Monday 11 December 2017

REVISION TEST_11.12.2017

MATHEMATICS
1.  Find the distance between A(2,-2) and B(5,6).                              (1)

2.  ABC and BDE are two equilateral triangles such that D is the mid point
of BC. The ratio of the areas of triangles ABC and BDE is
     (a)  2 : 1      (b)  1 : 2        (c)  4 : 1      (d)  1 : 4                             (1)
3.  Find the value of x such that PQ = QR where coordinates of  P, Q and R
are (6 , - 1 ) , ( 1 , 3 ) and ( x , 8 ) respectively.          (2)
4.  In ABC, D and E are the points on the sides AB and AC respectively,
such that  DE II BC.  If AD = 4 , AE = 8 , DB = x – 4 and EC = 3x – 19, find x.
                                                                                                            (2)
5.  Find the ratio in which  the line segment joining the points ( 6 , 4 ) and 
( 1 , - 7 )  is divided by x-axis.                                                             (3)
6.  A vertical stick 10 m. long casts a shadow 8 m. long.  At the same time a
      Tower casts a shadow 30 m. long.  Determine the height of the tower.
                                                                                                            (3)
7.  If the points A (x, y), B (a, 0), C (0, b) are collinear, prove
                                                                                                            (4)
8.  In the adjoining figure, if DE AC and DC AP, prove that
                                    (4)






Revision Test – Class – X
Social Science
Very short questions- 1x4=4
1. What are placer deposits?
2. What are veins and lodes?
3. What are the two planks of sustainable energy?
4. What do you mean by the term collateral?
Short questions-3x2=6
1. What do you understand by ‘Bhoodan’ and ‘Gramdan’?
2. Describe the cropping seasons in India?
Long questions-5x2=10
1. What are the four main type of coal found in India? Explain.
2. Why are poor households still dependent on informal sources of credit? Explain.




ENGLISH
1.       ‘ I hope the part calls for some dialogue?’ who says this? Why does he/she ask this question?(3)
2.       The ice was here, the ice was there,
The ice was all around:
It cracked and growled, and roared and howled,
Like noises in a swound!(1x6= 6)
(a)    What literary device is used in the first two lines? What effect does it create?
(b)   Which word rhymes with ‘ around’?give its meaning.
(c)    Identify the words that create sound effect. What literary device do they exemplify?
(d)   What happened soon after this?
(e)   How is the extent of the spread of ice conveyed?
(f)     What atmosphere do these lines create?
3.       Describe the summer cottage,’fern Quarry’ and its surroundings?(5)
4.        News headlines:-
(a) IIM-I plans to open study centre in uae.
Indore : the Indian institution of management, indore(IIM-I)__________
__________ in partnership with a private company.
(b)INDIA RESUMES ‘ POLITICAL DIPLOMACY’ WITH NEPAL.
Kathmandu ____________ with Nepal after a gap of 15 years with a visit to the northern neighbour by a group of six young parliamentarians.
(c) BANGLADESH SEEKS $1.8 BILLION POST CYCLONE AID
Bangladesh ______ from the international community.
Give suitable news headlines for each news story:
(d) _____________
Srinagar: a moderate  quake measuring 5.7 on the Richter scale hit Jammu and Kashmir at 3.19pm on Monday.
(e)
Jaunpur : twelve passengers were injured when the bus they were travelling in overturned in Newadhiya area on Tuesday
SCIENCE
  1. Rahul has been collecting copper coins and silver coins. One day he observed a green coating on copper coins and a black coating on silver coins. State the chemical phenomenon responsible for these coatings and also write chemical names of each coating. (2)
  2.  Based on the group valency of elements, state the formula for the following giving justification for each:
(i)                  Oxides of 1st group elements,
(ii)                 Halides of the elements of group 13, and
(iii)                Compounds formed when an element of group 2 combines with an element of group 16 .(3)
3.  (a) What is the criteria used in the development of Modern Periodic Table?
     (b) State the position of (i) metals, (ii) non-metals and (iii) metalloids in the     periodic table.
     (c) Would you place two isotopes of chlorine; Cl-35 and Cl-37 in different slots of the periodic table or in the same slot of periodic table? Answer w.r.t part (a). (3)
4. Four elements P, Q, R, S has the atomic no, 12, 13, 14, 15 respectively.
Answer the following questions and give reasons:
(i)                  What is the valency of Q?
(ii)                What is the increasing order of the atomic size?
(iii)               What is the increasing order of the metallic character?
(iv)              Which element is most likely to be a non metal?       (4)
  1. Why sodium is stored in kerosene oil? Give chemical equation(s) to show your answer. (2)
  2. Name any one ore of mercury. How can it be extracted from the ore? Give equations in support of your answer. (3)
  3. Cu metal was immersed in a freshly prepared solution of FeSO4. Explain how the reaction will take place and give reason. (2)
  4. Name one metal and a non metal which is liquid at room temperature.


REAL NUMBERS - ASSIGNMENT 02