{"id":2095,"date":"2021-12-23T16:50:59","date_gmt":"2021-12-23T11:20:59","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=2095"},"modified":"2025-07-31T17:20:48","modified_gmt":"2025-07-31T11:50:48","slug":"ncert-solutions-for-class-8-science-chapter-11-reproduction-in-animals","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/science\/chapter-11-force-and-pressure\/","title":{"rendered":"NCERT Solutions for Class 8 Science Chapter 11 Force and Pressure"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_37 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\">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\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span 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style='display:block'><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/science\/chapter-11-force-and-pressure\/#Class_8_Science_Chapter_11_Force_and_Pressure\" title=\"Class 8 Science Chapter 11 Force and Pressure\">Class 8 Science Chapter 11 Force and Pressure<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/science\/chapter-11-force-and-pressure\/#NCERT_Solutions_for_Class_8_Science_All_Chapters\" title=\"NCERT Solutions for Class 8 Science All Chapters\">NCERT Solutions for Class 8 Science All Chapters<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/science\/chapter-11-force-and-pressure\/#NCERT_Class_8_Science_Chapter_11_Force_and_Pressure_PDF\" title=\"NCERT Class 8 Science Chapter 11 Force and Pressure PDF\">NCERT Class 8 Science Chapter 11 Force and Pressure PDF<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/science\/chapter-11-force-and-pressure\/#NCERT_Class_8_Science_Chapter_11_Question_with_Answers\" title=\"NCERT Class 8 Science Chapter 11 Question with Answers\">NCERT Class 8 Science Chapter 11 Question with Answers<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/science\/chapter-11-force-and-pressure\/#Class_8_Chapter_11_Science_MCQs\" title=\"Class 8 Chapter 11 Science MCQs\">Class 8 Chapter 11 Science MCQs<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/science\/chapter-11-force-and-pressure\/#What_Are_the_Features_of_INFINITY_LEARN_Study_Material_for_Students\" title=\"What Are the Features of INFINITY LEARN Study Material for Students?\">What Are the Features of INFINITY LEARN Study Material for Students?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/science\/chapter-11-force-and-pressure\/#Class_8_Science_Chapter_11_FAQs\" title=\"Class 8 Science Chapter 11 FAQs\">Class 8 Science Chapter 11 FAQs<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/science\/chapter-11-force-and-pressure\/#What_is_covered_in_NCERT_Class_8_Science_Chapter_11_on_Force_and_Pressure\" title=\"What is covered in NCERT Class 8 Science Chapter 11 on Force and Pressure?\">What is covered in NCERT Class 8 Science Chapter 11 on Force and Pressure?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/science\/chapter-11-force-and-pressure\/#Why_are_the_NCERT_Solutions_for_this_chapter_important\" title=\"Why are the NCERT Solutions for this chapter important?\">Why are the NCERT Solutions for this chapter important?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/science\/chapter-11-force-and-pressure\/#How_can_the_NCERT_Solutions_for_Class_8_Science_Chapter_11_help_students\" title=\"How can the NCERT Solutions for Class 8 Science Chapter 11 help students?\">How can the NCERT Solutions for Class 8 Science Chapter 11 help students?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/science\/chapter-11-force-and-pressure\/#Where_can_I_find_the_NCERT_Solutions_for_Class_8_Science_Chapter_11_on_Force_and_Pressure\" title=\"Where can I find the NCERT Solutions for Class 8 Science Chapter 11 on Force and Pressure?\">Where can I find the NCERT Solutions for Class 8 Science Chapter 11 on Force and Pressure?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p><strong>NCERT Solutions for Class 8 Science Chapter 11<\/strong> provide clear and easy-to-understand answers to the questions in the chapter. This chapter, called &#8220;Force and Pressure,&#8221; talks about the different types of forces and how they affect things. The solutions give step-by-step explanations, examples, and practice problems to help students learn the concepts better. By using the <strong><a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/science\/\">NCERT Solutions for Class 8 Science<\/a><\/strong> Chapter 11, students can improve their understanding of the chapter, practice more, and do well in their exams.<\/p>\n<p><strong>NCERT Solutions for Class 8 Science Chapter 11<\/strong> cover all the important topics related to force and pressure. They include answers to the questions given in the <strong>NCERT textbook for Class 8 Science Chapter 11<\/strong>. These solutions are very helpful for students who want to learn more about the chapter and get good marks in their exams. The solutions are available in PDF format and can be easily downloaded from various websites. Students can use these solutions to prepare for their exams and improve their understanding of <a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/\"><strong>NCERT Solutions<\/strong><\/a> concepts covered in Class 8 Science Chapter 11.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Class_8_Science_Chapter_11_Force_and_Pressure\"><\/span>Class 8 Science Chapter 11 Force and Pressure<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>NCERT Solutions for Class 8 Science Chapter 11 Force and Pressure<\/strong> can help you understand the different parts of this chapter better. This will make it easier for you to answer questions from this chapter. You&#8217;ll find questions about the force that is applied, how objects change shape, and other topics in this chapter. Some important questions, like the difference between force and pressure, are often asked in exams and are explained in detail in the provided solutions.<\/p>\n<p>Other important topics covered in this chapter include objects and force. Practicing these types of questions will help you understand the chapter better. You can get the <strong>NCERT Class 8 Science Chapter 11 Force and Pressure solutions in PDF<\/strong> format for free. This PDF version can be used offline and is available for free. Now you can get the free PDF solution to help you study this chapter.<\/p>\n<p style=\"text-align: center;\"><strong>Also Check &#8211; <a href=\"https:\/\/infinitylearn.com\/surge\/cbse\/cbse-class-8-science-syllabus\/\" target=\"_blank\" rel=\"noopener\">CBSE Syllabus for Class 8 Science<\/a><\/strong><\/p>\n<p>NCERT Solutions for Class 8 Science Chapter 11 &#8220;Force and Pressure&#8221; are very helpful for students who want to learn more about this chapter and do well in their exams. The solutions cover all the important topics related to force and pressure and include answers to the questions given in the <a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-books\/\"><strong>NCERT textbook<\/strong><\/a>. These solutions are available in PDF format and can be easily downloaded from various websites. Students can use these solutions to prepare for their exams and improve their understanding of the concepts covered in Class 8 Science Chapter 11.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Class_8_Science_All_Chapters\"><\/span>NCERT Solutions for Class 8 Science All Chapters<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Chapter 1 Crop Production and Management<\/strong><\/li>\n<li><strong>Chapter 2 Microorganisms: Friend and Foe <\/strong><\/li>\n<li><strong>Chapter 3 Synthetic Fibres and Plastics <\/strong><\/li>\n<li><strong>Chapter 4 Materials: Metals and Non-Metals <\/strong><\/li>\n<li><strong>Chapter 5 Coal and Petroleum <\/strong><\/li>\n<li><strong>Chapter 6 Combustion and Flame<\/strong><\/li>\n<li><strong>Chapter 7 Conservation of Plants and Animals <\/strong><\/li>\n<li><strong>Chapter 8 Cell \u2013 Structure and Functions <\/strong><\/li>\n<li><strong>Chapter 9 Reproduction in Animals <\/strong><\/li>\n<li><strong>Chapter 10 Reaching the Age of Adolescence <\/strong><\/li>\n<li><strong>Chapter 11 Force and Pressure<\/strong><\/li>\n<li><strong>Chapter 12 Friction <\/strong><\/li>\n<li><strong>Chapter 13 Sound <\/strong><\/li>\n<li><strong>Chapter 14 Chemical Effects of Electric Current <\/strong><\/li>\n<li><strong>Chapter 15 Some Natural Phenomena <\/strong><\/li>\n<li><strong>Chapter 16 Light<\/strong><\/li>\n<li><strong>Chapter 17 Stars and the Solar System <\/strong><\/li>\n<li><strong>Chapter 18 Pollution of Air and Water<\/strong><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Class_8_Science_Chapter_11_Force_and_Pressure_PDF\"><\/span><strong>NCERT Class 8 Science Chapter 11 Force and Pressure PDF<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>NCERT Class 8 Science Chapter 11 on &#8220;Force and Pressure&#8221; provides important information about the different types of forces and how they affect things around us. The chapter explains the relationship between force and pressure, and how these concepts are used in our daily lives. The PDF version of the solutions is easy to understand and helps students learn the chapter effectively.<\/p>\n\n\t\t<div class=\"download-pdf-container\">\n\t\t\t<span class=\"title\">Do you need help with your Homework? 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wpcf7-validates-as-required wpcf7-validates-as-number\" aria-required=\"true\" aria-invalid=\"false\" \/><\/span><\/p>\n<p><span style=\"display:none;\"><span class=\"wpcf7-form-control-wrap current-page-url\"><input type=\"text\" name=\"current-page-url\" value=\"https:\/\/_:443\/surge\/wp-json\/wp\/v2\/posts\/2095\" size=\"40\" class=\"wpcf7-form-control wpcf7dtx-dynamictext wpcf7-dynamictext\" aria-invalid=\"false\" \/><\/span><\/span><\/p>\n<style>.wpcf7-list-item{margin: 0 0.5em 0 0!important;}<\/style>\n<p class=\"title\" style=\"color: #6e6e6e;font-size:14px;font-weight:400;text-decoration: un;\"><span class=\"wpcf7-form-control-wrap acceptance-agreement\"><span class=\"wpcf7-form-control wpcf7-acceptance\"><span class=\"wpcf7-list-item\"><input type=\"checkbox\" name=\"acceptance-agreement\" value=\"1\" aria-invalid=\"false\" checked=\"checked\" \/><\/span><\/span><\/span> I agree to the <a target=\"_blank\" href=\"https:\/\/infinitylearn.com\/terms\" style=\"text-decoration: underline;\">terms and conditions<\/a> and <a target=\"_blank\" href=\"https:\/\/infinitylearn.com\/privacy\" style=\"text-decoration: underline;\">privacy policy<\/a>.<\/p>\n<p><input type=\"button\" style=\"cursor:pointer;width:auto;\" class=\"il_otp_submit\" value=\"Get OTP\" onclick=\"sendCF7OTP(this, otp_phone.value, user_name.value)\"><\/p>\n<div class=\"form-submit-btn-div\" style=\"display:none;\">\n<input type=\"submit\" value=\"Download PDF\" class=\"wpcf7-form-control has-spinner wpcf7-submit download-pdf-submit\" \/>\n<\/div>\n<\/div>\n<div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div><\/form><\/div>\n\t\t\t\t\t<span class=\"pdf-link hidden\" data-pdf=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/securepdfs\/2022\/05\/FORCE-PRESSURE.pdf\"><\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"bg-overlay\"><\/div>\n\t\t<\/div>\n\t\t<a href=\"\/surge\/?pdfemb-serveurl=https%3A%2F%2Finfinitylearn.com%2Fsurge%2Fwp-content%2Fuploads%2Fsecurepdfs%2F2022%2F05%2FFORCE-PRESSURE.pdf\" class=\"pdfemb-viewer\" style=\"\" data-width=\"max\" data-height=\"max\" data-mobile-width=\"0\"  data-scrollbar=\"both\" data-download=\"off\" data-tracking=\"on\" data-newwindow=\"on\" data-pagetextbox=\"off\" data-scrolltotop=\"on\" data-startzoom=\"100\" data-startfpzoom=\"100\" data-download-nonce=\"6fab5a7227\" data-disablerightclick=\"on\" data-toolbar=\"top\" data-toolbar-fixed=\"on\">FORCE &amp; PRESSURE<br\/><\/a>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Class_8_Science_Chapter_11_Question_with_Answers\"><\/span>NCERT Class 8 Science Chapter 11 Question with Answers<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Ques: What is force?<\/strong><\/p>\n<p><strong>Ans:<\/strong> Force is a push or pull acting upon an object as a result of its interaction with another object. Force can cause an object to move, stop, or change its direction or shape.<\/p>\n<p><strong>Ques: Define pressure.<\/strong><\/p>\n<p><strong>Ans:<\/strong> Pressure is defined as the force exerted per unit area. It is calculated using the formula:<\/p>\n<p>Pressure=Force\/Area<\/p>\n<p>The SI unit of pressure is pascal (Pa).<\/p>\n<p><strong>Ques: What is the SI unit of force?<\/strong><\/p>\n<p><strong>Ans:<\/strong> The SI unit of force is the newton (N).<\/p>\n<p><strong>Ques: Explain the difference between contact and non-contact forces with examples.<\/strong><\/p>\n<p><strong>Ans:<\/strong> Contact forces are forces that act on objects through physical contact. Examples include friction, tension, and normal force. Non-contact forces act on objects without physical contact. Examples include gravitational force, magnetic force, and electrostatic force.<\/p>\n<p><strong>Ques: What is atmospheric pressure?<\/strong><\/p>\n<p><strong>Ans:<\/strong> Atmospheric pressure is the pressure exerted by the weight of the atmosphere on the Earth&#8217;s surface. It decreases with altitude and is measured using a barometer.<\/p>\n<p><strong>Ques: Describe how pressure changes with depth in a liquid.<\/strong><\/p>\n<p><strong>Ans:<\/strong> Pressure in a liquid increases with depth due to the weight of the liquid above. The deeper you go, the greater the pressure because of the increased weight of the liquid column above the point of measurement.<\/p>\n<p><strong>Ques: Why do sharp knives cut better than blunt knives?<\/strong><\/p>\n<p><strong>Ans:<\/strong> Sharp knives cut better than blunt knives because they have a smaller surface area at the cutting edge. This means that for the same force applied, the pressure exerted by a sharp knife is greater than that of a blunt knife, making it easier to cut.<\/p>\n<p><strong>Ques: Explain the term &#8216;thrust&#8217; with an example.<\/strong><\/p>\n<p><strong>Ans:<\/strong> Thrust is the force exerted perpendicular to the surface of an object. For example, when you push a book lying on a table, the force you apply perpendicular to the surface of the book is called thrust.<\/p>\n<p><strong>Ques: What is the relationship between pressure and area for a given force?<\/strong><\/p>\n<p><strong>Ans:<\/strong> For a given force, pressure is inversely proportional to the area over which the force is applied. This means that as the area decreases, the pressure increases, and vice versa.<\/p>\n<p><strong>Ques: How does a hydraulic lift work?<\/strong><\/p>\n<p><strong>Ans:<\/strong> A hydraulic lift works on the principle of Pascal&#8217;s law, which states that pressure applied to a confined fluid is transmitted equally in all directions. In a hydraulic lift, a small force applied to a small-area piston generates a much larger force on a large-area piston, allowing heavy objects to be lifted with relatively little effort.<\/p>\n<p style=\"text-align: center;\"><strong>Also Check &#8211; <a href=\"https:\/\/infinitylearn.com\/surge\/blog\/how-to-score-100-percent-marks-in-class-8-science-exams\/\" target=\"_blank\" rel=\"noopener\">How to Score 100 Percent Marks in Class 8 Science Exams?<\/a><\/strong><\/p>\n<p><strong>Ques: Why does a balloon expand when air is blown into it?<\/strong><\/p>\n<p><strong>Ans:<\/strong> A balloon expands when air is blown into it because the air pressure inside the balloon increases. This increased pressure pushes against the inner walls of the balloon, causing it to stretch and expand.<\/p>\n<p><strong>Ques: Define buoyant force and explain its significance.<\/strong><\/p>\n<p><strong>Ans:<\/strong> Buoyant force is the upward force exerted by a fluid on an object immersed in it. It is significant because it determines whether an object will float or sink. If the buoyant force is equal to or greater than the weight of the object, the object will float; otherwise, it will sink.<\/p>\n<p><strong>Ques: How do snowshoes help a person walk on snow without sinking?<\/strong><\/p>\n<p><strong>Ans:<\/strong> Snowshoes help a person walk on snow without sinking by increasing the surface area over which their weight is distributed. This reduces the pressure exerted on the snow, preventing them from sinking.<\/p>\n<p><strong>Ques: What is the principle behind the working of a barometer?<\/strong><\/p>\n<p><strong>Ans:<\/strong> The principle behind the working of a barometer is atmospheric pressure. A barometer measures atmospheric pressure using a column of mercury or other liquid. The height of the liquid column changes with changes in atmospheric pressure.<\/p>\n<p><strong>Ques: Explain how pressure is transmitted in fluids.<\/strong><\/p>\n<p><strong>Ans:<\/strong> Pressure is transmitted in fluids equally in all directions. This is described by Pascal&#8217;s law, which states that when pressure is applied to a confined fluid, the pressure change is transmitted equally throughout the fluid. This principle is used in hydraulic systems.<\/p>\n<div class=\"table-responsive\">\n<table class=\"table table-bordered table-striped\" cellspacing=\"0\" cellpadding=\"5\">\n<tbody>\n<tr style=\"background-color: #89cff0; color: black;\">\n<td style=\"text-align: center;\" colspan=\"2\"><a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/\"><strong>NCERT Solutions for Class 8 All Subjects<\/strong><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/maths\/\"><strong>NCERT Solutions for Class 8 Maths<\/strong><\/a><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/science\/\"><strong>NCERT Solutions for Class 8 Science<\/strong><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><strong><a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/social-science\/\">NCERT Solutions for Class 8 Social Science<\/a><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/english\/\">NCERT Solutions for Class 8 English<\/a><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Class_8_Chapter_11_Science_MCQs\"><\/span>Class 8 Chapter 11 Science MCQs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Ques: Which of the following is a non-contact force?<\/strong><\/p>\n<p>A) Friction<\/p>\n<p>B) Tension<\/p>\n<p>C) Magnetic force<\/p>\n<p>D) Normal force<\/p>\n<p><strong>Ans:<\/strong> C) Magnetic force<\/p>\n<p><strong>Explanation:<\/strong> Magnetic force is a non-contact force because it can act on objects without physical contact.<\/p>\n<p><strong>Ques: What is the SI unit of pressure?<\/strong><\/p>\n<p>A) Newton<\/p>\n<p>B) Pascal<\/p>\n<p>C) Joule<\/p>\n<p>D) Watt<\/p>\n<p><strong>Ans:<\/strong> B) Pascal<\/p>\n<p><strong>Explanation:<\/strong> The SI unit of pressure is pascal (Pa), which is equal to one newton per square meter.<\/p>\n<p><strong>Ques: Which of the following statements is true about atmospheric pressure?<\/strong><\/p>\n<p>A) It increases with altitude<\/p>\n<p>B) It remains constant with altitude<\/p>\n<p>C) It decreases with altitude<\/p>\n<p>D) It is not affected by altitude<\/p>\n<p><strong>Ans:<\/strong> C) It decreases with altitude<\/p>\n<p><strong>Explanation:<\/strong> Atmospheric pressure decreases with altitude because the density of air decreases as we go higher.<\/p>\n<p><strong>Ques: Which instrument is used to measure atmospheric pressure?<\/strong><\/p>\n<p>A) Thermometer<\/p>\n<p>B) Barometer<\/p>\n<p>C) Hygrometer<\/p>\n<p>D) Anemometer<\/p>\n<p><strong>Ans:<\/strong> B) Barometer<\/p>\n<p><strong>Explanation:<\/strong> A barometer is used to measure atmospheric pressure.<\/p>\n<p><strong>Ques: What happens to the pressure if the area over which a force is applied is increased?<\/strong><\/p>\n<p>A) Pressure increases<\/p>\n<p>B) Pressure decreases<\/p>\n<p>C) Pressure remains the same<\/p>\n<p>D) Pressure first increases and then decreases<\/p>\n<p><strong>Ans:<\/strong> B) Pressure decreases<\/p>\n<p><strong>Explanation:<\/strong> Pressure is inversely proportional to the area over which a force is applied. If the area increases, the pressure decreases.<\/p>\n<p><strong>Ques: Which of the following is an example of a contact force?<\/strong><\/p>\n<p>A) Gravitational force<\/p>\n<p>B) Electrostatic force<\/p>\n<p>C) Magnetic force<\/p>\n<p>D) Friction<\/p>\n<p><strong>Ans:<\/strong> D) Friction<\/p>\n<p><strong>Explanation:<\/strong> Friction is a contact force because it acts on objects in contact with each other.<\/p>\n<p><strong>Ques: What is the effect of applying force on an object?<\/strong><\/p>\n<p>A) It can change the shape of the object<\/p>\n<p>B) It can change the direction of motion<\/p>\n<p>C) It can start or stop the motion<\/p>\n<p>D) All of the above<\/p>\n<p><strong>Ans:<\/strong> D) All of the above<\/p>\n<p><strong>Explanation:<\/strong> Applying force can change the shape, direction of motion, and can start or stop the motion of an object.<\/p>\n<p><strong>Ques: When you press a balloon, which force acts on it to change its shape?<\/strong><\/p>\n<p>A) Gravitational force<\/p>\n<p>B) Frictional force<\/p>\n<p>C) Applied force<\/p>\n<p>D) Magnetic force<\/p>\n<p><strong>Ans:<\/strong> C) Applied force<\/p>\n<p><strong>Explanation:<\/strong> The applied force changes the shape of the balloon when you press it.<\/p>\n<p><strong>Ques: Which of the following factors does not affect the pressure exerted by a liquid?<\/strong><\/p>\n<p>A) Depth of the liquid<\/p>\n<p>B) Density of the liquid<\/p>\n<p>C) Surface area of the liquid<\/p>\n<p>D) Shape of the container<\/p>\n<p><strong>Ans:<\/strong> D) Shape of the container<\/p>\n<p><strong>Explanation:<\/strong> The shape of the container does not affect the pressure exerted by a liquid; pressure depends on the depth and density of the liquid.<\/p>\n<p><strong>Ques: Which law explains the working principle of a hydraulic lift?<\/strong><\/p>\n<p>A) Newton&#8217;s first law<\/p>\n<p>B) Pascal&#8217;s law<\/p>\n<p>C) Archimedes&#8217; principle<\/p>\n<p>D) Boyle&#8217;s law<\/p>\n<p><strong>Ans:<\/strong> B) Pascal&#8217;s law<\/p>\n<p><strong>Explanation:<\/strong> Pascal&#8217;s law states that pressure applied to a confined fluid is transmitted equally in all directions, which is the principle behind hydraulic lifts.<\/p>\n<p><strong>Ques: What is the relationship between pressure and depth in a liquid?<\/strong><\/p>\n<p>A) Pressure decreases with depth<\/p>\n<p>B) Pressure remains constant with depth<\/p>\n<p>C) Pressure increases with depth<\/p>\n<p>D) Pressure is independent of depth<\/p>\n<p><strong>Ans:<\/strong> C) Pressure increases with depth<\/p>\n<p><strong>Explanation:<\/strong> In a liquid, pressure increases with depth due to the weight of the liquid above.<\/p>\n<p><strong>Ques: Which of the following is not a unit of pressure?<\/strong><\/p>\n<p>A) Pascal<\/p>\n<p>B) Newton per square meter<\/p>\n<p>C) Atmosphere<\/p>\n<p>D) Newton per meter<\/p>\n<p><strong>Ans:<\/strong> D) Newton per meter<\/p>\n<p><strong>Explanation:<\/strong> Newton per meter is not a unit of pressure. Pressure units include pascal, newton per square meter, and atmosphere.<\/p>\n<p><strong>Ques: Why do deep-sea divers wear special suits?<\/strong><\/p>\n<p>A) To keep warm<\/p>\n<p>B) To withstand high pressure<\/p>\n<p>C) To swim faster<\/p>\n<p>D) To breathe underwater<\/p>\n<p><strong>Ans:<\/strong> B) To withstand high pressure<\/p>\n<p><strong>Explanation:<\/strong> Deep-sea divers wear special suits to protect themselves from the high pressure exerted by the surrounding water at great depths.<\/p>\n<p><strong>Ques: Which of the following statements about friction is true?<\/strong><\/p>\n<p>A) Friction acts in the direction of motion<\/p>\n<p>B) Friction acts in the opposite direction of motion<\/p>\n<p>C) Friction acts perpendicular to the direction of motion<\/p>\n<p>D) Friction does not affect motion<\/p>\n<p><strong>Ans:<\/strong> B) Friction acts in the opposite direction of motion<\/p>\n<p><strong>Explanation:<\/strong> Friction always acts in the opposite direction to the direction of motion.<\/p>\n<p><strong>Ques: How is thrust related to pressure?<\/strong><\/p>\n<p>A) Thrust is the force per unit area<\/p>\n<p>B) Pressure is the force per unit area<\/p>\n<p>C) Thrust and pressure are unrelated<\/p>\n<p>D) Thrust is always greater than pressure<\/p>\n<p><strong>Ans:<\/strong> B) Pressure is the force per unit area<\/p>\n<p><strong>Explanation:<\/strong> Pressure is defined as the force (thrust) exerted per unit area.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_Are_the_Features_of_INFINITY_LEARN_Study_Material_for_Students\"><\/span>What Are the Features of INFINITY LEARN Study Material for Students?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>INFINITY LEARN study material is available for every subject and every class, not just Science. Our subject experts have taken care of each topic. All of the solutions are well-designed for pupils, and they all follow CBSE requirements. Every subject&#8217;s theme has been structured, and all study materials and exam papers have been written properly. It will make it simple for pupils to discover a solution to any challenge. We&#8217;ve also included a few more questions to help you grasp the topic better.<\/p>\n<p>If you are not satisfied with the solutions and require more assistance in resolving your problems, our in-house experts are ready 24 hours a day, 7 days a week to assist you. Now is the time to download our INFINITY LEARN app and get all of your questions answered.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Class_8_Science_Chapter_11_FAQs\"><\/span>Class 8 Science Chapter 11 FAQs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"What_is_covered_in_NCERT_Class_8_Science_Chapter_11_on_Force_and_Pressure\"><\/span>What is covered in NCERT Class 8 Science Chapter 11 on Force and Pressure?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tThe chapter covers the concepts of force, different types of forces, the relationship between force and pressure, and how these principles apply in real-life situations. \t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"Why_are_the_NCERT_Solutions_for_this_chapter_important\"><\/span>Why are the NCERT Solutions for this chapter important?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\t NCERT Solutions provide detailed, step-by-step explanations and examples to help students better understand the concepts covered in the chapter. They also include practice problems to reinforce learning.\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"How_can_the_NCERT_Solutions_for_Class_8_Science_Chapter_11_help_students\"><\/span>How can the NCERT Solutions for Class 8 Science Chapter 11 help students?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tThe solutions help students improve their understanding of the chapter, prepare for exams, and develop problem-solving skills. They cover all the important topics and questions from the NCERT textbook. \t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"Where_can_I_find_the_NCERT_Solutions_for_Class_8_Science_Chapter_11_on_Force_and_Pressure\"><\/span>Where can I find the NCERT Solutions for Class 8 Science Chapter 11 on Force and Pressure?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tThe NCERT Solutions are available online Infinity Learn educational websites and can be downloaded in PDF format for free. \t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\n<script type=\"application\/ld+json\">\n\t{\n\t\t\"@context\": \"https:\/\/schema.org\",\n\t\t\"@type\": \"FAQPage\",\n\t\t\"mainEntity\": [\n\t\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What is covered in NCERT Class 8 Science Chapter 11 on Force and Pressure?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"The chapter covers the concepts of force, different types of forces, the relationship between force and pressure, and how these principles apply in real-life situations.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Why are the NCERT Solutions for this chapter important?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"NCERT Solutions provide detailed, step-by-step explanations and examples to help students better understand the concepts covered in the chapter. They also include practice problems to reinforce learning.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"How can the NCERT Solutions for Class 8 Science Chapter 11 help students?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"The solutions help students improve their understanding of the chapter, prepare for exams, and develop problem-solving skills. They cover all the important topics and questions from the NCERT textbook.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Where can I find the NCERT Solutions for Class 8 Science Chapter 11 on Force and Pressure?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"The NCERT Solutions are available online Infinity Learn educational websites and can be downloaded in PDF format for free.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t\t\t\t]\n\t}\n<\/script>\n\n","protected":false},"excerpt":{"rendered":"<p>NCERT Solutions for Class 8 Science Chapter 11 provide clear and easy-to-understand answers to the questions in the chapter. This [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"NCERT Solutions for Class 8 Science Chapter 11","_yoast_wpseo_title":"NCERT Solutions for Class 8 Science Chapter 11 Force and Pressure PDF","_yoast_wpseo_metadesc":"Explore the NCERT Solutions for Class 8 Science Chapter 11 \"Force and Pressure.\" These solutions provide easy-to-understand explanations, examples, and practice problems to help students master the concepts of force, pressure, and their real-world applications.","custom_permalink":"study-materials\/ncert-solutions\/class-8\/science\/chapter-11-force-and-pressure\/"},"categories":[19,76],"tags":[],"table_tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NCERT Solutions for Class 8 Science Chapter 11 Force and Pressure 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