CBSE ADDA

Class IX Physics + Chemistry First Term Examination 2012-2013 General Instructions:- Time- 2 hrs        MM: 50 1. Question 1 to 10very short answer questions of 1 mark each 2. Question no 11 to 16 are short answer questions of 2 marks each 3. Question no 17 to 22 are also short answer question carrying 3marks each 4. Question no 23 and 24 are long answer question carrying 5 marks. 1. What is the name given to the material which makes everything in the universe, in and Around us? 2. What do you mean by the term ‘Pure substance’? 3. What does odometer of an automobile measure? 4. Which has more inertia - A bicycle or a train? 5. Define sublimation. 6. What is the nature of distance time graph for uniform motion of an object? 7. What is the acceleration of free fall? 8. Define acceleration? Give its units. 9. Zinc is present in the laboratory in the form of (a) fillings (b) granules(c

Question on  Class IX  »  Science  »  Gravitation  » The Universal Law Of Gravitation. Q.1. When we move from the poles to the equator. Hence, the value of ‘ g ’ decreases.  Why Ans: The shape of earth is an ellipse so when we move from the poles to the equator the radius of the earth R increases. Hence, the value of ‘   g   ’ decreases because value 'g' is inversely proportional to the radius of earth. g = GM/R 2 Q. 2. What is the diffrence between centrifugal force and centripetal force? Ans: Centripetal Force            (i) It is the force that keeps a body in circular path. (ii) It acts toward the center. Centrifugal Force (i) It is the pseudo force that tries to make a body fly off the circular path.  (ii) It acts outward the center. Q.3. Explain :Centrifugal force and Centripetal force? Ans: A force which is required to move a body uniformly in a circle is known a

Sample Papers    Session 2013-2014 Sample Questions and Design of Question Paper for Board Exam  (Summative Assessment-II) Class X Class XII Hindi Part: A                         Sanskrit Hindi A Hindi Part: B Hindi Core   Hindi Part: B English Elective English Core English Functional         English Comm.    English Language & Liter.   Mathematics Geography Economics    Social Science Chemistry Biology Physics   Mathematics Accountancy History Entrepreneurship    Science For mare paper visit sample paper   solved/unsolved practice paper Class X Model  Answer CBSE Exam.2013 Class X Model  Answer CBSE Exam.2012 MARKING SCHEME FOR [2013] SUMMATIVE  ASSESSMENT – II 1.Science 1.Science Hindi Part: A            Hindi Part: B 2.Social Science 2.Social Science   English Communicative     3.Mathematics