What is ultrasound?

Choose 1 answer

sounds above 20,000Hz; above the human auditory range

the properties of a space that affect how a sound is transmitted

a system for detecting objects underwater by reflecting sound waves

using the reflection of sound to locate objects

materials that are used to absorb and dampen sound

{"type":"multi-choice","id":"2947","dataJson":{"type":"multi-choice","slide_id":15627,"key":2947,"prompt":"\u003cp\u003eWhat is ultrasound?\u003c/p\u003e","validResponse":[3159],"use_data":false,"question_body":"","question_video_url":"","question_fileboy_image_id":"","options":[{"label":"sounds above 20,000Hz; above the human auditory range\n","value":3159,"fileboyId":"6f79c6ac-15b7-44da-bce2-c5114ace1667"},{"label":"the properties of a space that affect how a sound is transmitted","value":3157,"fileboyId":"9c430f4e-fbe6-426e-a69d-01ea0a2caa66"},{"label":"a system for detecting objects underwater by reflecting sound waves","value":3160,"fileboyId":"76400de7-f03b-40f8-b8a8-fa40c7035bc8"},{"label":"using the reflection of sound to locate objects","value":3156,"fileboyId":"eacb5f78-a8eb-44d1-8418-8b8f8047fb3a"},{"label":"materials that are used to absorb and dampen sound","value":3158,"fileboyId":"839f6b77-0bd4-41cb-b290-d8d982a66c02"}],"question_data":{"body":"Medical scanners can use ultrasound to echolocate internal activity. They are often used to check on the development of unborn babies. It is non-invasive and perfectly safe for the baby.","video":null,"image_url":"https://www.developingexperts.com/file-cdn/images/get/a51bd986-54df-4fba-aae4-7366616da369?transform=resize:800x600;format:webp;quality:80"},"limitChoices":{"min":1,"max":1}}}

What does sonar mean?

Choose 1 answer

the properties of a space that affect how a sound is transmitted

materials that are used to absorb and dampen sound

a system for detecting objects underwater by reflecting sound waves

using the reflection of sound to locate objects

sounds above 20,000Hz; above the human auditory range

{"type":"multi-choice","id":"2946","dataJson":{"type":"multi-choice","slide_id":15625,"key":2946,"prompt":"\u003cp\u003eWhat does sonar mean?\u003c/p\u003e","validResponse":[3160],"use_data":false,"question_body":"","question_video_url":"","question_fileboy_image_id":"","options":[{"label":"the properties of a space that affect how a sound is transmitted","value":3157,"fileboyId":"9c430f4e-fbe6-426e-a69d-01ea0a2caa66"},{"label":"materials that are used to absorb and dampen sound","value":3158,"fileboyId":"839f6b77-0bd4-41cb-b290-d8d982a66c02"},{"label":"a system for detecting objects underwater by reflecting sound waves","value":3160,"fileboyId":"76400de7-f03b-40f8-b8a8-fa40c7035bc8"},{"label":"using the reflection of sound to locate objects","value":3156,"fileboyId":"eacb5f78-a8eb-44d1-8418-8b8f8047fb3a"},{"label":"sounds above 20,000Hz; above the human auditory range\n","value":3159,"fileboyId":"6f79c6ac-15b7-44da-bce2-c5114ace1667"}],"question_data":{"body":"Humans have used technology to mimic echolocation. Sonar is a technique that sends out sound waves and measures the reflection. ","video":null,"image_url":"https://www.developingexperts.com/file-cdn/images/get/7bb3db91-91ca-4509-8f63-042d4c124a32?transform=resize:800x600;format:webp;quality:80"},"limitChoices":{"min":1,"max":1}}}

What does baffling mean?

Choose 1 answer

using the reflection of sound to locate objects

materials that are used to absorb and dampen sound

sounds above 20,000Hz; above the human auditory range

the properties of a space that affect how a sound is transmitted

a system for detecting objects underwater by reflecting sound waves

{"type":"multi-choice","id":"2948","dataJson":{"type":"multi-choice","slide_id":15631,"key":2948,"prompt":"\u003cp\u003eWhat does baffling mean?\u003c/p\u003e","validResponse":[3158],"use_data":false,"question_body":"","question_video_url":"","question_fileboy_image_id":"","options":[{"label":"using the reflection of sound to locate objects","value":3156,"fileboyId":"eacb5f78-a8eb-44d1-8418-8b8f8047fb3a"},{"label":"materials that are used to absorb and dampen sound","value":3158,"fileboyId":"839f6b77-0bd4-41cb-b290-d8d982a66c02"},{"label":"sounds above 20,000Hz; above the human auditory range\n","value":3159,"fileboyId":"6f79c6ac-15b7-44da-bce2-c5114ace1667"},{"label":"the properties of a space that affect how a sound is transmitted","value":3157,"fileboyId":"9c430f4e-fbe6-426e-a69d-01ea0a2caa66"},{"label":"a system for detecting objects underwater by reflecting sound waves","value":3160,"fileboyId":"76400de7-f03b-40f8-b8a8-fa40c7035bc8"}],"question_data":{"body":"Recording studios often have their walls covered in baffling to make sure that the sound being recorded is clear and there are no echoes.\n","video":null,"image_url":"https://www.developingexperts.com/file-cdn/images/get/d323c0e5-6d28-4580-a28a-467395ddb934?transform=resize:800x600;format:webp;quality:80"},"limitChoices":{"min":1,"max":1}}}

What does acoustics mean?

Choose 1 answer

the properties of a space that affect how a sound is transmitted

using the reflection of sound to locate objects

sounds above 20,000Hz; above the human auditory range

materials that are used to absorb and dampen sound

a system for detecting objects underwater by reflecting sound waves

{"type":"multi-choice","id":"2949","dataJson":{"type":"multi-choice","slide_id":15632,"key":2949,"prompt":"\u003cp\u003eWhat does acoustics mean?\u003c/p\u003e","validResponse":[3157],"use_data":false,"question_body":"","question_video_url":"","question_fileboy_image_id":"","options":[{"label":"the properties of a space that affect how a sound is transmitted","value":3157,"fileboyId":"9c430f4e-fbe6-426e-a69d-01ea0a2caa66"},{"label":"using the reflection of sound to locate objects","value":3156,"fileboyId":"eacb5f78-a8eb-44d1-8418-8b8f8047fb3a"},{"label":"sounds above 20,000Hz; above the human auditory range\n","value":3159,"fileboyId":"6f79c6ac-15b7-44da-bce2-c5114ace1667"},{"label":"materials that are used to absorb and dampen sound","value":3158,"fileboyId":"839f6b77-0bd4-41cb-b290-d8d982a66c02"},{"label":"a system for detecting objects underwater by reflecting sound waves","value":3160,"fileboyId":"76400de7-f03b-40f8-b8a8-fa40c7035bc8"}],"question_data":{"body":"The acoustics of a space refers to how sound behaves in that environment. A recording studio and a concert hall are likely to have different acoustics, as we would want the sound to behave differently in each.","video":null,"image_url":"https://www.developingexperts.com/file-cdn/images/get/cfeb9ede-ee76-4955-a015-f6cc58494dd5?transform=resize:800x600;format:webp;quality:80"},"limitChoices":{"min":1,"max":1}}}

What does echolocation mean?

Choose 1 answer

using the reflection of sound to locate objects

a system for detecting objects underwater by reflecting sound waves

the properties of a space that affect how a sound is transmitted

materials that are used to absorb and dampen sound

sounds above 20,000Hz; above the human auditory range

{"type":"multi-choice","id":"2950","dataJson":{"type":"multi-choice","slide_id":15623,"key":2950,"prompt":"\u003cp\u003eWhat does echolocation mean?\u003c/p\u003e","validResponse":[3156],"use_data":false,"question_body":"","question_video_url":"","question_fileboy_image_id":"","options":[{"label":"using the reflection of sound to locate objects","value":3156,"fileboyId":"eacb5f78-a8eb-44d1-8418-8b8f8047fb3a"},{"label":"a system for detecting objects underwater by reflecting sound waves","value":3160,"fileboyId":"76400de7-f03b-40f8-b8a8-fa40c7035bc8"},{"label":"the properties of a space that affect how a sound is transmitted","value":3157,"fileboyId":"9c430f4e-fbe6-426e-a69d-01ea0a2caa66"},{"label":"materials that are used to absorb and dampen sound","value":3158,"fileboyId":"839f6b77-0bd4-41cb-b290-d8d982a66c02"},{"label":"sounds above 20,000Hz; above the human auditory range\n","value":3159,"fileboyId":"6f79c6ac-15b7-44da-bce2-c5114ace1667"}],"question_data":{"body":"This technique is known as echolocation. It is commonly used to navigate and hunt in hard to see areas. Bats, although not blind, need to use it as they inhabit dark areas and navigate at night.\n","video":{"type":"fileboy","url":"c56b6646-72fa-451c-b572-9b18299b771d"},"image_url":"https://www.developingexperts.com/file-cdn/images/get/db175029-dd96-434a-a278-0d0228b9e28f?transform=resize:800x600;format:webp;quality:80"},"limitChoices":{"min":1,"max":1}}}

Answer incorrect

Look at the slide below to work out the answer.