{"id":262916,"date":"2025-07-20T23:05:18","date_gmt":"2025-07-20T23:05:18","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=262916"},"modified":"2025-07-20T23:05:20","modified_gmt":"2025-07-20T23:05:20","slug":"the-speed-of-light-is-300-million-meters-per-second-2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/20\/the-speed-of-light-is-300-million-meters-per-second-2\/","title":{"rendered":"The speed of light is 300 million meters per second."},"content":{"rendered":"\n
The speed of light is 300 million meters per second. What is the speed of light measured in miles per hour? (Round your answer to the nearest million miles per hour.) How long does it take light to travel the distance of 142 million miles from the sun to Mars? (Round your answer to the nearest minute<\/p>\n\n\n\n
The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n
. Speed of Light in Miles per Hour<\/h3>\n\n\n\n
Given that the speed of light is 300 million meters per second, we can convert this to miles per hour using the following steps:<\/p>\n\n\n\n
Conversion Factors:<\/h4>\n\n\n\n
\n
1 mile = 1,609.34 meters<\/li>\n\n\n\n
1 hour = 3,600 seconds<\/li>\n<\/ul>\n\n\n\n
Step 1: Convert meters to miles<\/h4>\n\n\n\n
To convert 300 million meters to miles: 300,000,000\u2009meters\u00d7(1\u2009mile1,609.34\u2009meters)=186,411.36\u2009miles300,000,000 \\, \\text{meters} \\times \\left( \\frac{1 \\, \\text{mile}}{1,609.34 \\, \\text{meters}} \\right) = 186,411.36 \\, \\text{miles}300,000,000meters\u00d7(1,609.34meters1mile\u200b)=186,411.36miles<\/p>\n\n\n\n
So, the speed of light is approximately 186,411.36 miles per second.<\/p>\n\n\n\n
Step 2: Convert seconds to hours<\/h4>\n\n\n\n
Now, to convert this speed from miles per second to miles per hour, multiply by the number of seconds in an hour: 186,411.36\u2009miles\/second\u00d73,600\u2009seconds\/hour=670,879,000\u2009miles\/hour186,411.36 \\, \\text{miles\/second} \\times 3,600 \\, \\text{seconds\/hour} = 670,879,000 \\, \\text{miles\/hour}186,411.36miles\/second\u00d73,600seconds\/hour=670,879,000miles\/hour<\/p>\n\n\n\n
Rounding this to the nearest million miles per hour: Speed of light\u2248671,000,000\u2009miles\/hour\\text{Speed of light} \\approx 671,000,000 \\, \\text{miles\/hour}Speed of light\u2248671,000,000miles\/hour<\/p>\n\n\n\n
2. Time for Light to Travel from the Sun to Mars<\/h3>\n\n\n\n
The distance from the Sun to Mars is 142 million miles. To calculate how long it takes light to travel this distance, we use the formula: Time=DistanceSpeed\\text{Time} = \\frac{\\text{Distance}}{\\text{Speed}}Time=SpeedDistance\u200b<\/p>\n\n\n\n
where:<\/p>\n\n\n\n
\n
Distance = 142 million miles<\/li>\n\n\n\n
Speed = 671 million miles per hour (from the previous calculation)<\/li>\n<\/ul>\n\n\n\n
Convert hours to minutes by multiplying by 60: 0.211\u2009hours\u00d760\u2009minutes\/hour\u224812.66\u2009minutes0.211 \\, \\text{hours} \\times 60 \\, \\text{minutes\/hour} \\approx 12.66 \\, \\text{minutes}0.211hours\u00d760minutes\/hour\u224812.66minutes<\/p>\n\n\n\n
Rounding this to the nearest minute: Time\u224813\u2009minutes\\text{Time} \\approx 13 \\, \\text{minutes}Time\u224813minutes<\/p>\n\n\n\n
Final Answers:<\/h3>\n\n\n\n
\n
Speed of light: 671 million miles per hour<\/li>\n\n\n\n
Time to travel from the Sun to Mars: 13 minutes<\/li>\n<\/ul>\n\n\n\n<\/figure>\n","protected":false},"excerpt":{"rendered":"
The speed of light is 300 million meters per second. What is the speed of light measured in miles per hour? (Round your answer to the nearest million miles per hour.) How long does it take light to travel the distance of 142 million miles from the sun to Mars? (Round your answer to the […]<\/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-262916","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/262916","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=262916"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/262916\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=262916"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=262916"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=262916"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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