S407/408 by Ma Ying https://padlet.com/ma_ying1_1/ngauees3v1u3 en-us 2020-01-06 00:12:00 UTC 2025-11-19 15:30:40 UTC hello@padlet.com How is sound produced? What types of wave is sound? ma_ying1_1 https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427776687 Akash: Sound is produced by vibrating energy sources that emit longitudinal waves which are waves in the form of a series of compressions and rarefactions in a medium.

Onn Kit: Sound is produced via the vibration of particles. Sound is a longitudinal wave, which transmits energy without the bulk movement of the media. BRUH]]> 2020-01-06 00:12:13 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427776687 How is sound transmitted? How does the speed differ in different medium? ma_ying1_1 https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427791688 Through mediums. In denser mediums, sound travels faster, for example solid mediums, while in a less dense medium sound travels slower.
Speeds of sound in solids> speed of sound in liquids> speed of sound in air
In solids the atoms are more closely packed together as compared to liquids and gases.Hence sound travels the fastest in solids

]]> 2020-01-06 02:31:53 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427791688 Suggest a method to measure the speed of sound in air? ma_ying1_1 https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427791757 v=d/increase in t
Speed of sound in air is about 330m/s]]> 2020-01-06 02:32:36 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427791757 What determine the loudness and pitch of a sound? ma_ying1_1 https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427791855 Amplitude and wavelength]]> 2020-01-06 02:33:42 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427791855 What is ultrasound? How can it be used? ma_ying1_1 https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427792012 Ultrasound is the sound with frequencies that are greater than 20 000 hertz.
Applications include 
Pre-natal scan to check the development of babies in the womb
Used by ships to determine the depth of the seabed
Check for cracks in metal pipers that are too small for the naked eye to see]]> 2020-01-06 02:35:47 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427792012 https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794584 Sound is a longitudinal wave.]]> 2020-01-06 02:59:49 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794584 https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794651 Loudness is determined by the amplitude of the sound wave while the pitch is determined by the frequency of the sound.]]> 2020-01-06 03:00:19 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794651 https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794692 The repetition of sound due to the reflection of sound

]]> 2020-01-06 03:00:38 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794692 when you vibrate the air it vibes and you get sound https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794732 2020-01-06 03:01:02 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794732 https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794759 Sound is a produced by vibrating sources placed in a medium.  (its vibing)]]> 2020-01-06 03:01:17 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794759 https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794801 Sound frequencies that are above the human hearing limit (20kHz)]]> 2020-01-06 03:01:34 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794801 Ultrasounds https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794811 High frequency sounds]]> 2020-01-06 03:01:36 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794811 ng_yao_zhu_isaiah https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794819 Ultrasound are sound waves with frequencies that are too high for humans to hear. 

It can be used in ultrasound imaging to diagnose a wide variety of conditions]]> 2020-01-06 03:01:39 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794819 How is ultrasound used? koh_yong_de https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794842 An ultrasound scan uses high-frequency sound waves to make an image of a person's internal body structures. Doctors commonly use ultrasound to study a developing fetus (unborn baby), a person's abdominal and pelvic organs, muscles and tendons, or their heart and blood vessels.]]> 2020-01-06 03:01:54 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794842 https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794876 Using the time it takes for sound to travel to a wall divided by the distance between the person and the wall.]]> 2020-01-06 03:02:22 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427794876 https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427795037 in a thicc medium it travels at faster speeds as compared to a less thicc medium]]> 2020-01-06 03:02:55 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427795037 https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427795270 detects crack in pipes and concrete + babies

]]> 2020-01-06 03:04:55 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427795270 Hello World https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427796785 2020-01-06 03:18:17 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/427796785 ma_ying1_1 https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/428224422 2020-01-07 02:39:30 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/428224422 Sound Review ma_ying1_1 https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/428228831 2020-01-07 03:06:59 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/428228831 Turning Effect of Forces ma_ying1_1 https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/428229182 2020-01-07 03:09:16 UTC https://padlet.com/ma_ying1_1/ngauees3v1u3/wish/428229182