{"id":202063,"date":"2025-03-17T07:06:39","date_gmt":"2025-03-17T07:06:39","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=202063"},"modified":"2025-03-17T07:06:41","modified_gmt":"2025-03-17T07:06:41","slug":"a-teaspoonful-of-neutron-star-material-on-earth-would-weigh","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/03\/17\/a-teaspoonful-of-neutron-star-material-on-earth-would-weigh\/","title":{"rendered":"A teaspoonful of neutron star material on Earth would weigh"},"content":{"rendered":"\n<p>A teaspoonful of neutron star material on Earth would weigh<\/p>\n\n\n\n<p>A) about the same as a teaspoonful of Earth-like material.<\/p>\n\n\n\n<p>B) a few tons.<\/p>\n\n\n\n<p>C) more than Mt. Everest.<\/p>\n\n\n\n<p>D) more than the Moon.<\/p>\n\n\n\n<p>E) more than Earth.<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>The correct answer is:<\/p>\n\n\n\n<p><strong>C) more than Mt. Everest.<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>A neutron star is an incredibly dense remnant of a massive star that has undergone a supernova explosion. It is composed almost entirely of neutrons, with its atoms crushed to extreme densities by gravity. This results in one of the densest forms of matter in the universe, second only to black holes.<\/p>\n\n\n\n<p>To understand the weight of a teaspoonful of neutron star material on Earth, let&#8217;s consider its density. The average density of a neutron star is about <strong>4 \u00d7 10\u00b9\u2077 kg\/m\u00b3<\/strong> (or <strong>400 trillion kg per cubic meter<\/strong>). This is immensely higher than any material found on Earth.<\/p>\n\n\n\n<p>Now, let\u2019s estimate the mass of a teaspoonful (about <strong>5 cubic centimeters or 5 \u00d7 10\u207b\u2076 cubic meters<\/strong>) of neutron star material:<\/p>\n\n\n\n<p>[<br>\\text{Mass} = \\text{Density} \\times \\text{Volume}<br>]<\/p>\n\n\n\n<p>[<br>= (4 \u00d7 10^{17} \\text{ kg\/m}^3) \u00d7 (5 \u00d7 10^{-6} \\text{ m}^3)<br>]<\/p>\n\n\n\n<p>[<br>= 2 \u00d7 10^{12} \\text{ kg} = 2 trillion kg<br>]<\/p>\n\n\n\n<p>This is <strong>about 400 times the mass of the Great Pyramid of Giza<\/strong> or roughly <strong>10 times the mass of Mt. Everest (which is about 200 billion kg).<\/strong> Therefore, a teaspoonful of neutron star material would weigh <strong>more than Mt. Everest<\/strong> on Earth.<\/p>\n\n\n\n<p>However, this material could never actually exist on Earth in this state\u2014outside the neutron star&#8217;s immense gravity, it would rapidly expand or even explode due to the intense internal pressure.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A teaspoonful of neutron star material on Earth would weigh A) about the same as a teaspoonful of Earth-like material. B) a few tons. C) more than Mt. Everest. D) more than the Moon. E) more than Earth. The correct answer and explanation is : The correct answer is: C) more than Mt. Everest. Explanation: [&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-202063","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/202063","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=202063"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/202063\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=202063"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=202063"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=202063"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}