Formative Assignment Including PSAfor class IX PHYSICS 1. Motion is relative or absolute? Give reason. 2. Name the physical quantity that essentially changes as a body moves. 3. Is displacement or distance independent of path? How? 4. Give example of a motion in which distance is covered but there is no displacement. 5. Give one example of motion where‚ distance and displacement are same. 6. When moving car returns to the same point what will be the ratio of
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distributed in the area of the water. Osmosis is a special type of diffusion where only the water molecules move. This happens through a selectively permeable membrane. It allows water and oxygen to move freely across the membrane. Osmosis only has an effect when the cell is in a hypotonic or hypertonic solution. A hypotonic solution is when the salt concentration
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Accident rates- country and Bangalore/karntaka- comparison Motivational video -1 min Death by accidents Role model- construct/find data No. of cases booked in a year Policy – divide into3 month periods – top 3 scorers in max periods will be promoted during promotion. And the tope three scorers each month get a bonus and flag – pride‚ growth Topper’s club – national level meetings Annual conference on showcasing the best achievement Who are we? The Bangalore Traffic Police What do we do
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experiment was to determine the effect of temperature on the rate of movement of Porcellio scaber. Our prediction was that P. scaber would have faster rates of movement in hotter temperatures. We expected this response as P. scaber is an ectotherm. Hence‚ its body temperature is directly determined by the temperature of its environment (Mellanby 1939). Løkke and van Gestel (1998) stated that the rate of the metabolism is controlled by the environmental temperature for ectotherms. As seen by Wieser
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The Environmental Lapse Rate Exercise A (Total = 12 marks) The heights of the temperature °c measurements are given in meters (m) Convert each of these to the appropriate height in Hectopascals (hPa): Height (m) Temperature°c Hectopacals (hPa) 0 22 1000 1500 18 850 3000 13 700 4000 7 600 5000 -15 500 6000 -22 400 7000 -36 300 8000 -41 200 8500 -49 150 9000 -58 100 a) Plot a simple graph to display these data (3 marks): see attached b) what does the graph tell you about
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experimental rate law of is 2I-(aq) + H2O2(aq) I2(aq) + 2H2O2(l). The rate law determined experimentally is rate= k[I-]1.017[H2O2]0.927. Additionally by performing essentially the same experiments but with temperature changes one can determine how k is affected by temperature changes and the new activation energy. Also‚ from graphs the activation energy was determined to be 33.3 kJ/mol. INTRODUCTION: The rate of a chemical reaction often depends on reactant concentrations‚ temperature‚ and the
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Biology coursework How does the temperature affect the rate of reaction? Introduction For our experiments‚ I was investigating what affects the rate of reaction. We used Hydrogen peroxide to test the rate of reaction‚ with the temperature of this being our variable that we changed. Hydrogen peroxide is a clear‚ colourless liquid which has various amounts of uses within the laboratory‚ industrial purposes and even in our households. It is mainly used for cleaning products and hair dye but is
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9.5 Tests for halogens and halide Ions Test for halogen Test method Test observations Test chemistry and comments Chlorine gas Cl2 A pungent green gas. (i) Apply damp blue litmus. (Can use red litmus and just see bleaching effect.) (ii) A drop silver nitrate on the end of a glass rod into the gas. (i) litmus turns red and then is bleached white. (ii) White precipitate. (i) Non-metal‚ is acid in aqueous solution and a powerful oxidising agent (ii) It forms a small amount of chloride ion in water
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Dissolution Rates of Paracetamol in Different Temperatures Rowan Boreham and Cameron Matheson Introduction Panadol Rapid Soluble‚ is paracetamol based a medical drug that treats pain and discomfort associated with headache/tension headache‚ migraine‚ toothache‚ muscular aches‚ cold and flu symptoms‚ sore throat and menstrual pain (Medsafe‚ 2012). While there are other recognised sources of pain relief‚ Panadol has been widely recognized as a being of a high standard treatment for pain. There for
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Nais mong maabot lipunang malayaIbig mong makamit kaginhawaan ng madlaPaano mo mararating ang pangarap na itoKung bulag ka sa nangyayari sa paligid moTainga mo nama’y bingi sa karaingan ng taoDi mo pinapansin ang kanilang pagsusumamo.Pananaw mo sa buhay‚ bakit ba ganyan?Nais mong tumulong ikaw nama’y nag-aalinlanganIkaw ba’y natatakot iyong karapata’y ipaglaban?O iniisip mo lamang ang sarili mong kapakanan?Nasa pagkilos ang ating paglayaHindi sa pangarap at patunga-tungangaKung hindi ngayon kailan
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