File Name: reflection refraction diffraction and interference of sound waves .zip
- reflection, refraction and diffraction
- Segment D: Sound: Diffraction and Interference
- Tour of the Electromagnetic Spectrum
- Reflection, Refraction, and Diffraction
reflection, refraction and diffraction
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Like any wave, a sound wave doesn't just stop when it reaches the end of the medium or when it encounters an obstacle in its path. Rather, a sound wave will undergo certain behaviors when it encounters the end of the medium or an obstacle. Possible behaviors include reflection off the obstacle, diffraction around the obstacle, and transmission accompanied by refraction into the obstacle or new medium. In this part of Lesson 3, we will investigate behaviors that have already been discussed in a previous unit and apply them towards the reflection, diffraction, and refraction of sound waves. When a wave reaches the boundary between one medium another medium, a portion of the wave undergoes reflection and a portion of the wave undergoes transmission across the boundary. As discussed in the previous part of Lesson 3 , the amount of reflection is dependent upon the dissimilarity of the two media.
Light waves across the electromagnetic spectrum behave in similar ways. When a light wave encounters an object, they are either transmitted, reflected, absorbed, refracted, polarized, diffracted, or scattered depending on the composition of the object and the wavelength of the light. Specialized instruments onboard NASA spacecraft and airplanes collect data on how electromagnetic waves behave when they interact with matter. These data can reveal the physical and chemical composition of matter. Reflection is when incident light incoming light hits an object and bounces off. Very smooth surfaces such as mirrors reflect almost all incident light.
Segment D: Sound: Diffraction and Interference
Foundation Science for Engineers pp Cite as. In the previous topic we considered the continuous interchange of potential and kinetic energy in oscillating systems where the total energy remains trapped or would remain trapped in the absence of damping. Figure Unable to display preview. Download preview PDF. Skip to main content.
Tour of the Electromagnetic Spectrum
Mastering Physics pp Cite as. A wave is a travelling disturbance which carries energy away from its source. Some waves, such as light waves and radio waves, can pass through an evacuated or empty space. In this way we receive energy from the Sun and other more distant stars. Unable to display preview.
Reflection, Refraction, and Diffraction
We head back to the recording studio to study interference and diffraction of sound waves. We investigate qualitatively how diffraction affects sound waves of various frequencies. We also explore how constructive and destructive interference patterns are created and what that means for what we hear coming from a sound source. Develop and use mathematical models to explain mechanical and electromagnetic waves as a propagating disturbance that transfers energy. Develop and use models to describe and calculate characteristics related to the interference and diffraction of waves single and double slits. Plan and carry out investigations to describe changes in diffraction patterns associated with geometry and wavelength for mechanical and electromagnetic waves.
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Take these specific vocabulary terms and create a concept map about waves. Make sure that you have connections between terms, not just arrows. There is no "Right" or "Wrong" as long as you can explain the relationship between the two. November 9th, Wave Practice back of Wave Puzzle :. November 9th, Wave Practice back of Wave Puzzle : 1. You were given the wavelength 1. If you are looking for the frequency use the yellow equation above.
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Sound waves are reflected from the surfaces like light waves, obeying laws of reflection; angle of incident is equal to the angle of reflection. This can be observed in a simple experiment in which a source of sound such as a transmitter sends sound at a certain angle to the normal to a wall and a higher sound is received from reflection at the same angle on another side of the normal. The regular reflection occurs from a surface if a whole part of an incident wavefront is reflected uniformly.
Light and sound both travel as waves, but they are not identical. The table summarises the similarities and differences between them:. Diffraction is the spreading out of waves when they pass through a gap. The extent to which this happens depends on the wavelength and size of the gap. Comparing light and sound waves Light and sound both travel as waves, but they are not identical.
- Подождите. Я же просил меня подбросить. ГЛАВА 59 Сьюзан протянула руку, и коммандер Стратмор помог ей подняться по лестнице в помещение шифровалки.
Его же не существует. - Коммандер, я должна… - попробовала вставить слово Сьюзан. И снова Стратмор нетерпеливым взмахом руки заставил ее замолчать.
Шифр еще не вскрыт. Время ввода - двадцать три тридцать семь и восемь секунд, однако время завершения дешифровки не указано. - Мидж полистала страницы. - Ни вчера, ни .
Да взять хотя бы его электронное имя. - Боже мой, Северная Дакота. Сокращенно NDAKOTA. Подумать .
Беккер обернулся и тотчас почувствовал, что краснеет. Он уставился на карточку с личными данными, приколотыми к блузке стоявшей перед ним женщины. Глава Отделения криптографии АНБ была не просто женщиной, а очень привлекательной женщиной.