{"id":43,"date":"2013-12-23T19:06:28","date_gmt":"2013-12-23T19:06:28","guid":{"rendered":"http:\/\/blog.soton.ac.uk\/soundwaves\/?page_id=43"},"modified":"2014-01-24T12:26:54","modified_gmt":"2014-01-24T12:26:54","slug":"summary","status":"publish","type":"page","link":"https:\/\/blog.soton.ac.uk\/soundwaves\/wave-basics\/summary\/","title":{"rendered":"Summary"},"content":{"rendered":"<h4>The nature of waves<\/h4>\n<p><a href=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/Web-ba1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-thumbnail wp-image-186\" alt=\"Web-ba1\" src=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/Web-ba1-150x118.png\" width=\"150\" height=\"118\" \/><\/a><\/p>\n<ul>\n<li>A wave is a disturbance in a medium.<\/li>\n<li>It carries energy from one point to another without transferring matter.<\/li>\n<li>There are two main types: Longitudinal and Transverse.<\/li>\n<li>Sound waves are an example of longitudinal waves.<\/li>\n<li>Typically, sound waves travel at about 340 meters per second in air at room temperature and pressure.<\/li>\n<\/ul>\n<h4>Ways of showing waves<\/h4>\n<p><a href=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/thumbshow.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-thumbnail wp-image-187\" alt=\"thumbshow\" src=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/thumbshow-150x150.png\" width=\"150\" height=\"150\" \/><\/a><br \/>\nWe use three ways of representing the propagation of waves:<\/p>\n<ul>\n<li>Dots.<\/li>\n<li>Colour maps.<\/li>\n<li>Line graphs.<\/li>\n<\/ul>\n<h4><\/h4>\n<h4>Wavelength-frequency relation<\/h4>\n<p><a href=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/Web-ba2.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-189\" alt=\"Web-ba2\" src=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/Web-ba2.png\" width=\"141\" height=\"106\" \/><\/a><br \/>\nFrequency <em>f<\/em>, wavelength \u03bb and wave velocity <em>v<\/em> are mathematically related by:<\/p>\n<p style=\"text-align: center\"><em>v = f \u03bb<\/em><\/p>\n<h4><\/h4>\n<h4>Point sources and inverse-square law<\/h4>\n<p><a href=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/thumbpoint.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-thumbnail wp-image-190\" alt=\"thumbpoint\" src=\"http:\/\/blog.soton.ac.uk\/soundwaves\/files\/2013\/12\/thumbpoint-150x150.png\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p style=\"text-align: justify\">The energy carried by waves that radiate uniformly in all directions from a point source decay as the inverse of the square of the distance from the point source. This is known as the inverse square law.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The nature of waves A wave is a disturbance in a medium. It carries energy from one point to another without transferring matter. There are two main types: Longitudinal and Transverse. Sound waves are an example of longitudinal waves. Typically, sound waves travel at about 340 meters per second in air at room temperature and [&hellip;]<\/p>\n","protected":false},"author":75333,"featured_media":0,"parent":13,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-43","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/pages\/43","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/users\/75333"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/comments?post=43"}],"version-history":[{"count":7,"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/pages\/43\/revisions"}],"predecessor-version":[{"id":326,"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/pages\/43\/revisions\/326"}],"up":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/pages\/13"}],"wp:attachment":[{"href":"https:\/\/blog.soton.ac.uk\/soundwaves\/wp-json\/wp\/v2\/media?parent=43"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}