CBSE Physics Solved Board Question Papers 2008, 2009, 2010 & 2011 – All versions

Download CBSE Physics Solved Board Question Papers 2008, 2009, 2010 & 2011 – All versions (Delhi, Outside Delhi & Foreign)

Central Board of Secondary Education

The question Papers are in PDF format, all question papers with solution in a single file. So, it may take some time for the download to finish.

CBSE Physics Class 12 Board Question Papers 2008 to 2011 all sets (SETS I, II & III) and versions (DELHI, FOREIGN, OUTSIDE DELHI)

Click Here to Download. 

Sure Shot questions in Physics for CBSE Class 9 Summative Assessment (SA1)

All CBSE Schools are conducting the SA1 (First Summative Assessment) in the month of September  (Kendriya Vidyalayas have already started).  At this point, we found it would be useful to the students to have a set of sure shot questions. Practising these will essentially help you score better marks in the forthcoming exams.

 Portions for SA1

MOTION, FORCE AND WORK (Motion, Force and Newton’s Laws of motion, Gravitation)

Long Answer Type Questions

  1. Derive equations of uniformly accelerated motion using graphical representation of motion.
  2. Derive F=ma
  3. State the law of conservation of linear momentum. Illustrate with an example
  4. State and explain Archimedes’ principle.
  5. Describe an experiment to verify Archimedes’ principle.
  6. Distinguish density and relative density.
  7. What are the effects produced by force?
  8. What is friction? How is it caused? How can it be reduced?
  9. Define impulse of a force.
  10. Why does a cricket fielder pulls his hands backwards while taking a catch?
  11. Define inertia and explain its types with suitable examples.
  12. Describe two instances each where pressure is increased by decreasing the area and pressure is decreased by increasing hte area.
  13. State Newton’s universal law of gravitation
  14. Define G.
  15. Distinguish g and G
  16. Why motion and rest are said to be relative terms?
  17. Define acceleration due to gravity at a place and discuss its variation with height, depth and latitude.
  18. Write the differences between mass and weight.
  19. Can an object be accelerated if it is moving with constant speed? Justify your answer with an example
  20. Why is a person hurt more when he falls on a concrete floor than when he falls on a heap of sand from the same height?
  21. The weight of an object on the surface of moon is 1.67N and its mass on its surface is 1 kg. Calculate its weight and mass on the surface of earth, (g on earth = 10 m/s2).
  22. When a horse suddenly starts running, a careless rider falls backwards. Explain why?
  23. State the action and reaction in the swimming action of a swimmer.
  24. A stone is thrown vertically upwards with a velocity of 40 m/s and is caught back. Taking g=10 m/s2, calculate the maximum height reached by the stone.What is the net displacement and the total distance covered by the stone?
  25. Read more at: http://www.icbse.com/papers/cbse-sample-paper-2011-science-class-ix

    Read more at: http://www.icbse.com/papers/cbse-sample-paper-2011-science-class-ix

 

Summative Assessment 1 (SA1) Sample Papers for class 9 Physics

The Summative Assessment 1 is about to begin. As per request from student from various parts of India and abroad, we are publishing some solved sample papers in Physics, which we think, would help you in scoring better marks in the forthcoming SA1 exams.

india calcutta bookstore

(Based on Motion)

 

Class 9 Physics Sample Paper 1  Solved

Class 9 Physics Sample Paper 2  Solved

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Must Practice Questions for CBSE Physics CLASS 12: Solved

We will publish here the portions one cannot afford to miss while preparing for the CBSE class 12  Physics Examination

The Chapters will be posted below. On Clicking the name of the chapter a new page will open. On that page there will be a set of collected questions. On clicking the questions, the complete solution to the questions will open.

Please note that this system is under preparation. We hope to complete this within a month. The link will be activated only after completing the project.

  1. ELECTROSTATICS
  2. CURRENT ELECTRICITY
  3. MAGNETIC EFFECTS OF CURRENT
  4. ELECTROMAGNETIC INDUCTION
  5. ALTERNATING CURRENT
  6. ELECTROMAGNETIC WAVES
  7. OPTICS
  8. DUAL NATURE OF MATTER AND RADIATION
  9. ATOMS AND NUCLEI
  10. ELECTRONIC DEVICES
  11. COMMUNICATION SYSTEMS

 

Where is electricity stored after it is generated but before it is supplied? (Chat Transcript from FaceBook)

Where is electricity stored after it is generated but before it is supplied?
    • Mahesh Sable Electrical power cannot be stored and,therefore,power plants must produce power as and when demanded.power stations r connected in parallel hence load is equally distributed,electric Power can be adjusted with help of step up or step down transformers.

       

    • Mathew Abraham Transformer does not increase power

       

    • Chitraja Rajan The demand for electricity varies randomly within a day itself…so there should be something which should be adjusted according to the demand.

       

    • Vishnu Mohan G huge capacitors? i think i read somewhere like this.

       

    • Rajat Sharma

      Hi All, the question is very smart, i think electricity stored before generation is stored in Water(DAM), Uranium Rods(Nuclear), HydroCarbons(Coal, GAS). Electricity can only store when it is in Direct Current format like in Batteries, Capacitor(its a very small time to store/release) Well there are many source where we can store electricity. When electricity is in demand then Power generation takes place within huge Alternators, this powers generation takes places in terms of Phase Shift between all the power Houses across the country, if this phase shift is disturb then power grid fails. after this the transformers come into picture so as to reduce Resistance loses.

       

    •  
    • Kannan Kannan Ps in my little knowledge electricity unable to store continuing process of generater get current
      >________________________________

       

    • Chitraja Rajan at the generation side electricity is high ac current ..if it is converted into dc then there should be large containers to store them and also need suitable convertors to convert it in either form every time

       

    • Mathew Abraham In modern generators, there are equipment to control the rate of flow of water and in turn rate of rotation as well as the power generated. SO, it is quite right to say that electricity is generated as and when required. When you switch on a device power generation also increases until it reaches maximum capacity. Thereafter we will get less power. Remember the low voltage we suffer during the evening when the power consumption is maximum a few seconds ago · Like

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Carbon Nanotubes to Store Solar Energy

MIT Researchers have developed a new solar thermal fuel that could store up to 10,000 times more energy than previous systems. The fuel consits os CNT modified with azobenzene. The finding is still in development stage.
Read more details at http://physicsworld.com/cws/article/news/46620

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