a. soft objects c. vibrating objects b. radio stations d. objects under pressure. It is found in compact bones of adults. A soft sound has a _____ amplitude and a loud sound has a _____ amplitude. c 1540 ms −1. A soft "g" sounds more like a "j," as in the words large, general, and giant. faster b.) MCQ on Hot Chamber and Cold Chamber Die Casting 3. whistle2 Which of the following produces the loudest soundC. Examples of these sounds are - The ticking of a clock A person's heartbeat These are generally quiet and not harsh. Soft is the strain when Zephyr gently blows, And the smooth stream in smoother numbers. a type of energy you can hear. a. When you move away from a loud sound it becomes softer. A. steel in cabinet B. water in the ocean C. air in your classroom C. water in a swimming pool 8. Which of the following objects will produce sound? d. latticework structure that adds strength to the bone. To hear a soft murmur or bruit, which of the following may be necessary? Question.15 Sound is produced due to a vibratory motion, then why a vibrating pendulum does not produce sound? the sound of something breaking noisily into many pieces. Answer. C. telephone D. bomb 40. . Explanation: When two objects vibrate at different frequencies, a fluctuating sound is heard, (loud-soft-loud). how high or low and sound is. 18 27. PDF. Scream. Baby girl is likely to have minimum frequency. through solids, liquids and gases. D. objects under pressure. Answer: Voice box (larynx) Question 5: Name the organs of hearing in our body. Question.16 Prove that: v = fλ, where the symbols have their usual . Radio stations c. Vibrating objects d. Objects under pressure 2. A. C. high pitch 3. A hard "g" sounds almost like a "k," as in the words great, good, and pig. Sound produced by man is through a voice box called larynx, it consists of two flap - like ligaments called vocal cords with a narrow slit spacing them. Sound can travel through solids, liquids and gases. 2. Now suspend a small thermocole ball touching the rim of the tumbler (Fig.17). Question 2. A loud clap of thunder causes a window to vibrate. SURVEY. Which of the following produces soft sound - 13875674 eramiexymhine11 eramiexymhine11 26.04.2021 Science Senior High School answered Which of the following produces soft sound a. puzzle. 1. A. how loud or soft a sound is. MCQ on Metal Casting Processes Equipment 2. These sounds are also called alveopalatal or post alveolar. Use some or all of the icons to have students sort the types of sounds. A. steel in cabinet B. water in the ocean C. air in your classroom C. water in a swimming pool 3. View quiz 1 science.docx from Science 1 at University of Perpetual Help System DALTA - Las Piñas. (ii) Electric Flux sharing is not properly done in primary and secondary coils. Answer: Voice box (larynx) Question 5: Name the organs of hearing in our body. The objects which are vibrating with a certain frequency produces sound. Which of the following is an example of energy being transferred by sound waves? A palatoalveolar sound is produced by placing the tongue blade close to the hard palate behind the alveolar ridge. Sound waves will be absorbed by your hand when you pluck the rubber band. Which of the following produce sound? Tags: Question 7. Q.36. a.) They are pleasant to listen to. If an echo arrives 143 micros after the pulse that produced it was emitted, it should be located at a depth of _____ cm. Sound is produced by the vibration of the body. Bronchial sounds Sneezing Coughing Vesicular breathing sounds. MCQ on Production Process - I-----Module 1: ----- 1. C . Which of the following produce sound? Which of the following affect the speed of sound? E.g. Sound requires a material medium for its propagation and can be transmitted. a 10 Hz. a short loud noise, for example the sound of a door closing with a lot of force. Question 6: Name that part of ear which vibrates when outside sound falls on it. output display by a monitor is a softcopy output. Answer: Sound is produced when an objects vibrates. Loud Sounds. Let's discuss the characteristics of sound waves like amplitude, frequency, wavelength, and timbre. [SAII-2010] Answer. a. low pitch b. high pitch c. low energy d. A and C 26. b 1650 ms −1. a. Expert Answer. - When you hit a drum lightly, the skin of the drum makes a small vibration and you hear a soft sound. Which of the following produces a soft sound? If you play an instrument lightly, it gives a soft sound. 5. A) There is no incentive to sell at a price below the market price. Memorize flashcards and build a practice test to quiz yourself before your exam. how high or low and sound is. The distance between the peaks of the waves is called the wavelength. wavelength. D) All of the above answers are correct. Because it is a low-pitched sound, you may not hear it unless you use the bell of your stethoscope. This can be understood by the following example. Soft sounds. Bang. Because of its vibration, it will produce some pressure difference giving rise to a sound wave. Answer: 1. Term. The pitch of a sound depends on the frequency while loudness of a sound depends on the amplitude of sound waves. A. drum set B. jet C. buzzing bee D. train. . Register Now. FALSE - Intense sounds are simply sounds which carry energy outward from the source at a high rate. Vibrating objects. a. longitudinal wave b. transverse wave c. standing wave d. shock wave 24. a. soft objects b. radio stations c. vibrating objects d. objects under pressure 23. MCQ on Casting 1.Which of the following are typically made of sand, plaster, ceramics and similar materials and generally are mixed with various binders? The Blue Whale: As well as the biggest, the blue whale is also the loudest animal in the world. the sound of something breaking noisily into many pieces. flows; but when loud surges lash the sounding shore, The hoarse, rough verse should like the torrent roar: A. Assonance and consonance. Compared to the speed of light, sound travels _____. D . This phenomenon is known as beating. Recommended use is to print in color, laminate, and cut sound icons. FALSE - Intensity is a power/area relationship and as such the units are typically Watts/meter 2.The Watt is a unit of power and the meter 2 is a unit of area.. b. B. radio stations . Which of the following descriptions does NOT apply to normal vesicular breath sounds? answer choices . A. lower pitch 4. But most of its echolocation frequencies are lower than 20 kilohertz. qwpenguin These sounds are produced by musical instruments, clock, dripping water etc. Soft Sounds. a. soft objects b. radio stations c. vibrating objects d. objects under pressure 25. Soft sounds, contrarily, are produced by a small amount of energy being converted to sound, which decreases their volume. A. soft objects B. radio stations C. vibrating objects D. objects under pressure 7. The interference of two sound waves of similar amplitude but slightly different frequencies produces a loud-soft-loud oscillation we call beats. B) It will not sell any output at all if it tries to price its product above the market price. Answer: Sound is produced when an objects vibrates. Other ways to say this are: 1.54 km/s = 1,540 m/s = 154,000 cm/s = 1.54 mm/µs Aside: Sound travels approximately 1 mile per second in soft tissue. Which of the following would be most likely to transmit sounds the best . B. radio A. soft objects stations D. objects C. vibrating objects under pressure 2. C. vibrating objects . Because of its vibration, it will produce some pressure difference giving rise to a sound wave. These are the specific sounds which are soft and gentle and experience no considerable force as such. Which of the following sound frequencies would include diagnostic ultrasound? Mandarin Chinese) the same sound is treated as one of the vowels. c standing waves will be produced if they are traveling in the same direction but out of phase. Vibrate the tumbler by striking it. Anything that produces this kind of vibration will be heard. Which of the following would be most likely to transmit sound the best? True. It is thought that the closure of the aortic valve produces the second heart sound (S 2). Answer: Our ears are the organs of hearing in our body. 900 seconds. The human ear can sounds between about 20 and 20,000 vibrations per second. The more decibels, the louder the sound. Scientists often draw sound waves as wavy lines, like these graphs. A. play B. play. Here it is: Speed of Sound in soft tissue = 1.54 km/s. Tags: Question 15. The objects which can produce sound are vibrating objects because when an object vibrates, it causes movement in the surrounding air molecules, and when the air molecules bump into each other because of the movement, it vibrates, and that produces the sound. Which of the following produce sound? The rubber band will vibrate slower and produced a lower pitch. Volume is perceived by small hairs in the ear vibrating in reaction to sound waves. 900 seconds. Sound is a form of energy. answer choices . Which of the following refers to the soft sound produced by the air filling in the alveoli? Beep. soft objects B. radio stations C. vibrating objects D. objects under pressure 2. Resonance occurs when _____. But whether or not we can hear the sound depends on the two properties of pitch and volume. The diastolic reading is the _____ Korotkoff sound. Vibrating objects. The sound changes in Phase II, to a swishing sound or a soft murmur. Have a glance at the MCQ of Chapter 13 Science Class 8 and cross-check your answers during preparation. Which of the following would be most likely to transmit sound the best? The disturbance then travels in the medium in form of waves. You will notice that whispering makes a soft sound but shouting for a friend across a playground makes a loud sound. Faster b. a. The sound you hear will increase in volume if the rubber band is pulled tightly. The sound moves through a medium by alternately contracting and expanding parts of the medium it is travelling through. a 1450 ms −1. b 10 kHz. Bang. Sounds are termed vocal when produced in the respiratory system and mechanical when produced by mutual contact of body parts or by contact with some element in the environment. Answer: CDGJ. Percussion players produce more or less volume by changing bow pressure and speed. It makes blood cells. sound production, in animals, the initiation of sound as a means of information transmission. They are most commonly sound waves characterized by a high amplitude of movement. d 1230 cms −1. a. radio stations b. vibrating objects c. soft objects d. objects under pressure e. none of the . Its mating call reaches levels up to 188 dB and can be heard for hundreds of . 10. Example: Take a vertical metal strip with its lower end fixed. When cathode rays strike a metal target of high melting point with a very high velocity then X-rays are produced. There are two palatoalveolar sounds in English: [ʃ] voiceless (shin) [ʒ] voiced (azure) Practice MCQ Questions for Class 8 Science with Answers b drum set c. jet d. whistle 1 See answer Advertisement A soft sound, like a whisper, measures around 15 to 20 decibels. They are temporary in nature and vanish after use. Therefore, they manipulate sound through a _____mechanism. a type of energy you can hear. ther medium there is no bodily. keyboard. Sound energy travels in a straight line in one direction. This compression and expansion create a minute pressure difference that we perceive as sound. If a second pulse was emitted 13 micros before the arrival of this echo, it will be placed incorrectly at a depth of _____ cm. If something goes bang, it makes a noise like this. The light hits a lens and refracts, changing the angle of the light. Which of the following produces the loudest sound? Start studying the Physics test Waves and Sound flashcards containing study terms like compared to the speed of light, sound travels. Minimal expiratory component c.Heard primarily over lung parenchyma d. High pitched as compared with tracheal breath sounds. a very loud high noise. . A loud sound, such as a jet engine, measures about 150 decibels. Colin hits a drum, causing the small bones in his friend's ear to vibrate. Now bang the spoon on the tumbler and hear the sound produced again. This is a good thing since it allows us to perform real time imaging! SURVEY. Excerpt B an excerpt of Beethoven's Moonlight Sonata for piano, exemplifies soft dynamics. If something goes bang, it makes a noise like this. In soft tissue, which of the following PZT crystals will produce the lowest SPTA intensity at the end of the near zone? When we speak, air is forced out (exhaled). Question 4: Name the sound producing organ in humans. Some animals that can produce a very soft sound even though they are very large animals the whale produces a load but very soft animal. Which of the following two excerpts uses soft dynamics? The less energy the sound waves or vibrations have, the softer the sound you hear. answer choices. FALSE - Intense sounds are simply sounds which carry energy outward from the source at a high rate. answer choices . a. D. vacuum Explanation: 1. Question 3. If the wave velocity is 24 m s-1, calculate: (i) the number of waves produces in one second , and (ii) the time in which one wave is produced. D . See how far the ball is displaced. As it vibrates, i.e. Closure of the mitral valve is thought to produce the first heart sound . 6 mm diameter, 6 MHz frequency b. The frequency of the vibrating pendulum does not lie within the audible range (20 Hz to 20,000 Hz) and hence it does not produce audible sound. Beep. Sound energy travels in waves that need a solid, liquid or gas to carry. And a loud or soft sound is identified by its volume, another property of sound. into vowels and consonants; for example, the usual sound produced at the beginning of the word 'red' is felt to be a consonant by most English speakers, but in some other lan- guages (e.g. Listening to loud sounds over long periods of time can be damaging to the ears and decrease . A. steel in cabinet . a short loud noise, for example the sound of a door closing with a lot of force. a.Soft with low intensity b. B. vibrating objects. FALSE - Intensity is a power/area relationship and as such the units are typically Watts/meter 2.The Watt is a unit of power and the meter 2 is a unit of area.. b. d 10 MHz. Sound energy travels in a straight line that switches directions periodically. Check Your Understanding 2. a. D. moving air to and from the exchange surfaces E. protecting from dehydration by filtering water out of the air So, the correct choice is (D). Which of the following produce sound?A. c 100 kHz. B. water in the ocean . The propagation speed of sound through soft tissue is. Which among the following, is not a cause for power loss in a transformer- (i) Eddy currents are produced in the soft iron core of a transformer. The objects which are vibrating with a certain frequency produces sound. answer choices. This is true for all sound waves. Is flute a soft sound object? Following are 10 examples of loud sounds made by different objects and instruments. It has _____. Compared to a thin string of the same length and tightness a thick string produces sounds of _____. B. transverse wave 5. Why does sound become weaker or fainter as it moves away from the observer? An opera singer sings a high-pitched note, causing a glass to break. Whispering and a cat's purr are soft sounds. Which of the following best describes a high frequency sound? 208. A. soft objects B. radio stationsC. The tongue tip may feel as if it is just barely behind the alveolar ridge. So ultrasonic frequencies may not be too important in the oil bird's life, according to the International Journal of Avian Science. 3. Banging of a hammer and a car's horn are examples of loud . 2. Which of the following is a function of the glottis? 1. The light hits a mirror and is absorbed, then it is emitted at a different wavelength. C) There are a very large number of perfect substitutes for the seller's product. Resonance occurs when _____. density, elasticity, and temperature . Pitch is dependent on the change in the frequency. Question 6: Name that part of ear which vibrates when outside sound falls on it. Length of vocal cord in males is 20mm and females is 15mm. Lorem ipsum dolor sit amet, consectetur adipiscing elit.Morbi adipiscing gravdio, sit amet suscipit risus ultrices eu.Fusce viverra neque at purus laoreet consequa.Vivamus vulputate posuere nisl quis consequat. a. Check Your Understanding 3. High-pitched sounds have short wavelengths, which means that the peaks are close together. How fast does something have to vibrate to produce sound? Which of the following produces a soft sound?A. c. tough layer of connective tissue surrounding a bone. Selina solutions for Concise Physics Class 10 ICSE Chapter 7 Sound Exercise 7 (A) [Pages 154 - 155] The wavelength of waves produces on the surface of water is 20 cm. Answer: Our ears are the organs of hearing in our body. B. Alliteration and onomatopoeia. Amazingly, many musicians, who have been trained are capable of detecting a difference in frequency between two separate sounds that are as little as 2 Hz. We have compiled the NCERT MCQ Questions for Class 8 Science Chapter 4 Materials: Metals and Non-Metals with Answers Pdf free download covering the entire syllabus. to move back and forth quickly. A. steel in cabinet B. water in the ocean C. air in your classroom C. water in a swimming pool 3. Which of the following would be most likely to transmit sound the best? Which of the following produces a soft sound? will greatly increase your ability to hear soft sounds. Hard copy output The sounds of Korotkoff are produced by: A) laminar flow of blood . I. 4,96,741. Which of the following objects will produce sound? Tags: Question 7. Simple rules can help to determine whether the . SURVEY. Which of the following produce sound? C. air in your classroom C. water in a swimming pool. Loud sound has a high volume while soft sound has a low volume. Answers: 3 on a question: Correct answer 1. Resonance occurs when A. someone pushes an object. 39. Question 1. D. duty factor refers to the amount of time sound waves are being produced. b. location for red blood cell production. Smash. The rubber band will vibrate faster and produce a higher pitch. This exhaled air forces the vocal chords to vibrate due to which sound is produced. 1. Hear the sound produced. Question 4: Name the sound producing organ in humans.
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