URANIUM TALENT SEARCH EXAMINATION(UTSE) - 2011 (CBSE/ICSE) Time: 60 minutes(11 am - 12 noon) Class- IX F.M - 180(+3/-1 system) Declaration of Result in the internet(www.theuranium.org) : 15.03.2011 (There are 60 MCQs and each has one correct answer. You are required to darken the appropriate circle in the OMR answer sheet with the help of a HB pencil. Eraser can be used to change any answer. Note that improper darkening will make your answer sheet invalid by the computer. 3 marks will be given
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convection process rather than mechanical transmitting source‚ which captures the heat energy of sun and delivers it during winter and pumps out the heat in summer‚ using heat distribution methods. Some of the heat distribution methods are Convection‚ Conduction‚ and Radiation. However components of passive solar heating are‚ the aperture area of the house‚ absorber area of the house‚ thermal mass of the house‚ heat distribution‚ and solar control. When these components work together it contributes
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An intensive property is a bulk property‚ meaning that it is a physical property of a system that does not depend on the system size or the amount of material in the system. Examples of intensive properties are the temperature and the hardness of an object. No matter how small a diamond is cut‚ it maintains its intrinsic hardness. By contrast‚ an extensive property is one that is additive for independent‚ noninteracting subsystems.[1] The property is proportional to the amount of material in the
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The importance of water in Biological Systems Much of the Earths surface is comprised of water‚ as well as much of biological systems; for instance‚ the human body consists of approximately 70% of water‚ and in other biological organisms this figure could even be 95%. This largely relies on the bonding of water‚ whereby two hydrogen atoms bond to one oxygen atom; hydrogen bonding is the strongest intermolecular force due to its high polarity. Hence‚ what is the biological importance of water?
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Hoo Sze Yen Form 4 Experiments Physics SPM 2008 CHAPTER 1: INTRODUCTION TO PHYSICS 1.1 PENDULUM Hypothesis: The longer the length of a simple pendulum‚ the longer the period of oscillation. Aim of the experiment: To investigate how the period of a simple pendulum varies with its length. Variables: Manipulated: The length of the pendulum‚ l Responding: The period of the pendulum‚ T Constant: The mass of the pendulum bob‚ gravitational acceleration Apparatus/Materials: Pendulum bob‚ length
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water plays a part in this. One method of reducing internal body heat is sweating; sweat is mostly made up of water. The structure of the water molecule means that it has very high melting and boiling points for a molecule of its nature because of the strong attraction between them. This means that a large amount of energy is needed before the molecules begin to move about and therefore change state. It is because of this high latent heat of vaporisation that water is an effective coolant; energy from
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Numerical Analysis of Auto-ignition of Ethanol Vaibhav Kumar Sahu1‚ Shrikrishna Deshpande1‚ Vasudevan Raghavan1‚* 1Department of Mechanical Engineering Indian Institute of Technology Madras‚ Chennai 600036‚ INDIA. Received 28 June 2011; accepted 5 August 2011‚ available online 24 August 2011 1. Introduction Ethanol is the most effective bio-fuel. Its easier production from agricultural feed-stocks‚ sugar cane and Fischer-Tropsch method makes it dominant among other bio-derived
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Science Chemistry Controlled Assessment- Part 3 Analysis and Evaluation 1) Process the data you have collected and plot a graph(s) of the results of your expected results Please refer to the graph attached to the document for the answer to this question. 2) Describe any patterns or trends in your results. Comment on any unexpected results. Due to the positive correlation that my graph shows‚ I can infer that the more mass of CaCl2 added then the higher the energy release. Through further calculations
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Experiment to determine absolute zero using Charles’s law In this experiment you will be determining the specific heat capacity of oil using an electrical method. You will need to ensure that your write up contains the following: • Clear method (bullet points are ok) and labelled diagram include what is to be repeated and averaged. • State independent/dependent and control variable(s) • State what is to be varied and how (include range and intervals)? • What is to be measured and what with
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Page 12 1 a) Between t = 30 and t = 45 mins b) 7.5 mins c) i) distance travelled = area under graph between t = 0 and t = 12½ mins ii) average speed = total distance travelled total time for journey = total area under graph 60 mins 2 a) ∆v = 32 m/s a =10 m/s² t = ∆v = 32 = 3.2 s a 10 b) 3 a) OP – constant acceleration PQ – constant acceleration (greater than OP) QR – constant speed RS – constant deceleration b) O and S c) 6 m/s d) 70 s e) Total distance travelled = area under
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