HW_quiz_4_material

Ultrasonics

Ultrasonics

Refers to waves with frequencies above the audible range, providing a wide range of benefits to society.

Sonar

A device using sound to detect underwater objects, useful in fishing boats and warships.

Ultrasound

Utilized in various medical applications for diagnostic and surgical procedures.

Piezoelectric Transducer

Device used to produce and detect ultrasonic waves by converting electrical oscillations into mechanical vibrations and vice versa.

Frequency

The number of complete vibrations per second, determining the pitch of sound waves.

Target Words

Specific vocabulary words for the chapter used to assess and improve vocabulary knowledge.

Sound Perception

The range of hearing for humans and various animals, showing differences in hearing capabilities.

Applications of Ultrasound

Includes sonar for depth measurement, medical diagnostics, and industrial machining.

Dog Whistle

A whistle with a frequency too high for humans to hear but within the hearing range of dogs.

Bats

Animals that use ultrasonic frequencies for navigation and locating prey like flying insects.

Ultrasound

High-frequency sound waves that can be aimed along an artery to measure blood flow, used in medical diagnostics and procedures.

Sonogram

An ultrasonic picture of a fetus at an early stage in its development, commonly used by pregnant women to monitor growth.

Ultrasonic Cleaning

The use of ultrasonic waves in liquid tanks to clean objects like jewelry, surgical instruments, and machinery effectively.

Context Clues

Words or phrases in a sentence that help determine the meaning of a target word.

Surveyors

Individuals sent to map an area of land, ocean, or stars.

Components

Parts that make up a machine or system.

Revenue

Income generated, usually through sales or taxes.

Incidence

The number of times something happens.

Inhibit

Prevent growth or development.

Integrity

Good condition; soundness.

Isolationism

A policy of remaining apart from the affairs or interests of other groups, especially the political affairs of other countries.

Spherical

Shaped like a sphere; round.

Labor shortage

When there are not enough workers to fill job positions.

Visualize

Form a picture of something in the mind.

Accumulate

To gather or collect over time.

Convert

To change from one form to another.

Detect

To discover or identify the presence of something.

Enormous

Extremely large in size or amount.

Implement

To put a plan or decision into effect.

Inspect

To examine closely or officially.

Prohibitive

Serving to prevent or control.

Minimal

Of a minimum amount, quantity, or degree.

Monitor

To observe, check, or keep track of something.

Uniformity

The quality or state of being uniform or consistent.

Version

A particular form or variant of something.

Word Families

Groups of words that are related through a common base word and its different forms.

Spherical

Shaped like a sphere, round in shape.

Geodesic

Relating to or denoting the shortest possible line between two points on a sphere.

Dome

A rounded vault forming the roof of a building or structure.

Visualization

The act or process of interpreting visual information or creating mental images.

Medicinal

Relating to the use of medicine or drugs.

Opportunistic

Taking advantage of opportunities as they arise, often in a self-serving manner.

Overwhelmed

Defeated or overpowered by a strong emotion or force.

Plagiarism

The practice of taking someone else's work or ideas and passing them off as one's own.

Pollution

The presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects.

Ultrasonics

The branch of science and technology concerned with the use of high-frequency sound waves.

Collocation

Words that often appear together due to common usage or association.

Implement

To put a decision, plan, agreement, etc. into effect.

Monitor

To observe and check the progress or quality of something over a period of time.

Component

A part or element of a larger whole.

Integrity

The quality of being honest and having strong moral principles.

Option

A choice or decision available for choosing among two or more possibilities.

Essential

Absolutely necessary; extremely important.

Territorial

Relating to ownership or control over a specific area or region.

Vital

Absolutely necessary or important; essential.

Trivia

Pieces of information of little importance or value.

Deafness

The condition of lacking the ability to hear.

Transmission

The action or process of transmitting something.

Inhibit

To restrain, prevent, or hinder.

Accumulated

Gathered or collected over time.

Endangered

At risk of extinction or harm.

Extinction

The state or process of a species, family, or larger group being or becoming extinct.

Ivory

Hard white material from the tusks of elephants, used for carving and ornamentation.

Vocabulary

The body of words known and used by a person.

African Elephant

The elephant species native to Africa, known for being a symbol of African wildlife and facing threats such as the ivory trade and habitat loss.

Ivory Trade

The illegal trade of ivory tusks from elephants, which has led to a significant decline in elephant populations due to high demand and poaching.

Poaching

The illegal hunting or killing of animals, birds, or fish, which poses a serious threat to endangered species like the African elephant.

Convention on International Trade in Endangered Species (CITES)

An international agreement aimed at ensuring that international trade in specimens of wild animals and plants does not threaten their survival, placing the African elephant on its protected animals list to combat poaching and the ivory trade.

Habitat Loss

The gradual disappearance of natural habitats where animals like the African elephant live, often due to human activities like farming and settlement, posing a significant threat to their survival.

Ivory Trade Ban

A prohibition on the buying and selling of ivory, aimed at protecting elephants from poaching and extinction.

CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora)

An international agreement between governments to ensure that international trade in specimens of wild animals and plants does not threaten their survival.

Conservation

The act of protecting and preserving the environment, including wildlife and their habitats, to prevent extinction and promote biodiversity.

Poaching

Illegal hunting or capturing of wild animals, especially for commercial purposes like selling ivory.

Habitat

The natural environment where an organism or species lives, grows, and thrives.

Sustainability

Meeting the needs of the present without compromising the ability of future generations to meet their own needs.

Enforcement

The act of ensuring compliance with laws, regulations, or agreements, often involving monitoring, penalties, and control measures.

Extinction

The complete disappearance of a species, where there are no living members left.

International Trade

The exchange of goods, services, and resources between countries, often regulated by trade agreements and laws.

Wildlife Conservation

The practice of protecting wild animals and their habitats to ensure their survival and promote ecological balance.

Vocabulary

Words and their meanings are essential for understanding texts. Matching target words with their definitions helps in comprehension.

Committed

Willing to work very hard at something.

Registration

The act of recording names and details on an official list.

Ignorance

Lack of knowledge or information about something.

Resolution

A formal decision or statement agreed upon by a group of people.

Accommodate

To accept someone's opinions or needs and try to do what the person wants.

Compensate

To pay someone money because the person has suffered injury, loss, or damage.

Suspend

To officially stop something from continuing, especially for a short time.

Recovery

The process of returning to a normal condition after a period of trouble or difficulty.

Enforcement

Making people obey a rule or law, especially by punishing those who do not obey it.

Pose

To exist in a way that may cause a problem, danger, or difficulty.

Irrelevant

Not useful in or not relating to a particular situation.

Financial

Relating to money, or the management of money.

Welfare

Money paid by the government to people who are poor, do not have jobs, are sick, etc.

Appendix

A part at the end of a book or paper containing additional information.

Ignorance of the law

Not knowing the law is not a valid excuse for not following it.

Ethnic holidays

Celebrations like Cinco de Mayo and Chinese New Year that represent different cultures.

Monarchies

Old royal families or systems of government led by a monarch.

UFO phenomena

Unexplained events related to unidentified flying objects.

Voter registration

Process where U.S. citizens sign up to be able to vote.

Aircraft numbering

U.S. planes start with N, Canadian with C, and British with G.