Sound Continued
Bayani Gaba-gaba
Thunder rolls in seconds after the lightning flash, a shout returns as an echo from a cliff, and an unborn baby is imaged with sound too high-pitched to hear. Sound is a wave that travels through matter, and by timing it, reflecting it and pushing its frequency above hearing we can measure distances, find flaws and see inside the body.
In this lesson you will measure the speed of sound in air from a distance and a time, describe how amplitude and frequency set the loudness and pitch of a note, define an echo and ultrasound, and use ultrasound in sonar and scanning, including calculating depth or distance from the travel time and the wave speed.
Manufura
- Describe a method involving a measurement of distance and time for determining the speed of sound in air
- Describe how changes in amplitude and frequency affect the loudness and pitch of sound waves
- Describe an echo as the reflection of sound waves
- Define ultrasound as sound with a frequency higher than 20 kHz
- [Supplement] Describe the uses of ultrasound in non- destructive testing of materials, medical scanning of soft tissue and sonar including calculation of depth or distance from time and wave speed
Takardar Darasi
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Nazarin Darasi
Barka da kammala darasi akan Sound Continued. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- The approximate speed of sound in air is A. 3 m/s B. 34 m/s C. 340 m/s D. 3 x 10^8 m/s Answer: C
- Increasing the amplitude of a sound wave increases its A. pitch B. frequency C. loudness D. speed Answer: C
- Ultrasound is defined as sound with a frequency higher than A. 20 Hz B. 200 Hz C. 2 kHz D. 20 kHz Answer: D
- An echo returns from a wall 1.0 s after a clap. The wall is 170 m away. The speed of sound is A. 85 m/s B. 170 m/s C. 340 m/s D. 680 m/s Answer: C
- A sonar pulse takes 0.4 s to return from the seabed (speed 1500 m/s). The depth is A. 150 m B. 300 m C. 600 m D. 1200 m Answer: B
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Littattafan da ake ba da shawarar karantawa
Yi Aikin Tambayoyin Gwaji
Kana son yin aikin tambayoyin gwaji kan Sound Continued? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.
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Duk abin da kake buƙata don yin fice a JAMB, WAEC & NECO.
