{"id":4278,"date":"2021-01-27T10:00:04","date_gmt":"2021-01-27T18:00:04","guid":{"rendered":"https:\/\/www.linquip.com\/blog\/?p=4278"},"modified":"2021-09-17T00:04:14","modified_gmt":"2021-09-17T08:04:14","slug":"difference-between-speed-and-velocity","status":"publish","type":"post","link":"https:\/\/www.linquip.com\/blog\/difference-between-speed-and-velocity\/","title":{"rendered":"What&#8217;s the Difference Between Speed and Velocity?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.linquip.com\/blog\/difference-between-speed-and-velocity\/#Velocity_as_a_Vector_Quantity\" >Velocity as a Vector Quantity<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.linquip.com\/blog\/difference-between-speed-and-velocity\/#Whats_the_Difference_Between_Speed_and_Velocity\" >What&#8217;s the Difference Between Speed and Velocity?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.linquip.com\/blog\/difference-between-speed-and-velocity\/#Average_Speed_versus_Instantaneous_Speed\" >Average Speed versus Instantaneous Speed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.linquip.com\/blog\/difference-between-speed-and-velocity\/#Equations_for_Speed_and_Velocity\" >Equations for Speed and Velocity<\/a><\/li><\/ul><\/nav><\/div>\n<p>When describing objects&#8217;\u00a0<a href=\"https:\/\/www.britannica.com\/science\/motion-mechanics\" target=\"_blank\" rel=\"noopener\">motion<\/a>\u00a0in terms of distance, time, and direction, physicists use the fundamental quantities of\u00a0<a href=\"https:\/\/www.merriam-webster.com\/dictionary\/speed\" target=\"_blank\" rel=\"noopener\">speed\u00a0<\/a>vs\u00a0<a href=\"https:\/\/www.britannica.com\/science\/velocity\" target=\"_blank\" rel=\"noopener\">velocity<\/a>. Two words, two separate meanings. Yet, not unusually, we hear these terms employed interchangeably. So, what&#8217;s the exception? Why is it inaccurate to utilize the terms\u00a0<em>speed vs velocity<\/em>\u00a0interchangeably?<\/p>\n<p>The same as distance and displacement, which have different meanings (despite their similarities) indeed, speed vs velocity has some differences. Speed is a scalar quantity that relates to &#8220;how fast an object is traveling.&#8221; Speed can be considered as the rate at which an object crosses distance. A fast-moving object has a great speed and covers a comparatively large distance in a short time. In contrast, a slow-moving thing with a low speed covers a comparably small distance in the same amount of time. An object with no progress at all has zero speed. For example, 80 km\/hr represents the speed at which a car travels along a road, while 80 km\/hr e<em>ast<\/em>\u00a0illustrates the velocity at which it travels.<\/p>\n<div class=\"mceTemp\"><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Velocity_as_a_Vector_Quantity\"><\/span><strong>Velocity as a Vector Quantity<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Velocity is a vector quantity that relates to &#8220;the rate at which an object alters its position.&#8221; Visualize a person rushing, i.e., one step ahead and one step back, forever returning to the origin position. While this might occur an excitement of activity, it would follow with a zero velocity. Because the person permanently reverts to the original position, the movement would never change the situation.<\/p>\n<p>Since velocity is determined as the rate at which the position switches, this motion results in zero velocity. If a person in motion hopes to maximize their velocity, they must make every attempt to maximize the amount they are relocated from their original position. Every step must go into driving that person further from where he or she began. For sure, the person should never change directions and start to return to the original position.<\/p>\n<p>As mentioned before, velocity is a vector quantity; thus, it is\u00a0<em>direction aware<\/em>. When evaluating the velocity of an object, one must maintain track of direction. It would not be sufficient to say that an item has a velocity of 80 km\/hr. One must incorporate direction information to describe the velocity of the object entirely. For example, you must define an object&#8217;s velocity as being 80 km\/hr,\u00a0<strong>west<\/strong>. This is one of the basic differences between speed vs velocity. Speed is a scalar quantity, which implies it does not\u00a0<em>keep track of direction<\/em>; velocity is a vector quantity and direction-aware.<\/p>\n<figure id=\"attachment_4279\" aria-describedby=\"caption-attachment-4279\" style=\"width: 1080px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-4279 size-full\" src=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/01\/Figure1.jpg\" alt=\"speed vs velocity\" width=\"1080\" height=\"634\" title=\"\" srcset=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/01\/Figure1.jpg 1080w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/01\/Figure1-300x176.jpg 300w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/01\/Figure1-1024x601.jpg 1024w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/01\/Figure1-768x451.jpg 768w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/01\/Figure1-696x409.jpg 696w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/01\/Figure1-1068x627.jpg 1068w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/01\/Figure1-715x420.jpg 715w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><figcaption id=\"caption-attachment-4279\" class=\"wp-caption-text\">A general representation of speed vs velocity (Reference: <strong>coolkidfacts.com<\/strong>)<\/figcaption><\/figure>\n<h3><em>Direction of the Velocity Vector <\/em><\/h3>\n<p>The task of representing the direction of the velocity vector is straightforward. The direction of the velocity vector is solely the same as the direction that an object is traveling. It would not matter whether the item is advancing up or postponing. If an object is shifting rightwards, then its velocity is defined as being rightwards.<\/p>\n<p>If an object is traveling downwards, then its velocity is represented as being downwards. So an airplane moving towards the east with an 800 km\/hr speed has a velocity of 800 km\/hr, east. Note that speed has no direction; as mentioned before, it is a scalar, and the velocity at any moment is solely the speed value with a direction.<\/p>\n<div class=\"su-box su-box-style-default\" id=\"\" style=\"border-color:#00021e;border-radius:3px;max-width:none\"><div class=\"su-box-title\" style=\"background-color:#263551;color:#89cabd;border-top-left-radius:1px;border-top-right-radius:1px\">Read More on Linquip<\/div><div class=\"su-box-content su-u-clearfix su-u-trim\" style=\"border-bottom-left-radius:1px;border-bottom-right-radius:1px\"><a title=\"Difference Between Period and Frequency\" href=\"https:\/\/www.linquip.com\/blog\/difference-between-period-and-frequency\/\" target=\"_blank\" rel=\"noopener\" data-schema-attribute=\"\">Difference Between Period and Frequency<\/a><\/p>\n<p><a title=\"Difference between Density and Relative Density\" href=\"https:\/\/www.linquip.com\/blog\/difference-between-density-and-relative-density\/\" target=\"_blank\" rel=\"noopener\" data-schema-attribute=\"\">Difference between Density and Relative Density<\/a><\/div><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Whats_the_Difference_Between_Speed_and_Velocity\"><\/span><strong>What&#8217;s the Difference Between Speed and Velocity?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Speed vs velocity both measure the motion rate of an object. Nevertheless, speed is a\u00a0<em>scalar quantity<\/em>, which suggests that it can be expressed with a numerical value. However, velocity is a\u00a0<em>vector quantity<\/em>, which depends on the direction as well as magnitude.<\/p>\n<ul>\n<li><strong>speed<\/strong>\u00a0&#8211; the rate of distance covered by a moving object over time<\/li>\n<li><strong>velocity<\/strong>\u00a0&#8211; the rate of displacement of a traveling object over time<\/li>\n<\/ul>\n<p>Fundamentally, an object\u2019s speed indicates how fast it is moving. Its velocity, however, shows you how fast it is moving in a specific direction. You apply speed measurements in your daily life, but physicists depend on velocity measurements more regularly in their work.<\/p>\n<figure id=\"attachment_4280\" aria-describedby=\"caption-attachment-4280\" style=\"width: 717px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-4280 size-full\" src=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/01\/Figure2.jpg\" alt=\"speed vs velocity\" width=\"717\" height=\"463\" title=\"\" srcset=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/01\/Figure2.jpg 717w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/01\/Figure2-300x194.jpg 300w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/01\/Figure2-696x449.jpg 696w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/01\/Figure2-650x420.jpg 650w\" sizes=\"(max-width: 717px) 100vw, 717px\" \/><figcaption id=\"caption-attachment-4280\" class=\"wp-caption-text\">An example of speed vs velocity (Reference: <strong>slideshare.net<\/strong>)<\/figcaption><\/figure>\n<div class=\"su-box su-box-style-default\" id=\"\" style=\"border-color:#00021e;border-radius:3px;max-width:none\"><div class=\"su-box-title\" style=\"background-color:#263551;color:#89cabd;border-top-left-radius:1px;border-top-right-radius:1px\">Read More on Linquip<\/div><div class=\"su-box-content su-u-clearfix su-u-trim\" style=\"border-bottom-left-radius:1px;border-bottom-right-radius:1px\"><a title=\"Difference Between Cell and Battery\" href=\"https:\/\/www.linquip.com\/blog\/difference-between-cell-and-battery\/\" target=\"_blank\" rel=\"noopener\" data-schema-attribute=\"\">Difference Between Cell and Battery<\/a>: Ultimate Guide<\/p>\n<p><a title=\"Difference Between Scalar and Vector Quantity\" href=\"https:\/\/www.linquip.com\/blog\/difference-between-scalar-and-vector-quantity\/\" target=\"_blank\" rel=\"noopener\" data-schema-attribute=\"\">Difference Between Scalar and Vector Quantity<\/a><\/div><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Average_Speed_versus_Instantaneous_Speed\"><\/span><strong>Average Speed versus Instantaneous Speed <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Since a moving object frequently alters its speed during its motion, it is frequent to distinguish between the average speed and the instantaneous speed. The difference is as follows.<\/p>\n<ul>\n<li><strong>Instantaneous Speed\u00a0<\/strong>&#8211; the speed at any provided instant in time.<\/li>\n<li><strong>Average Speed<\/strong>\u00a0&#8211; the average of all instantaneous speeds; determined merely by a distance\/time ratio.<\/li>\n<\/ul>\n<p>You might consider the instantaneous speed as the speed that the speedometer records at any provided instant in time and the medium speed as the average of all the speedometer readings through the progression of the journey. Since the assignment of averaging speedometer readings would be pretty complicated, the average speed is more ordinarily calculated as the distance\/time ratio.<\/p>\n<p>Moving objects do not regularly travel at random and changing speeds. Irregularly, an object will travel at a constant speed and a steady rate. That is, the item will satisfy the same distance every fixed interval of time. For example, a cross-country runner might be moving with a constant speed of 10 m\/s in a straight line for several minutes. If his\/her speed is consistent, then the distance covered every second is the same. The runner would travel a distance of 10 meters every second.<\/p>\n<p>If we could measure his\/her location (distance from an optional starting point) each second, we would perceive that the position would change by 10 meters each second. This would be in severe contrast to an object that is adjusting its speed. An object with a dynamic speed would be moving a distinct distance each second.<\/p>\n<div class=\"su-box su-box-style-default\" id=\"\" style=\"border-color:#00021e;border-radius:3px;max-width:none\"><div class=\"su-box-title\" style=\"background-color:#263551;color:#89cabd;border-top-left-radius:1px;border-top-right-radius:1px\">Read More on Linquip<\/div><div class=\"su-box-content su-u-clearfix su-u-trim\" style=\"border-bottom-left-radius:1px;border-bottom-right-radius:1px\"><a title=\"Velocity Vs Acceleration\" href=\"https:\/\/www.linquip.com\/blog\/velocity-vs-acceleration\/\" target=\"_blank\" rel=\"noopener\" data-schema-attribute=\"\">Velocity Vs Acceleration<\/a>: All You Should Know About<\/p>\n<p><a title=\"Difference between Orbit and Orbital\" href=\"https:\/\/www.linquip.com\/blog\/difference-between-orbit-and-orbital\/\" target=\"_blank\" rel=\"noopener\" data-schema-attribute=\"\">Difference between Orbit and Orbital<\/a><\/div><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Equations_for_Speed_and_Velocity\"><\/span><strong>Equations for Speed and Velocity<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>As an object progresses, it often experiences speed changes. For instance, during an average school trip, there are many speed changes. Rather than the speed-o-meter keeping a steady reading, the needle continually moves up and down to indicate the stopping and starting and the accelerating and decelerating. One moment, the car may be moving at 80 km\/hr, and another moment, it might be terminated (i.e., 0 km\/hr).<\/p>\n<p>Still, during the school trip, the person might have an average speed of 32 km\/hr. The average speed during a complete motion can be thought of as the average of all speedometer readings. If the speedometer readings could be obtained at 1-second intervals and then averaged together, the average speed could be resolved.<\/p>\n<p>It is most straightforward to see the distinction between speed and velocity when you examine their equations. In order to measure the speed of an object(s), you should measure its distance (d) over time (t):<\/p>\n<p style=\"text-align: center;\"><span class=\"katex-eq\" data-katex-display=\"false\">s=d\/t<\/span>\n<p>&nbsp;<\/p>\n<p>Once you identify the object\u2019s speed, you can determine its velocity by calculating the displacement (d) over time (t):<\/p>\n<p style=\"text-align: center;\"><span class=\"katex-eq\" data-katex-display=\"false\">v=d\/t<\/span>\n<p>&nbsp;<\/p>\n<p>For instance, let us say that a car covers 100 kilometers in one hour. When you put in the equation, you get:<\/p>\n<p style=\"text-align: center;\"><span class=\"katex-eq\" data-katex-display=\"false\">s=100\/1=100 km\/hr<\/span>\n<p>&nbsp;<\/p>\n<p>So the car is traveling 100 kilometers per hour. But that equation does not inform you that much of that trip was in a circle, westward bound, and the car parks only 50 kilometers from where it began. So the velocity would be:<\/p>\n<p style=\"text-align: center;\"><span class=\"katex-eq\" data-katex-display=\"false\">v=50\/1=50 km\/hr west<\/span>\n<p>&nbsp;<\/p>\n<p>This knowledge may not seem straightforward for an everyday commuter, but it is imperative to know the distinction between the speed of an object and its velocity when studying physics. When they are the same value, the object has progressed in a straight line. Inconsistent values between speed and velocity designate that the object\u2019s path was not straight.<\/p>\n<p><strong style=\"color: #111111; font-family: Roboto, sans-serif; font-size: 27px;\">\u00a0Conclusion<\/strong><\/p>\n<p>Knowing how fast you are progressing or are capable of going, helps drivers, runners, cyclists, and anyone who can understand a speedometer. But speed is merely the starting point for many valuable concepts in physics. Check out additional resources on velocity, an excellent <a href=\"https:\/\/www.youtube.com\/watch?v=zhNzEj3Or98\" target=\"_blank\" rel=\"noopener\">video<\/a>\u00a0comparing speed vs velocity.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>When describing objects&#8217;\u00a0motion\u00a0in terms of distance, time, and direction, physicists use the fundamental quantities of\u00a0speed\u00a0vs\u00a0velocity. Two words, two separate meanings. Yet, not unusually, we hear these terms employed interchangeably. So, what&#8217;s the exception? Why is it inaccurate to utilize the terms\u00a0speed vs velocity\u00a0interchangeably? The same as distance and displacement, which have different meanings (despite their &#8230;<\/p>\n","protected":false},"author":11,"featured_media":4281,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","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":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[24],"tags":[],"class_list":["post-4278","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/posts\/4278","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/comments?post=4278"}],"version-history":[{"count":0,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/posts\/4278\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/media\/4281"}],"wp:attachment":[{"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/media?parent=4278"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/categories?post=4278"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/tags?post=4278"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}