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The property of any waves - sound waves, radio waves (including light waves) - that allow them to penetrate is their frequency, relative to the absorption frequency of the material you want them to penetrate.
If you have a material which resonates at a range of frequencies from 30kHz - 60KHz, for example, and you direct your sound wave of 40kHz at it, the molecules in the material will absorb a lot of the energy of the wave. It''s like pushing a child on a swing at the correct (resonant) frequency to get the child swinging.
Essentially, you are converting the energy of your sound in to heat in the material, and the sound wave does not penetrate; it gets absorbed.
At much higher or lower frequencies (a few Hz or 100's kHz) the material is unable to react to the waves (it's like pushing the child on a swing 100,000 times a second. The child won't swing, she'll just jiggle very slightly, absorbing almost no energy)
The energy is not absorbed by the molecules in the material, and passes through, penetrating deeper in to the material.
What else can I help you with?
What is a picture of the inside of the human body produced by ultrasound?
The answer is a sonogram
What medical technique used sound wave pulses and their reflections to map structures and organs inside the body?
Ultra Sound
Why doesn't Styrofoam sweat?
Styrofoam doesn't sweat because it is a closed-cell foam, which means it has a structure that traps air and prevents moisture from passing through. This insulation property keeps the temperature inside stable and minimizes condensation. Unlike porous materials, Styrofoam does not allow water vapor to penetrate or accumulate on its surface, thus avoiding the sweating effect associated with other materials.
Why main switch use in the rest of the circuits in the house?
A main switch controls the entry of power into the property. Inside the property there may be several circuits that are individually switched
What is ultrasound radiation?
At this time in medical research, no effects of radiation have been noted due to medical ultrasound. Biological effects have been seen, but these are almost exclusively caused purposely in labratories designed with the sole intent of testing these effects. The current equipment and regulations will not allow biological destruction of human tissue.
What is a sentence for ultrasound?
An ultrasound is a medical test that used sonar to look inside the body. Here are some sentences.My doctor told me the results of my ultrasound.The ultrasound showed us a picture of her baby inside her womb.Ultrasound technology allows us to look into the body without surgery.
Is it true that you can do an ultrasound can show that your not pregnant even if you are pregnant?
Ultrasound can visualize fetus inside with no errors.
What is used to see a baby inside you?
Ultrasound
What property allows certain metals to attract to each other?
The property that metals use to attract is known as Electron which is inside the metal. Hope that helped
How Can you use ultrasound?
To "see" inside of people and things.
What do you mean by tangible product?
No object can penetrate its inside
What is a picture of the inside of the human body produced by ultrasound?
The answer is a sonogram
How does an ultrasound work to create images of the inside of the body?
Ultrasound uses high-frequency sound waves to create images of the inside of the body. These sound waves bounce off tissues and organs, creating echoes that are then converted into visual images by a computer. This allows healthcare providers to see detailed images of internal structures without the need for invasive procedures.
What are uses of ultrasound?
Ultrasound can be used for a lot of purposes. This includes cleaning machinery, teeth and jewellery, and inspecting pipes. It is also used for looking inside our bodies such as an ultrasound scan.
How is ultrasound useful?
Ultrasound is used to see inside different parts of the body without having to withstand harmful radiation. It is primarily used to look inside a pregnant womanâ??s womb.
What is 7x 7y as the distributive property?
To expand the expression 7x(7y) using the distributive property, you distribute the 7x to both terms inside the parentheses. This results in 7x * 7y = 49xy. The distributive property allows you to multiply each term inside the parentheses by the term outside the parentheses, simplifying the expression.
Where is the inside of a property line?
Inside of a property line would be the area that the perimeter of the property encloses. If you draw a rectangle on a piece of paper the area inside the lines would be the same as the inside of a property line.
