IX S TEST MOTION & MATTER AROUND US

                                                            Physics

1.        Define:

(i)   Displacement

(ii)  Velocity

(iii) Acceleration

(iv) Scalar & Vector Quantities

(v) Uniform & Non-uniform speed

2.        S I Units of (i) Speed (ii) Velocity (iii) Retardation (iv) time

3.        Differentiate distance and displacement ( give at least 3 differences)

4.        Derive equation of II law of motion

5.        A farmer moves along the boundary of a square field of side 10 m in 40 s. What will be the magnitude of displacement of the farmer at the end of 2 minutes 20 seconds?

6.        A train starting from rest attains a velocity of 72 km /h 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.

7.        An athlete completes one round of a circular track of diameter 200 m in 40 s. What will be the distance covered and the displacement at the end of 2 minutes 10 s?

                                                                                Chemistry

8.        Define : (i) Latent heat of vaporization  (ii) latent heat of fusion.

9.        When we pour some acetone or petrol on the palm, we get a cooling sensation . Give reason?

10.     Why does steam produce more severe burns on the skin as compared to boiling water ?

11.     Give reasons for the following observation:

       The smell of hot sizzling food reaches we  several  meters  away, but to get the smell from cold food we have to go closer.

12.     Give reasons

                (a) A gas fills completely the vessel in which it is kept in.

                (b) A gas exerts pressure on the walls of the container.

                (c) A wooden table should be called a solid.

                (d) We can easily move our hand in air but can‘t through a solid block of wood

IX S FA I TEST FACTORISATION ( POLYNOMIAL )

IX TEST FACTORISATION ( POLYNOMIAL )

M.M. 19 + 16                                                                                                                                                                                                                                                                        TIME: 60 MIN

1         [3]Show that (x-3  ) is a factor of 7x² – 19x – 6 

2         [4] Show that x + 1 and 2x – 3 are factors of 2x³ – 9x² + x + 12

3         [2 marks each] Factorize ( i to vi)

i.                     x² + 11x - 30

ii.                    x² - 6x - 55

iii.                  40 + 3x – x²

iv.                  9x² – 22x + 8

v.                   m² + 17mn – 84n²

vi.                  

1.        [3]Define                                                                                                                                             

                 (a)            Velocity

                 (b)            Acceleration

                 (c)            Uniform and Non-Uniform Motion

2.        [2]S I Units of (i) Speed (ii) Velocity (iii) Retardation (iv) time

3.        [2]A car traveling at 20 km/h speeds up to 60 km/h in 6 second. What is its acceleration ?          

4.        [3]Tabulate difference between Distance and Displacement     (At least three.)                                                                                                                             

5.        [1]A body displaces through 30 m eastward and 20 m northward. What is total displacement                                                                              

6.        [2]Define : (i) Latent heat of vaporization  (ii) latent heat of fusion.

7.        [1]When we pour some acetone or petrol on the palm, we get a cooling sensation . Give reason?

8.        [1]Why does steam produce more severe burns on the skin as compared to boiling water ?

9.        [1]  A car is moving with a uniform velocity of 40 km h ^–1. Its acceleration after 1 hour is

(a) 40 km / h²                                 (b) 20 km/ h²

(c) 30 km /h²                                                  (d) zero.

10.     [HOME WORK ]A body covers half the distance with a velocity of 15 m/s and the remaining half with a velocity of 30 m/s. Find the average velocity.                         

                                     

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IX SAI NO SYSTM & POLYNOMIAL

IX SAI IMPROVEMENT IN FOOD RESOURCES TEST 1

TEST IX- IMPROVEMENT IN FOOD RESOURCES

M.M. 35                                                                                                                                 TIME : 60 MIN.

1.        [1]For what purpose oysters are cultured?

2.        [1]What is Green manure?

3.        [1]Write major group of activities for improving the yield of crop.

4.        [2]What is the need for irrigation? Write various kinds of irrigation system employed.

5.        [2]Classify under mentioned  as Kharif [K] or Rabi Crop [R]

Mustard , Green Gram , Wheat , Gram , Paddy (Rice) , Pigeon Pea , Cotton , Sugarcane.

6.        [4]Define  [a] Mixed Farming [b] Mixed Cropping [c] Inter-cropping [d] Crop rotation

7.        [4]Give terms for the following:                                                                       

               I.      Animal reared for milk

             II.      Animal reared for labour

           III.      Young larvae of fish

           IV.      Chicken reared for meat

             V.      Chicken reared for eggs

           VI.      Species native of one region

         VII.      Species of foreign native

       VIII.      Farming that don’t use chemicals

Any six question [ from Q. 9 to Q.16 ]

8.        [2]What is  Compost & Vermi-composting?

9.        [2]What do we get from cereals, pulses, fruits and vegetables?

10.     [2]How do biotic and abiotic factors affect crop production?

11.     [2]Which method is commonly used for improving cattle breeds and why?

12.     [2]What are the desirable characters of bee varieties suitable for honey production?

13.     [2]What is pasturage and how is it related to honey production?

14.     [2]Why are manures and fertilizers used in fields?

15.     [3]Innumerate (Write) factors for which variety improvement is done.

16.     [3]What factors may be responsible for losses of grains during storage?