{"id":541643,"date":"2017-09-25T02:00:00","date_gmt":"2017-09-24T23:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=96c8a042d56cb6066f6a9b0e97d80ca7"},"modified":"2017-09-25T02:00:00","modified_gmt":"2017-09-24T23:00:00","slug":"graphs-in-kinematics-a-need-for-adherence-to-principles-of-algebraic-functions","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=541643","title":{"rendered":"Graphs in kinematics\u2014a need for adherence to principles of algebraic functions"},"content":{"rendered":"<p>Graphs in physics are central to the analysis of phenomena and to learning about a system\u2019s<br \/>\nbehavior. The ways students handle graphs are frequently researched. Students\u2019 misconceptions are<br \/>\nhighlighted, and methods of improvement suggested. While kinematics graphs are to represent a real<br \/>\nmotion, they are also algebraic entities that must satisfy conditions for being algebraic functions.<br \/>\nTo be algebraic functions, they must pass certain tests before they can be used to infer more about<br \/>\nmotion. A preliminary survey of some physics resources has revealed that little attention is paid to<br \/>\nverifying if the position, velocity and acceleration versus time graphs, that are to depict real<br \/>\nmotion, satisfy the most critical condition for being an algebraic function; the vertical line test.<br \/>\nThe lack of attention to this adherence shows as vertical segments in piecewise graphs. Such graphs<br \/>\ngenerate unrealistic interpretations and may confuse students. A group of 25 college physics stud&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Graphs in physics are central to the analysis of phenomena and to learning about a system\u2019s<br \/>\nbehavior. The ways students handle graphs are frequently researched. Students\u2019 misconceptions are<br \/>\nhighlighted, and methods of improvement suggested. While&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[178],"tags":[],"class_list":{"0":"post-541643","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-rss-fuusikaharidus","7":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/541643","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=541643"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/541643\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=541643"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=541643"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=541643"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}