JSUNILTUTORIAL ,PUNJABI COLONY, GALI 01
Class IX Physics + Chemistry Time- 2 hrs MM : 50
General Instructions:-
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 17 and 18 are long answer question carrying 5 marks.
1. Name the technique to separate butter from curd.
2. What does the odometer of an automobile measure?
3. What is the momentum of an object of mass ‘m’ and moving with velocity ‘v’?
4. Why naphthalene balls disappear with time without leaving any solid?
5. Mass of an object is 10 kg. What is its weight on earth?
6. What is the Physical state of water as 25° C?
7. Which of the following will show “Tyndall effects”? (a) Salt solution (b) Milk (c) CuSo4
(d) Starch solution
8. Under what condition(s) is the magnitude of average velocity of an object equal to it average speed?
9. In what direction does the buoyant force on an object immersed in a liquid act?
10.Why some of the leaves detached from a tree if we vigorously shake its branches?
11. State Newton first law of motion.
12. What is the importance of universal law of gravitation?
13. What are the differences between uniform & non-uniform motion?
14. Classify the following into elements, compounds and mixtures:
(i) Sodium (ii) Soil (iii) Tin (iv) Calcium carbonate
15. What do you mean by Buoyancy?
16. State Newton’s first law of motion.
17. A car falls of a ledge and drops to the ground in 0.5 sec (Take g=10 m/sec)
(a) What is the speed on striking the ground?
(b) What is the average speed during 0.5 sec?
(c) How high is the ledge from the ground?
18. A Truck starts from rest and rolls down a hill with constant acceleration. It travels a distance of 400 m in 20 sec. Find its acceleration. Find the force acting on it if its mass is 7 metric tones.
19. List any three points of difference between homogeneous and heterogeneous mixture.
20. Which separation technique will you apply for the separation of the following.
(a) Sodium Chloride from its solution in water.
(b) Iron pins from sand
(c) Oil from water
21. a) State universal law of gravitation.
b) Why is the weight of an object on moon is 1/6th of the earth?
22. Differentiate between mass and weight.(Any three)
23. How are solution and suspension different from one another on basis of there?
i Diffusion ii Appearance iii Visibility iv Particle size v. Tyndal effect
OR, (a) Why the smell of hot sizzling food reaches you several meters away but to get the smell from the cold food you have to go close?
(b) Why we are able to sip hot tea or milk faster from saucer rather than a cup?
(c) Suggest a method to liquefy atmospheric gasses.
24. a) Which would require a greater force, accelerating a 2 kg mass at 5 m/sec² or a 4 kg mass at 2 m/sec²? b) From the velocity time graph, graphically derive the second equation of motion S= ut + ½ at². OR,
a) What is Archimedes principle?
b) What is relative density?
c) Relative density of silver is 10.8. The relative density of water is 10³ kg/ m³? What is. the density of silver in S I units.
Class IX Physics + Chemistry Time- 2 hrs MM : 50
General Instructions:-
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 17 and 18 are long answer question carrying 5 marks.
1. Name the technique to separate butter from curd.
2. What does the odometer of an automobile measure?
3. What is the momentum of an object of mass ‘m’ and moving with velocity ‘v’?
4. Why naphthalene balls disappear with time without leaving any solid?
5. Mass of an object is 10 kg. What is its weight on earth?
6. What is the Physical state of water as 25° C?
7. Which of the following will show “Tyndall effects”? (a) Salt solution (b) Milk (c) CuSo4
(d) Starch solution
8. Under what condition(s) is the magnitude of average velocity of an object equal to it average speed?
9. In what direction does the buoyant force on an object immersed in a liquid act?
10.Why some of the leaves detached from a tree if we vigorously shake its branches?
11. State Newton first law of motion.
12. What is the importance of universal law of gravitation?
13. What are the differences between uniform & non-uniform motion?
14. Classify the following into elements, compounds and mixtures:
(i) Sodium (ii) Soil (iii) Tin (iv) Calcium carbonate
15. What do you mean by Buoyancy?
16. State Newton’s first law of motion.
17. A car falls of a ledge and drops to the ground in 0.5 sec (Take g=10 m/sec)
(a) What is the speed on striking the ground?
(b) What is the average speed during 0.5 sec?
(c) How high is the ledge from the ground?
18. A Truck starts from rest and rolls down a hill with constant acceleration. It travels a distance of 400 m in 20 sec. Find its acceleration. Find the force acting on it if its mass is 7 metric tones.
19. List any three points of difference between homogeneous and heterogeneous mixture.
20. Which separation technique will you apply for the separation of the following.
(a) Sodium Chloride from its solution in water.
(b) Iron pins from sand
(c) Oil from water
21. a) State universal law of gravitation.
b) Why is the weight of an object on moon is 1/6th of the earth?
22. Differentiate between mass and weight.(Any three)
23. How are solution and suspension different from one another on basis of there?
i Diffusion ii Appearance iii Visibility iv Particle size v. Tyndal effect
OR, (a) Why the smell of hot sizzling food reaches you several meters away but to get the smell from the cold food you have to go close?
(b) Why we are able to sip hot tea or milk faster from saucer rather than a cup?
(c) Suggest a method to liquefy atmospheric gasses.
24. a) Which would require a greater force, accelerating a 2 kg mass at 5 m/sec² or a 4 kg mass at 2 m/sec²? b) From the velocity time graph, graphically derive the second equation of motion S= ut + ½ at². OR,
a) What is Archimedes principle?
b) What is relative density?
c) Relative density of silver is 10.8. The relative density of water is 10³ kg/ m³? What is. the density of silver in S I units.
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