Moncada‚ Angelica De La Salle Lipa Grade 10 PHYSICS Why did humans can’t hear the ultrasound unlike the dogs? Ultrasound is a cyclic sound pressure wave with a frequency greater than the upper limit of the human hearing range. Ultrasound is thus not separated from "normal" (audible) sound based on differences in physical properties‚ only the fact that humans cannot hear it. Although this limit varies from person to person‚ it is approximately 20 kilohertz (20‚000 hertz) in healthy‚ young
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Ultrasonic waves are sound waves with frequencies high about human hearing and short wave lengths. Sound waves have frequencies about 20‚000 to 100‚000. Also Ultrasound frequencies range from 20 kHz (the upper range of hearing for a young adult human) through 150 kHz (audible to some bats and other creatures)‚ right up to 10 MHz (used in some medical treatments and industrial cleaning applications). While these frequencies overlap with those of radio waves‚ they are different because sound and ultrasound
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played in major key which is meant to make audience feel happy that they are watching the program‚ the motif is repeated but changed to keep the listener entertained during the opening credits. As the cartoon begins there is woodwind instrument which sounds like a flute playing a melody over a piano playing arpeggio this gives the impression of it being early morning as it’s very upbeat and cheerful. Before the main characters appear on the cartoon the flute plays a trill this is used to build anticipation
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are five types of signals or displays: sound or vibration‚ visual‚ chemical‚ touching‚ and electric. Often‚ the most effective way for an animal to give information is by a sound display. Sound spreads rapidly‚ and other animals in the vicinity can readily tell from what direction it comes. The most common sounds are vocalizations made by vertebrates (animals with segmented spinal columns)‚ such as birds‚ reptiles‚ and mammals. A small bird may vocalize a sound of fear in the presence of a predator
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The four fundamentals of film are mis-en-scéne‚ cinematography‚ editing and sound. The mis-en-scéne includes the setting‚ costumes‚ make-up‚ lighting and staging. It is defined as “the visual elements on the stage and includes depth‚ height‚ and width. Although the precise meaning of mise-en-scène with regard to film is disputed‚ it generally refers to what is seen in the film frames throughout the film or to what is seen in one single shot or frame.” The next element is cinematography and that is
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babies. They cannot speak intentionally‚ but they just make sounds. There are reflexive vocalization‚ cooing and laughter during this stage. They make sounds for their physiological need and basic desire. When they are hungry‚ sick‚ or uncomfortable‚ they make a sound. There is vocal play and babbling‚ too. In this time‚ they make a sound which can be heard as language. But‚ they do not make a sound intentionally. Actually‚ when they make a sound which can be heard as language‚ they are just training
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turn to neurochemistry‚ not that I can say I’m an expert. I’ve been perusing ScienceDaily and TedTalks for some ideas (links at the bottom). There are several angles that can be taken to try and explain why people enjoy music and certain other sounds. The first and most obvious approach is the psychological A lot of music can and does derive its emotional impact from cultural associations. For example: bluegrass is‚ for many‚ easy to associate with a simplistic or rustic lifestyle because of the
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consisted of us doing sound tracks and still images. We were placed into groups to do these. A sound track is when you put together sounds to do with a specific topic‚ this topic being Roses of Eyam‚ and create an ongoing sound until you reach the finish. A still image is what when you get given a subject to make a picture out of and you freeze into that picture and the audience have to guess what the still image is of. Some groups were better than others in doing the sound tracks. What worked well:
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gas has mass it can support oscillations and waves. 2.2 Traveling Sound Waves in Air When a cone of a speaker moves out‚ it compresses air next to is and imparts an outward velocity to the air molecules around it‚ in addition to the random thermal velocities of air molecules. The molecules nearest to the speaker will collide with those near them and impart those molecules into motion‚ propagating away from the speaker producing sound. Similar statements apply to when the cone is moved in as well. If
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Even though the sound of speech can’t be seen by human eyes‚ it could still be sensed by one of the human senses which is the ears. And even though the smell of coffee can’t be seen‚ it could still be sensed by one of the human senses which is the nose. So the counterexamples given in my objection regarding the sound of speech and the smell of coffee are no longer valid if the interpretation of “invisible” becomes
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