{"id":2163,"date":"2003-08-25T19:55:23","date_gmt":"2003-08-25T22:55:23","guid":{"rendered":"http:\/\/brockerhoff.net\/bb\/viewtopic.php?p=563"},"modified":"2010-05-08T23:34:04","modified_gmt":"2010-05-09T02:34:04","slug":"physics-savvy","status":"publish","type":"post","link":"https:\/\/brockerhoff.net\/blog\/2003\/08\/25\/physics-savvy\/","title":{"rendered":"Physics savvy?"},"content":{"rendered":"<p>I stumbled upon the <a href=\"http:\/\/www.intuitor.com\/moviephysics\/\">Intuitor Stupid Movie Physics<\/a> site (very interesting, by the way) and of course had to take their <a href=\"http:\/\/www.intuitor.com\/physics_test\/PhysicsSavvy.html\">Physics Savvy<\/a> test. Hah! Quail before my l33t physicz skillz, I thought&#8230; but I ended up with just a humbling 87.5% score. 4 out of 30 wrong!<\/p>\n<p>Analyzing my four mistakes was instructive. One of them (#17) was due to a linguistic error &#8211; I simply forgot that &#8220;speed&#8221; and &#8220;velocity&#8221; are not synonyms in English. Another (#15) was due a subtle difference between scalar and vector acceleration &#8211; I thought they meant one but they meant the other. Another mistake (#14) involved &#8220;sensation&#8221; which I was unsure how to interpret in physical terms. Finally, there&#8217;s one (#23) which I disagree with.<\/p>\n<p>This brings to mind the arguments I had in school with my various physics teachers&#8230; in retrospect, they usually hinged on trick questions or definitions of technical terms. I remember one especially complex one, involving acceleration in multiple moving frameworks, where the teacher finally had to invoke Lorentz contraction to fend me off. \ud83d\ude00<\/p>\n<p>Anyway, I suppose the average movie director and\/or movie-goer would get the majority of these wrong.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I stumbled upon the Intuitor Stupid Movie Physics site (very interesting, by the way) and of course had to take their Physics Savvy test. Hah! Quail before my l33t physicz skillz, I thought&#8230; but I ended up with just a humbling 87.5% score. 4 out of 30 wrong! Analyzing my four mistakes was instructive. One [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[5,7],"tags":[],"class_list":["post-2163","post","type-post","status-publish","format-standard","hentry","category-sci","category-tests"],"featured_image_src":null,"author_info":{"display_name":"Rainer Brockerhoff","author_link":"https:\/\/brockerhoff.net\/blog\/author\/rbrockerhoff\/"},"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p1q3Zc-yT","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/brockerhoff.net\/blog\/wp-json\/wp\/v2\/posts\/2163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/brockerhoff.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/brockerhoff.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/brockerhoff.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/brockerhoff.net\/blog\/wp-json\/wp\/v2\/comments?post=2163"}],"version-history":[{"count":0,"href":"https:\/\/brockerhoff.net\/blog\/wp-json\/wp\/v2\/posts\/2163\/revisions"}],"wp:attachment":[{"href":"https:\/\/brockerhoff.net\/blog\/wp-json\/wp\/v2\/media?parent=2163"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/brockerhoff.net\/blog\/wp-json\/wp\/v2\/categories?post=2163"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/brockerhoff.net\/blog\/wp-json\/wp\/v2\/tags?post=2163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}