{"id":253126,"date":"2025-07-11T22:39:56","date_gmt":"2025-07-11T22:39:56","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=253126"},"modified":"2025-07-11T22:39:58","modified_gmt":"2025-07-11T22:39:58","slug":"j-is-the-same-amount-of-energy-as","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/11\/j-is-the-same-amount-of-energy-as\/","title":{"rendered":"J is the same amount of energy as"},"content":{"rendered":"\n<p>J is the same amount of energy as <strong>_<\/strong> A) 155 cal B) 2720 cal C) 650. cal D) 1550 cal E) 2.72 cal<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>The correct answer is <strong>A) 155 cal<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>The relationship between joules (J) and calories (cal) is based on the conversion factor: 1\u2009cal=4.184\u2009J1 \\, \\text{cal} = 4.184 \\, \\text{J}1cal=4.184J<\/p>\n\n\n\n<p>To convert 650 joules (J) into calories, we use the formula: Calories=Joules4.184\\text{Calories} = \\frac{\\text{Joules}}{4.184}Calories=4.184Joules\u200b<\/p>\n\n\n\n<p>Substituting the given value of 650 J: Calories=6504.184\u2248155.1\u2009cal\\text{Calories} = \\frac{650}{4.184} \\approx 155.1 \\, \\text{cal}Calories=4.184650\u200b\u2248155.1cal<\/p>\n\n\n\n<p>Thus, <strong>650 J is approximately equal to 155 calories<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Why this is true:<\/h3>\n\n\n\n<p>The joule (J) is the SI (International System of Units) unit of energy, and the calorie (cal) is a non-SI unit often used in the context of food energy. To understand this conversion, think of joules as a more universal unit used in scientific contexts, while calories are still common in food science and other practical areas.<\/p>\n\n\n\n<p>By using the above conversion factor, we can determine that 650 J is nearly the same as 155 calories, which aligns with the answer choice A. It&#8217;s important to note that calories in this context are not the &#8220;large calories&#8221; (kcal) used on food labels, but the small calories, which are sometimes referred to as &#8220;gram calories&#8221; or &#8220;small calories.&#8221;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner9-79.jpeg\" alt=\"\" class=\"wp-image-253128\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>J is the same amount of energy as _ A) 155 cal B) 2720 cal C) 650. cal D) 1550 cal E) 2.72 cal The Correct Answer and Explanation is: The correct answer is A) 155 cal. Explanation: The relationship between joules (J) and calories (cal) is based on the conversion factor: 1\u2009cal=4.184\u2009J1 \\, \\text{cal} [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-253126","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/253126","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=253126"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/253126\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=253126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=253126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=253126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}