{"id":3951,"date":"2023-01-09T10:41:22","date_gmt":"2023-01-09T10:41:22","guid":{"rendered":"https:\/\/8thclass.deltapublications.in\/?page_id=3951"},"modified":"2024-11-25T11:35:03","modified_gmt":"2024-11-25T11:35:03","slug":"s-11-h-pressure","status":"publish","type":"page","link":"https:\/\/8thclass.deltapublications.in\/index.php\/s-11-h-pressure\/","title":{"rendered":"s-11.h Pressure"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-huge-font-size\" style=\"color:#00056d;text-transform:uppercase\"><strong>Pressure<\/strong><\/h2>\n\n\n<div class=\"wp-block-image is-resized\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"580\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/09\/Pressure-1024x580.png\" alt=\"\" class=\"wp-image-11822\" style=\"width:401px;height:auto\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/09\/Pressure-1024x580.png 1024w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/09\/Pressure-300x170.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/09\/Pressure-768x435.png 768w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/09\/Pressure.png 1356w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p class=\"has-text-color has-link-color has-huge-font-size wp-elements-d8d90926adfaafde2192b66c5d83431c\" style=\"color:#74008b\">key notes:<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>Definition of Pressure:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Pressure is a force applied per unit area.<\/li>\n\n\n\n<li class=\"has-large-font-size\">Mathematically, pressure (P) is defined as P = Force (F) \/ Area (A).<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Units of Pressure:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">The SI unit of pressure is the Pascal (Pa), which is equal to one Newton per square meter (1 N\/m\u00b2).<\/li>\n\n\n\n<li class=\"has-large-font-size\">Other common units of pressure include atmospheres (atm), millimeters of mercury (mmHg), and pounds per square inch (psi).<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Factors Affecting Pressure:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li class=\"has-large-font-size\"><strong>Force:<\/strong> An increase in force applied to a given area will result in an increase in pressure.<\/li>\n\n\n\n<li class=\"has-large-font-size\"><strong>Area:<\/strong> Decreasing the area over which a force is applied will increase the pressure, while increasing the area will decrease the pressure.<\/li>\n<\/ol>\n\n\n\n<p class=\"has-large-font-size\"><strong>Pressure in Fluids:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Liquids and gases are both considered fluids.<\/li>\n\n\n\n<li class=\"has-large-font-size\">Pressure in a fluid is transmitted equally in all directions (Pascal&#8217;s principle).<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Hydraulic Systems:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Hydraulic systems use the principle of transmitting force through a fluid to accomplish various tasks.<\/li>\n\n\n\n<li class=\"has-large-font-size\">These systems are commonly used in machines, like car brakes and hydraulic lifts.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Atmospheric Pressure:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Atmospheric pressure is the pressure exerted by the weight of the Earth&#8217;s atmosphere on objects at or near the Earth&#8217;s surface.<\/li>\n\n\n\n<li class=\"has-large-font-size\">The standard atmospheric pressure at sea level is about 101.3 kPa.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Measuring Pressure:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Common devices used to measure pressure include barometers (for atmospheric pressure) and manometers (for fluid pressure).<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Applications of Pressure:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Pressure is used in various applications, such as in scuba diving, weather forecasting, and the functioning of everyday items like tires and spray bottles.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Effects of Pressure on Matter:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Pressure can change the state of matter. For example, increasing the pressure can turn a gas into a liquid (compression) or a liquid into a solid (freezing).<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Pressure and Human Health:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Changes in pressure can affect the human body, which is why decompression sickness (the bends) can occur in scuba diving at great depths.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\"><strong>Let&#8217;s practice!<\/strong><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/82635\/884\/134\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-109.png\" alt=\"\" class=\"wp-image-7850\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-109.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-109-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-109-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/81649\/283\/554\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-108.png\" alt=\"\" class=\"wp-image-7851\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-108.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-108-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-108-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Pressure key notes: Definition of Pressure: Units of Pressure: Factors Affecting Pressure: Pressure in Fluids: Hydraulic Systems: Atmospheric Pressure: Measuring Pressure: Applications of Pressure: Effects of Pressure on Matter: Pressure and Human Health: Let&#8217;s practice!<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-3951","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_hostinger_reach_plugin_has_subscription_block":false,"_hostinger_reach_plugin_is_elementor":false,"_links":{"self":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3951","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3951"}],"version-history":[{"count":16,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3951\/revisions"}],"predecessor-version":[{"id":18983,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3951\/revisions\/18983"}],"wp:attachment":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3951"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}