{"id":241,"date":"2015-08-13T20:40:51","date_gmt":"2015-08-13T20:40:51","guid":{"rendered":"http:\/\/digitalobby.spu.edu\/energy\/?page_id=241"},"modified":"2019-01-18T18:39:55","modified_gmt":"2019-01-18T18:39:55","slug":"is-there-a-difference-between-a-physics-system-and-a-biology-system","status":"publish","type":"page","link":"https:\/\/scholars.spu.edu\/seeley\/lane-seeley\/physics-learning-resources\/home\/systems\/is-there-a-difference-between-a-physics-system-and-a-biology-system\/","title":{"rendered":"Is there a difference between a physics &#8216;system&#8217; and a biology &#8216;system&#8217;?"},"content":{"rendered":"<p><span style=\"color: #008000\"><b><i>In biology nature determines\u00a0the system:<\/i><\/b><\/span><\/p>\n<p><span style=\"color: #008000\"><b><i>&#8216;A <\/i><\/b><b><i>group of related natural objects or forces within a defined zone, a regularly interacting or interdependent group of items forming a unified whole.&#8217;<\/i><\/b><\/span><\/p>\n<p><span style=\"color: #008000\"><b>\u00a0www.biologyonline.org<\/b><\/span><\/p>\n<p><b><i><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-398 alignright\" src=\"https:\/\/scholars.spu.edu\/seeley\/wp-content\/uploads\/sites\/13\/2015\/08\/Yellowstone-Wolf.jpg\" alt=\"Yellowstone Wolf\" width=\"216\" height=\"144\" srcset=\"https:\/\/scholars.spu.edu\/seeley\/wp-content\/uploads\/sites\/13\/2015\/08\/Yellowstone-Wolf.jpg 630w, https:\/\/scholars.spu.edu\/seeley\/wp-content\/uploads\/sites\/13\/2015\/08\/Yellowstone-Wolf-300x200.jpg 300w\" sizes=\"auto, (max-width: 216px) 100vw, 216px\" \/>Wolves in Yellowstone Park &#8211; Ecologists recognize\u00a0that wolves are\u00a0an apex predator and act as integral part of the food web in Yellowstone Park. From a biological perspective, removing wolves from the system would imply physically removing the wolves from the park so that they <span style=\"text-decoration: underline\">no longer influence the system<\/span>.<\/i><\/b><\/p>\n<p><span style=\"color: #0000ff\"><b><i>In physics the scientist chooses the system:<\/i><\/b><\/span><\/p>\n<p><span style=\"color: #0000ff\"><b><i>&#8216;We <\/i><\/b><b><i>will often consider a particular system, by which we mean a particular object or set of objects; \u00a0<\/i><\/b><b><i>everything<\/i><\/b><b><i> else in the universe is called the \u201cenvironment.\u201d&#8217;<\/i><\/b><\/span><\/p>\n<p><span style=\"color: #0000ff\"><b>\u00a0 <\/b><b>Giancoli<\/b><b>, Physics for Scientists <\/b><b>\u00a0 and Engineers<\/b><b>, 3rd Edition, <\/b><b>pg<\/b><b> 445<\/b><b>.<\/b><\/span><\/p>\n<p><b><i><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-402 alignright\" src=\"https:\/\/scholars.spu.edu\/seeley\/wp-content\/uploads\/sites\/13\/2015\/08\/Push-Box.jpg\" alt=\"Push Box\" width=\"247\" height=\"116\" srcset=\"https:\/\/scholars.spu.edu\/seeley\/wp-content\/uploads\/sites\/13\/2015\/08\/Push-Box.jpg 405w, https:\/\/scholars.spu.edu\/seeley\/wp-content\/uploads\/sites\/13\/2015\/08\/Push-Box-300x141.jpg 300w\" sizes=\"auto, (max-width: 247px) 100vw, 247px\" \/>Atwood&#8217;s Machine &#8211; Physicists recognize that when applying the principle of energy conservation it can be very important to make a strategic\u00a0system choice. \u00a0When analyzing the energy story\u00a0of a pushing a box up a ramp a physicists might choose to put the person outside of the system. \u00a0This d<span style=\"text-decoration: underline\">oes not imply that the person is not influencing the motion of the box<\/span>. \u00a0By putting the person in the environment the physicist chooses to only consider the energy that the person transfers to the box and not other energy changes of the person.<\/i><\/b><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In biology nature determines\u00a0the system: &#8216;A group of related natural objects or forces within a defined zone, a regularly interacting or interdependent [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"parent":16,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"page-templates\/page_fullwidth.php","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"class_list":["post-241","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/scholars.spu.edu\/seeley\/wp-json\/wp\/v2\/pages\/241","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scholars.spu.edu\/seeley\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/scholars.spu.edu\/seeley\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/scholars.spu.edu\/seeley\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/scholars.spu.edu\/seeley\/wp-json\/wp\/v2\/comments?post=241"}],"version-history":[{"count":2,"href":"https:\/\/scholars.spu.edu\/seeley\/wp-json\/wp\/v2\/pages\/241\/revisions"}],"predecessor-version":[{"id":726,"href":"https:\/\/scholars.spu.edu\/seeley\/wp-json\/wp\/v2\/pages\/241\/revisions\/726"}],"up":[{"embeddable":true,"href":"https:\/\/scholars.spu.edu\/seeley\/wp-json\/wp\/v2\/pages\/16"}],"wp:attachment":[{"href":"https:\/\/scholars.spu.edu\/seeley\/wp-json\/wp\/v2\/media?parent=241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}