Toppers Study Toppers Study Toppers StudyGet complete NCERT Solutions for 8 Science 11. Force And Pressure with detailed explanations. Easy-to-understand answers to help students study effectively and score better.
Get complete NCERT Solutions for 8 Science 11. Force And Pressure with detailed explanations. Easy-to-understand answers to help students study effectively and score better.
Preparing for exams becomes easier with Additional Questions With Solutions. Whether you are studying for board exams or mid-term exams, 8 Science Chapter 11. Force And Pressure solutions provide quick revising points, well-structured answers, and additional practice material to help you score better.
ncert_solutionsAdditional Questions With Solutions
Ques: Define force.
Ans: A push or a pull on an object is called a force.
Ques: Define muscular force.
Ans: The force resulting due to the action of muscles is known as the muscular force.
Ques: Write the kinds of force.
Ans: There are two kinds of force.
(i) Contact force
(ii) Non-contact force
Ques: What is contact force? Write its types.
Ans: Muscular force can be applied only when it is in contact with an object, it is also called a contact force.
This is two types.
(i) Muscular force – The force resulting due to the action of muscles is known as the muscular force.
(ii) Frictional force - The force acts opposite to the direction of motion and this is responsible for changing the state of motion of objects. It arises due to contact between the surfaces.
Ques: Why is frictional force known as contact force?
Ans: The frictional force known as contact force as it arises due to contact between the surfaces.
Ques: What is non-contact force? Write its types.
Ans: The force which is felt by the objects without any contact is known as non-contact force.
This is two types.
(i) Electrostatic force – The force exerted by a charged body on another charged or uncharged body is known as electrostatic force.
(ii) Gravitational force – Every object attracts each other and pulls toward itself. Such force which applied on objects is known as Gravitational force and gravitation
Ques: Define Pressure.
Ans: The force acting on a unit area of a surface is called pressure.
Ques: Why shoulder bags are provided with broad straps and not thin strap?
Ans: Broad straps reduce pressure on back. If the strap will be thin the value of pressure will be raised as per unit area of surface gets reduced.
Ques: Why have nails sharp edges?
Ans: Nails have sharp edge because if per unit area of surface is reduced the pressure on it is increased. Hence nails push easily.
Ques: What is atmosphere ?
Ans: Envelop of air is known as the atmosphere.
Ques: What is atmospheric pressure?
Ans: The pressure exerted by this air is known as atmospheric pressure.
Additional Questions With Solutions are created by experts to give step-by-step explanations. Around 60–70% of exam questions are based on NCERT concepts. Our 8 Science Chapter 11. Force And Pressure solutions help you understand the core concepts and practice effectively.
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Our Additional Questions With Solutions are useful for both board exams and mid-term exams. For 8 Science, we provide notes, exercises, and important Q&A so that you can revise smartly and write perfect answers in exams.
In short, Additional Questions With Solutions for 8 Science Chapter 11. Force And Pressure are a complete study package. With quick revising points, NCERT exercises, and additional important questions, you can prepare effectively for exams. Make these solutions your study companion and excel in your academic journey.
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