CBSE ADDA

JSUNIL TUTORIAL  PUNJABI COLONY GALI NO. 01 C.B.S.E.-2012-Sample-Papers-for-IX-Physics + Chemistry-Summative-Assessment-I                                       Physics (Section A) 1. Give an example of situation: one object with a constant acceleration but with a zero velocity.          1-marks 2. Define Inertia  2-marks 3. A motor boat starting from rest on a lake accelerates in a straight line at a constant rate of 3m/s2 for 8s. How far does the boat travel during this time?   2-marks 4. Differentiate between distance and displacement.                       3-marks 5. Drive the equation for Newton’s second law of motion.              3-marks 6. A stone of 1 kg is thrown with a velocity of 20 m/s across the frozen surface of a lake comes to rest after travelling a distance of 50m. What is the force of friction between the stone and the ice?                                                

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

       C.B.S.E.2012-Sample-Papers For SA-1  IX-Physics: Chemistry : Biology : Mathematics C.B.S.E.-2012-Sample-Papers-for-IX-Physics-(5-Sets)-Summative-Assessement-I Download File C.B.S.E.-2012-Sample-Papers-for-IX-Chemistry-(5-Sets)-Summative-Assessement-I Download File C.B.S.E.-2012-Sample-Papers-for-IX-Biology-(5-Sets)-Summative-Assessement-I Download File C.B.S.E.-2012-Sample-Papers-for-IX-Science  Set-1 -Summative-Assessment-I   Download File C.B.S.E.-2012-Sample-Papers-for-IX-Science  Set-2 -Summative-Assessment-I Download File C.B.S.E.-2012-Sample-Papers-for-IX-Science  Set-3 -Summative-Assessment-I Download File C.B.S.E.-2012-Sample-Papers-for-IX-Mathematics  Set-1 -Summative-Assessment-I Download File C.B.S.E.-2012-Sample-Papers-for-IX-Mathematics  Set-2 -Summative-Assessment-I Download File C.B.S.E.-2012-Sample-Papers-for-IX-Mathematics  Set-3 -Summativ

1. Relative density of silver is 10.8. The density of water is 10 3   Kgm -3 . What is the density of silver in SI unit?  Ans: Relative density of silver = 10.8 Relative density of water = 10 3   Kgm -3 Density of silver = Relative density of silver x Relative density of water = 10.8 x 10 3   Kgm -3 2. Is potential energy a vector or a scalar quantity? Ans: Potential energy is a scalar quantity. 3. (i) Give any two examples of longitudinal waves.(ii) What is the most essential property of a wave motion and why? Ans: (a) i. Waves produced in air. ii. When a freely suspended spring is pulled downwards and released, longitudinal waves are produced. (b) The most essential property of a wave motion is its frequency. Frequency of a wave is its inherent characteristic and does not change by the change in temperature, pressure or change in medium. 4. (a) Calculate the work done in lifting 200 kg of water through a vertical height 6 meter. (Assuming g = 10m