot;----------- -----------Tha-----------nk -----------you----------- -----------

Not Rated(0)

• Buy Answer