Why Does A Sharp Knife Enable Us To Cut Through Things More Easily ...

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AnswerQuestion Answers for Class 12Class 12 BiologyClass 12 ChemistryClass 12 EnglishClass 12 MathsClass 12 PhysicsClass 12 Social ScienceClass 12 Business StudiesClass 12 EconomicsQuestion Answers for Class 11Class 11 EconomicsClass 11 Computer ScienceClass 11 BiologyClass 11 ChemistryClass 11 EnglishClass 11 MathsClass 11 PhysicsClass 11 Social ScienceClass 11 AccountancyClass 11 Business StudiesQuestion Answers for Class 10Class 10 ScienceClass 10 EnglishClass 10 MathsClass 10 Social ScienceClass 10 General KnowledgeQuestion Answers for Class 9Class 9 General KnowledgeClass 9 ScienceClass 9 EnglishClass 9 MathsClass 9 Social ScienceQuestion Answers for Class 8Class 8 ScienceClass 8 EnglishClass 8 MathsClass 8 Social ScienceQuestion Answers for Class 7Class 7 ScienceClass 7 EnglishClass 7 MathsClass 7 Social ScienceQuestion Answers for Class 6Class 6 ScienceClass 6 EnglishClass 6 MathsClass 6 Social ScienceQuestion Answers for Class 5Class 5 ScienceClass 5 EnglishClass 5 MathsClass 5 Social ScienceQuestion Answers for Class 4Class 4 ScienceClass 4 EnglishClass 4 MathsWhy does a sharp knife enable us to cut through things more easily?A. The pressure exerted is lesser when the same force is usedB. The pressure exerted is greater when the same force is used C. The sharp edge can pass through the material slowlyD. The sharp edge is not felt when cutting through the materialAnswerVerified577.8k+ viewsHint: In order to solve this problem, we should know the concept of pressure. Pressure is defined as the force exerted on an object through a small area.Complete step by step answer:A very thin edge surface consists in a sharp knife to its blade. Its dimension is made such that a Sharp knife is used to cut the objects very easily because to its Sharpe thin edge, within a small area we apply the force by our hands and the large pressure produced by the object. Because of this large pressure cuts the object in better.The knife exerts a greater pressure on the surface of the object due to the contact of a smaller area of cross section.$pressure = \dfrac{{force}}{{area}}$Hence the correct option is B.Additional information: The pressure exerted on a surface by an object increases as the weight of the object increases or the surface area of contact decreases. If the weight of the object decreases then the pressure exerted on the object also decreases as the surface area of the cross section which is in contact increases.Note: A blunt knife has a thicker edge. A blunt knife cannot cut an object easily because due to its large thickness at the edge of an object, the object produces lesser pressure because of the force applied by our hand on a larger area of the object. Hence the lesser pressure from the blunt knife cannot cut the object easily.Recently Updated PagesMaster Class 11 Business Studies: Engaging Questions & Answers for SuccessMaster Class 11 Computer Science: Engaging Questions & Answers for SuccessMaster Class 11 Economics: Engaging Questions & Answers for SuccessMaster Class 11 Social Science: Engaging Questions & Answers for SuccessMaster Class 11 English: Engaging Questions & Answers for SuccessMaster Class 11 Chemistry: Engaging Questions & Answers for SuccessMaster Class 11 Business Studies: Engaging Questions & Answers for SuccessMaster Class 11 Computer Science: Engaging Questions & Answers for SuccessMaster Class 11 Economics: Engaging Questions & Answers for SuccessMaster Class 11 Social Science: Engaging Questions & Answers for SuccessMaster Class 11 English: Engaging Questions & Answers for SuccessMaster Class 11 Chemistry: Engaging Questions & Answers for Success

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