Page 1 : Beyus, , 5. Convert the following temperature to Kelvin scale., (a) 25°C (b) 373°C, , 6. State the universal law of gravitation., , 7. How Xylem is different from Phloem? Give three points each., , 8. What produces more severe burn, boiling water or steam? Give explanation., , 9. A solution contains 40 g of common salt in 320 g of water. Calculate the concentration mass by mass., by mass percentage of the solution., , 10. Name the process used for separating following mixtures,, , (a) Drugs from blood, , (b) Different factions from petroleum, , (c) Purification of salt that we get from sea water., , 11. Differentiate between prokaryotic and eukaryotic cells, giving at least three points each., , 12. What do you mean by simple permanent tissue? Name the three different types of simple permanent, tissue., , 13. Differentiate between the following , (a) Tendon and Ligament., , (b) Primary meristem and Secondary meristem., , 14, Draw a neat labeled diagram of plant cell or a Neuron., , 15. Draw a graph for a car moving with uniform acceleration from the data given below. What is the, quantity which is measured by the area occupied below the velocity- time graph., , Time(s) Velocity of the car(m/s), 0 0, 5 8, 10 16, 15 24, 20 32., 25 40, 30 48, , 16, What is uniform circular motion? An artificial satellite is moving in a circular orbit of radius 42250, km, Calculate its speed if it takes 24 hours to revolve around the earth,, 17.(a) State Newton’s First law of motion., (b) Which has more inertia a bicycle or a train. Why?, , 18. From a rifle of mass 4 kg , a bullet of mass 50 g is fired with an initial velocity of 35 ms". Calculate, the initial recoil velocity of the rifle., 19, (a) Define momentum? Does it have direction and magnitude?, , (b) Which would require a greater force, accelerating a 2kg mass at Sms or a 4kg mass at 2m:, 20. A train starting from rest attains a velocity of 72kmh" in 5 minutes. Assuming that the acceleration is,, uniform, find (i) the acceleration and (ii) the distance travelled by the train for attaining this velocity., 21. How manure is different from fertilizers? Which one of the two improves soil texture? Name the bee, variety used for commercial honey production., , , , 22. (a) Colloids and suspension are used in our daily life, giving suitable examples present their properties, ina tabular form., , (b) Which one of the following is not a mixture? Air, water and soil., 23. (a) State Archimedes’ Principle and give equation for relative density., , (b) Relative density of silver is 10.8. The density of water is 10’kgm’, What is the density of silver in, Slunit,, 24, (a) What produces more severe burns boiling water or steam? Give explanation for your answer,, , (b) Name the four factors on which evaporation depends.