Sound is a type of wave that carries energy through vibrations in matter, such as air or water. Waves, on the other hand, are disturbances that transfer energy through a medium. Sound is a type of mechanical wave, meaning it requires a medium to travel through, while waves can also be ...
The researchers lowered a loud speaker that sends out low frequency sound about 1000 meters beneath the ocean. Scientists at the site send sound waves into the ocean. Radio sending equipment attached to some of the sea animals help the researchers keep track of the animals’ movements. If sea...
When sound waves enter the cochlea, which is really a tube coiled around, they set a membrane into a back and forth motion and cause a new wave. This is something like the way in which high and low sounds are produced by a flute or whistle. The high sounds are produced when the air...
In other words, speech recognition is possible through analyzing all sound waves which are analogue signals, through the sine curve, and then analyzing the digital data using its frequency. Not many people know that computer music they all enjoy is based on this kind of mathematical theory. 65...
Question 3: Which of the following waves does not require a medium for propagation? A) Sound waves B) Water waves C) Light waves D) Seismic waves Answer:C) Light waves Question 4: The ratio of the velocity of light in vacuum to the velocity of light in the given medium is known as...
Because they can hear the sound waves.4. By listening to its chirps. /By counting its chirps( forfourteen seconds).5. We can predict the weather by looking up, lookingaround and listening. /We can know the weatherfrom outdoor things. /Some ways to predictweather. /Some ways of ...
[听力原文]18-20 Under proper conditions, sound waves will be reflected from a hillside or other such obstruction. Sound travels at the speed of about one-fifth of a mile per second. If the hill is eleven hundred feet away, it takes two seconds for the sound to travel to the hill and...
Under proper conditions, sound waves will be reflected from a hillside or other such obstruction (障碍). Sound travels at the rate of about one-fifth of a mile per second. If the hill is eleven hundred feet away, it takes two seconds for the sound to travel to the hill and back. ...
Chapter 9: The Nature of Sound Q. 1: C. Sound vibrations are in the form of longitudinal waves, not transverse waves (pp. 147–8 and Figure 9.2). Q. 2: D. Sound waves are propagated by the elastic vibration of particles about their mean positions in simple harmonic motion, and not ...
{{I}} Questions 11-13 are based on the following passage about a science project. You now have 15 seconds to read the questions 11-13.{{/I}}Which of the following statements is TRUE A.Sound travels faster through cold water than warm water.B.By transmitting sound waves, the scientists...