CBSE Class Notes, Worksheets, Question Answers, Diagrams , Definitions , Diffrence between , Maths Concepts, Science Facts Online – Classnotes123
Short answer questions. Why are machines used? Ans: A machine is a tool that makes our work easier . It helps us to overcome a larger force (required to move …
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What Are Machines There are many tasks that we cannot do ourselves, or we may need to put in a lot of time and effort to do them. To do …
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There are mainly 6 types of simple machines. A lever Pulley Wheel and axle Wedge Screw Inclined plane Lever A lever is a simple machine consisting of a rigid rod …
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Based on the position of the Fulcrum (pivot), Load, and Effort, Levers are of the following three kinds. First class Lever / Class one Lever (Load -Fulcrum – Effort …
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Force What is Force ? A force is a push or pull upon an object which results from the object’s interaction with another object. Whenever there is an interaction between …
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Types of Energy Mechanical Energy The energy of an object due to its motion or position is called mechanical energy. Example: a moving car or a hammer hitting a nail …
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Difference Between Work And Energy Work Energy Work is the …
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Long answer questions. 1. Write about the major bones present in our body. Answer – The skeleton consists of the skull, backbone, ribcage, limbs, jawbone, and girdle bones. Skull: The …
Class 5 – Bones and Muscles / The Skeletal System – Long Question Answers Read MoreShort answer questions – 1. Name the minerals present in our bones. Ans: The major minerals found in bone are calcium and phosphorus in the form of an insoluble salt …
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Question 1 . – What is the main function of Brain ? Ans 1 : The brain is an organ that’s made up of a large mass of nerve tissue …
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