Showing posts with label 9th Sample paper Term-1. Show all posts
Showing posts with label 9th Sample paper Term-1. Show all posts

14 September 2012

SA–I (2014-15) SCIENCE Class –IX CBSE SAMPLE PAPER Based on Practical

1. A student was asked to mix the white of an egg with water and stir well. The student observed that
 (a) a transparent solution is formed.
 (b) a translucent mixture is formed.
 (c) egg white settles down at the bottom.
(d) egg white floats on the surface
2. If common salt is added to an unsaturated solution of common salt in water it will
(a) Become a colloid
(b) Become a suspension
(c) start showing Tyndall effect
(d) remain a true solution
3. Which is the correct colour sequence of iron filings, sulphur and iron sulphide ?
 (a) Greyish black, yellow, black
(b) Black, yellow, brown
(c) Brown, yellow, black
(d) Black , yellow, greyish black
4. When barium chloride solution is mixed with sodium sulphate solution
(a) a white precipitate is formed instantaneously
 (b) a white precipitate is formed only after some time
(c) a yellow precipitate is formed instantaneously
(d) a yellow precipitate is formed
5. A student heats some water in a round bottomed flask for determining its boiling point. He keeps on recording its thermometer readings. On the basis of his observation he would
conclude that the temperature of water :
(a) keeps on increasing regularly.
(b) keeps on increasing irregularly.
(c) first increases slowly, then rapidly and eventually becomes constant.
 (d) first increases rapidly, then slowly and finally becomes constant.
6. A student made a list of following four precautions for the experiment on determination of melting point of ice. The incorrect precaution is :
 (a) The bulb of the thermometer should be kept surrounded with crushed ice.
(b) Ice should be stirred regularly.
(c) A small quantity of common salt should be added to the crushed ice to avoid quick melting.
(d) The temperature should be recorded keeping the eye in the level of mercury.
7. The sequence commonly followed for separating a mixture of sand, common salt and ammonium chloride is :
(A) use of magnet, dissolving in water, filtration, sublimation
(B) dissolving in water, filtration, evaporation, sublimation
(C) sublimation, use of magnet, dissolving in water, filtration
(D) sublimation, dissolving in water, filtration, evaporation
8. The reaction of iron and sulphur to form iron sulphide takes place at :
 (a) at high temperature
 (b) in the presence of a catalyst
(c) at moderate temperature
(d) in the presence of an acid
9. The colour of the pure ammonium chloride powder is :
 (a) White (b) Blue (c) Green (d) Red
10. Raisins swell up after being placed them in a beaker containing water for sometime because. (a) Water inside the raisins exits when placed in a beaker of water.
(b) The concentration of water in the cell sap is the same as that of water in the beaker.
(c) The concentration of water in the cell sap is higher than the water in the beaker.
(d) The concentration of water in the cell sap is lesser than that of water in the beaker
11. A student accidentally spilled a few drops of a solution over the shirt, the area became blue black because the solution was :
(a) potassium dichromate which oxidized the piece of shirt.
(b) HCl which reacted with metanil yellow pigment of the shirt.
(c) iodine which reacted with the starched part of the shirt
(d) an acid which burnt the patch of the shirt.
12. Metanil yellow is an adulterant of :
(a) cereals (b) milk products (c) turmeric powder (d) pulses
13. Animal cells are commonly stained with :
(a) methylene blue (b) acetocarmine (c) safranin (d) iodine solution
14. A student soaked 10 g raisins in 75 mL of distilled water in two beakers A and B. He maintained beaker A at 20C and beaker B at 40
C. After an hour, the percentage of water absorbed will be :
(a) same in beaker A and B
(b) more in A than in B
(c) more in B than in A
 (d) twice as much in B as in A
15. The mixture of sand and water when filtered gives.
(a) pale brown solution (b) brown solution (c) transparent solution (d) grey solution
16. When we start heating mixture of sulphur powder and iron filings, we observe that :
 (a) sulphur starts melting
(b) iron filings start melting
 (c) mixture becomes red hot
(d) mixture evaporates
17. When barium chloride solution is added to sodium sulphate solution :
 (a) no reaction takes place
(b) colourless solution is formed
(c) white precipitate is formed
(d) blue precipitate is formed
18. Which of the following would you choose to determine the melting point of ice in your laboratory ?
 (a) dry crushed ice
 (b) ice cubes
(c) ice added to water
(d) slab of ice
19. While determining the boiling point of water pumice stone pieces are added to :
(a) spread the heat uniformly.
(b) prevent loss of heat energy.
(c) to stop bumping of water.
(d) to avoid cracking of the glass container
20. A student by mistake mixed iron filings and sulphur powder. He wanted to separate them from each other. The method he should use is to dissolve the mixture in :
(a) boiling water (b) cold water (c) carbon disulphide (d) kerosene 
SUMMATIVE ASSESSMENT– I (2012) SCIENCE Class –IX CBSE SAMPLE PAPER

27 August 2012

IX Science Question paper for SA 1

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) ribbon(d) powder
10. Magnesium is present in the laboratory in the form of (a) Fillings (b) granules(c) ribbon (d) powder
11. Classify the following as chemical or Physical Change
A. Cutting of tree B. Rusting of Iron C. Melting of Ice D. Burning of coal
12. A racing car has uniform acceleration of 4m/s2. What distance will it cover in 10 seconds after if start.
13. If action and reaction are equal and opposite than why can’t they cancel each other?
14. Explain why some of the leaves may get detached from tree if we vigorously shake its branch.
15. Name the technique to separate (i) butter from curd (ii) camphor from salt.
16. What produces more severe burn boiling water or steam and why?
17. Write the steps you would use for making tea use the words solute, solvent, solution, soluble, insoluble and filtrate
18. What is displacement? An athlete completes 1 round of circular track of radius 105 m in 40 sec. What will be the distance covered and the displacement after 1 min 20 sec.
19. State Newton’s universal law of gravitation. Deduce it mathematically.
20. A stone is released from the top of a tower of a height 19.6 m. Calculate its final velocity just before touching the ground.
21. Define suspension. Write two properties of each giving examples
22. State Newton’s second law of motion. How it can be used to define the unit of force.
23. How can we separate a mixture of two immiscible liquids? Draw a labeled diagram of the apparatus used.
OR,
a) List the differences in the states of matter ( Any three)
b) List the factors which affect the rate of evaporation.
24.(a) Define terms : Fusion, latent heat of fusion, boiling point, latent heat of vaporization
(b) Give two examples each 1. Aerosol .2. Emulsion. 3. Gel
OR,
A stone is dropped from the edge of a roof .How long does it take to fall 4.9m?How fast does it move at the end of that fall ? How does it move at the end of 7.9m? What is its acceleration after 1 second and after 2 second?
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18 August 2012

CBSE Class X Mathematics Sample Papers for 2013 Examination

CBSE Class X Mathematics Sample Papers for 2012-13 SA-I Examination
New Sample Papers and Test Papers
                          CBSE Class X Test Papers
                         CBSE Class IX Test Papers
                              New Sample Papers

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