{"id":6705,"date":"2024-04-15T02:32:55","date_gmt":"2024-04-15T02:32:55","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=6705"},"modified":"2024-04-15T02:32:55","modified_gmt":"2024-04-15T02:32:55","slug":"the-following-is-not-a-law-of-static-friction-a-the-force-of-friction-always-acts-in-a-direction-opposite-to-that-in-which-the-body-tends-to-move-b-the-force-of-friction-is-dependent-upon-the-area","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-following-is-not-a-law-of-static-friction-a-the-force-of-friction-always-acts-in-a-direction-opposite-to-that-in-which-the-body-tends-to-move-b-the-force-of-friction-is-dependent-upon-the-area\/","title":{"rendered":"The following is not a law of static friction: A. The force of friction always acts in a direction opposite to that in which the body tends to move B. The force of friction is dependent upon the area of contact C. The force of friction depends upon the roughness of the surface D. The magnitude of the limiting friction bears a constant ratio to the normal reaction between two surfaces"},"content":{"rendered":"<p>\r\n    <!-- Check if it's an AMP page -->\r\n            <!-- Non-AMP version -->\r\n        <div class=\"mcq-container\" data-quiz-id=\"quizState_6a9a8c6a34e50\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    The force of friction always acts in a direction opposite to that in which the body tends to move                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"true\">\r\n                    The force of friction is dependent upon the area of contact                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    The force of friction depends upon the roughness of the surface                <\/div>\r\n                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            \r\n            <!-- Feedback messages for non-AMP -->\r\n            <div class=\"feedback\" data-feedback=\"wrong\">Answer is Right!<\/div>\r\n            <div class=\"feedback\" data-feedback=\"right\">Answer is Wrong!<\/div>\r\n        <\/div>\r\n\r\n        <script>\r\n        document.addEventListener('DOMContentLoaded', function () {\r\n            var containers = document.querySelectorAll('.mcq-container');\r\n\r\n            containers.forEach(function(container) {\r\n                var options = container.querySelectorAll('.option');\r\n                var feedbackSelect = container.querySelector('[data-feedback=\"select\"]');\r\n                var feedbackWrong = container.querySelector('[data-feedback=\"wrong\"]');\r\n                var feedbackRight = container.querySelector('[data-feedback=\"right\"]');\r\n\r\n                options.forEach(function(option) {\r\n                    option.addEventListener('click', function() {\r\n                        var selectedOption = option.getAttribute('data-option-key');\r\n                        var isCorrect = option.getAttribute('data-is-correct') === 'true';\r\n\r\n                        \/\/ Remove previous selections\r\n                        options.forEach(function(opt) {\r\n                            opt.classList.remove('correct', 'incorrect');\r\n                        });\r\n\r\n                        \/\/ Add the correct\/incorrect class\r\n                        if (isCorrect) {\r\n                            option.classList.add('correct');\r\n                            feedbackRight.hidden = false;\r\n                            feedbackWrong.hidden = true;\r\n                        } else {\r\n                            option.classList.add('incorrect');\r\n                            feedbackRight.hidden = true;\r\n                            feedbackWrong.hidden = false;\r\n                        }\r\n\r\n                        \/\/ Hide select feedback\r\n                        feedbackSelect.hidden = true;\r\n                    });\r\n                });\r\n            });\r\n        });\r\n        <\/script>\r\n    \r\n    <!--more--><\/p>\n<p>The correct answer is: B. The force of friction is dependent upon the area of contact.<\/p>\n<p>The other options are all laws of static friction.<\/p>\n<ul>\n<li>Option A: The force of friction always acts in a direction opposite to that in which the body tends to move. This is because friction is a force that opposes motion.<\/li>\n<li>Option C: The force of friction depends upon the roughness of the surface. This is because the rougher the surface, the more points of contact there are between the two surfaces, and the greater the force of <div class=\"youtube-subscribe-container\">\r\n        <a href=\"https:\/\/www.youtube.com\/channel\/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1\" target=\"_blank\" class=\"youtube-subscribe-button\">\r\n            <span class=\"youtube-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\">\r\n                    <path d=\"M549.7 124.1c-6.3-23.7-24.8-42.3-48.3-48.6C458.8 64 288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> friction.<\/li>\n<li>Option D: The magnitude of the limiting friction bears a constant ratio to the normal reaction between two surfaces. This is known as Coulomb&#8217;s law of friction.<\/li>\n<\/ul>\n<p>The force of friction is not dependent upon the area of contact. This is because the force of friction is caused by the interaction of the microscopic asperities on the two surfaces. The area of contact does not affect the number or size of these asperities, and so it does not affect the force of friction.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Subscribe on YouTube<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[645],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The following is not a law of static friction: A. The force of friction always acts in a direction opposite to that in which the body tends to move B. 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