{"id":185207,"date":"2020-04-22T20:22:23","date_gmt":"2020-04-22T16:22:23","guid":{"rendered":"https:\/\/abisoman.com\/broadcaster\/?p=185207"},"modified":"2020-04-23T10:41:31","modified_gmt":"2020-04-23T06:41:31","slug":"grade-11-dp-physics","status":"publish","type":"post","link":"https:\/\/abisoman.com\/broadcaster\/2020\/04\/22\/grade-11-dp-physics\/","title":{"rendered":"Grade 11 DP Physics"},"content":{"rendered":"<p>This week we built on our previous discussion about the principal of superposition to explain how standing waves are produced on strings and pipes.<\/p>\n<p><img decoding=\"async\" data-src=\"https:\/\/abisoman.com\/broadcaster\/wp-content\/uploads\/sites\/17\/2020\/04\/img_2217.jpg\" class=\"size-full wp-image-185204 lazyload\" width=\"1000\" height=\"765\" data-srcset=\"https:\/\/abisoman.com\/broadcaster\/wp-content\/uploads\/sites\/17\/2020\/04\/img_2217.jpg 1000w, https:\/\/abisoman.com\/broadcaster\/wp-content\/uploads\/sites\/17\/2020\/04\/img_2217-980x750.jpg 980w, https:\/\/abisoman.com\/broadcaster\/wp-content\/uploads\/sites\/17\/2020\/04\/img_2217-480x367.jpg 480w\" data-sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1000px, 100vw\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1000px; --smush-placeholder-aspect-ratio: 1000\/765;\" \/><\/p>\n<p>In relation to waves on string (transverse waves) and vibration of air molecules to produce sound (longitudinal waves), we discussed points of no displacement (nodes) and points of maximum displacement in the positive and negative x-direction (antinodes), and how these correspond to destructive and constructive interference respectively.<\/p>\n<p><img decoding=\"async\" data-src=\"https:\/\/abisoman.com\/broadcaster\/wp-content\/uploads\/sites\/17\/2020\/04\/img_2219.jpg\" class=\"size-full wp-image-185205 lazyload\" width=\"1000\" height=\"810\" data-srcset=\"https:\/\/abisoman.com\/broadcaster\/wp-content\/uploads\/sites\/17\/2020\/04\/img_2219.jpg 1000w, https:\/\/abisoman.com\/broadcaster\/wp-content\/uploads\/sites\/17\/2020\/04\/img_2219-980x794.jpg 980w, https:\/\/abisoman.com\/broadcaster\/wp-content\/uploads\/sites\/17\/2020\/04\/img_2219-480x389.jpg 480w\" data-sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1000px, 100vw\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1000px; --smush-placeholder-aspect-ratio: 1000\/810;\" \/><\/p>\n<p>We further looked at boundary conditions for the formation of standing wave patterns and how frequency of vibration determines the type of harmonic formed. Students also learned how to sketch standing wave patterns for different harmonics in both strings and pipes.<\/p>\n<p><img decoding=\"async\" data-src=\"https:\/\/abisoman.com\/broadcaster\/wp-content\/uploads\/sites\/17\/2020\/04\/img_2220.jpg\" class=\"size-full wp-image-185206 lazyload\" width=\"1000\" height=\"766\" data-srcset=\"https:\/\/abisoman.com\/broadcaster\/wp-content\/uploads\/sites\/17\/2020\/04\/img_2220.jpg 1000w, https:\/\/abisoman.com\/broadcaster\/wp-content\/uploads\/sites\/17\/2020\/04\/img_2220-980x751.jpg 980w, https:\/\/abisoman.com\/broadcaster\/wp-content\/uploads\/sites\/17\/2020\/04\/img_2220-480x368.jpg 480w\" data-sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1000px, 100vw\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1000px; --smush-placeholder-aspect-ratio: 1000\/766;\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This week we built on our previous discussion about the principal of superposition to explain how standing waves are produced on strings and pipes. In relation to waves on string (transverse waves) and vibration of air molecules to produce sound (longitudinal waves), we discussed points of no displacement (nodes) and points of maximum displacement in [&hellip;]<\/p>\n","protected":false},"author":272,"featured_media":185205,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","wds_primary_category":0,"footnotes":""},"categories":[99,194,26,10],"tags":[],"class_list":["post-185207","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-grade-11","category-dp","category-secondary-science","category-grades"],"_links":{"self":[{"href":"https:\/\/abisoman.com\/broadcaster\/wp-json\/wp\/v2\/posts\/185207","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/abisoman.com\/broadcaster\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/abisoman.com\/broadcaster\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/abisoman.com\/broadcaster\/wp-json\/wp\/v2\/users\/272"}],"replies":[{"embeddable":true,"href":"https:\/\/abisoman.com\/broadcaster\/wp-json\/wp\/v2\/comments?post=185207"}],"version-history":[{"count":0,"href":"https:\/\/abisoman.com\/broadcaster\/wp-json\/wp\/v2\/posts\/185207\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/abisoman.com\/broadcaster\/wp-json\/wp\/v2\/media\/185205"}],"wp:attachment":[{"href":"https:\/\/abisoman.com\/broadcaster\/wp-json\/wp\/v2\/media?parent=185207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/abisoman.com\/broadcaster\/wp-json\/wp\/v2\/categories?post=185207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/abisoman.com\/broadcaster\/wp-json\/wp\/v2\/tags?post=185207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}