EMIRATES FUTURE INTERNATIONAL ACADEMY HOLIDAY

EMIRATES FUTURE INTERNATIONAL ACADEMY
HOLIDAY HOMEWORK- WORKSHEET
CLASS: XI
SUBJECT: BIOLOGY
UNIT : 2
Morphology of flowering plants
I. 1) Explain. i) the region of elongation ii) the region of maturation.
2) Give the similarity and dissimilarity between tendrils and thorns. Give examples.
3) How the stem is modified for vegetative propagation in strawberry, pistia and
chrysanthemum.
4) What do you mean by half inferior ovary? Explain with examples.
5) Write a note on papilionacious aestivation.
6) Compare monadelphous, diadelphous and poladelphous nature with exampls.
7) Write the floral formula of a actinomorphic, bisexual,hypogynous flower withsix united
sepals, six free petals six free stamens and four united carpels with inferior ovary and
basal placentation.
Anatomy of flowering plants
II.8) What is pith and what is stele?
9) Explain the mesophyll layer of a dorsiventral leaf.
10) Draw the different stages of the secondary growth in a typical dicot root.
11) Why are xylem and phloem called complex tissues?
Structural organization in animals
III.12) ‘ All animal tissues has specialized junctions’. What are they? What are their functions?
12) Write the functions of areolar tissue and adipose tissue.
13) Bring out the difference between male and female cockroach
14) What are the uses of ommatidium?
15) ‘Insects are uricotellic’. How?
16) What are the following and where do you find them in animal body.
i)
Axons
ii)
Ciliated epithelium
UNIT : 3
Cell : The unit of life
IV.17) Name the surface structures which do not play a role in motility in bacteria.
Explain.
18) What is the role of mesosome? Where it is found?
19) Bring out the importance of fluid mosaic model of cell membrane.
20) What are primary constriction? How can we classify the chromosomes based on their
positions?
Biomolecules
V.21) Differentiate micromolecules and macromolecules with examples.
22) Name some secondary metabolites and mention their functions.
23) Cellulose cannot hold I2.- Why?
24) Illustrate i) peptide bond ii) glyccosidic bond iii) ester bond.
25) ‘ The living state is a non-equilibrium steady-state ‘.Explain.
26) Explain ccompetitive inhibitor with an example. Mention one use.
Cell Cycle and Cell Division
27) What are the stages of equational division? Why it is called so?
28) Write the significance of mitosis.
29) Explain: i) synaptonemal complex. Ii) chiasmata iii) bivalent.
30) ‘ Variations are very important for the process of evolution’- Explain.
UNIT:4
Transport in Plants
31) Explain the positive and negative pressure potential.
32) Illustrate the two distinct pathway of water movement in the root.
33) What is guttation? Explain.
34) How tensile strength and capillarity help in ascent of sap in xylem?
35) Explain phloem transport.
Mineral Nutrition
36) Differentiate micro and macronutrients.
37) What is flux?
38) What do you mean by biological nitrogen fixation? Name the organisms help this process.
39) Write an equation to show the fate of ammonia.
40) What is critical concentration?
________________________
1) Complete the Investigatory Project.
2) Prepare an herbarium showing different types of inflorescence.
_________________________
EMIRATES FUTURE INTERNATIONAL ACADEMY
CHEMISTRY WORKSHEET
CLASS - XI
Unit 1 Some basic Concepts of Chemistry
1. Calculate the no. of atoms present in 11.5 litres of H2 at N.T.P.
2. Calculate the no. of moles of 5.68 gm. of iron.
3. An atom of an element is 10.1 times heavier than the mass of a carbon atom. What is
its mass in a.m.u.?
4. Explain with example, limiting reagent.
5. The molecular mass of an organic compound is 90 and its %age composition is
C-26.6%; O=71.1% and H=2.2%. Determine the molecular formula of the
compound.
6. Commercially
available sulphuric acid contains 91% acid by mass and has a density
of 1.83g mL-1 (i) Calculate the morality of the solution (ii) volume of concentrated
acid required to prepare 3.5L of 0.50 M H2SO4
Unit 2 Structure of Atom
1. Explain Hund's rule of maximum multiplicity by taking an example of phosphorous.
2. Why Bohr’s orbits are called Stationary States?
3. Explain why the uncertainty principle is significant only for the microscopic particles
and not for the macroscopic particles?
4. Why half-filled and fully filled orbital are extra stable?
5. Give differences between orbit and orbital.
Why large no. of lines appear in the spectrum of hydrogen although it contains only
one electron?
6. Using the s, p, d, f, notations describe the following quantum no.
n=4;
(a) n=1, l=0 (c) n=4; l=3 (d) l=2
n=6;
(b) n=3, l=2 (d) n=5; l=4 (e) l=4
Unit 3 Classification of Elements
1. What are successive ionization enthalpies?
2. Which of the following will have the largest and smallest size and why?
Cl, Cl-1, Al, Al3+
3. Why d- and f-block elements are less electropositive than group 1 and 2 elements?
4. What is diagonal relationship? Explain it with the help of 'Be' and 'Al'.
5. What is ionisation enthalpy? On what factors it depends?
6. What is electron gain enthalpy? On what factors it depends. How it varies in a group
and in a period?
Unit 4 Chemical Bonding and Molecular Structure
1. Give structure of BrF5
2. Why H2O is liquid and H2S is a gas?
3. Why NH3 is liquid and PH3 is a gas?
4. Boiling point of p-nitrophenol is more than O-nitrophenol why?
5. How paramagnetic character of a compound is is related to the no. of unpaired
electrons?
6. What are the consequences of hydrogen bonding?
Unit-V States of matter
1. What is an ideal gas? Why real gases do deviates from ideal behaviour?
2. A gas occupies 180 mL at a pressure of 0.740 bar at 20oC. How much volume will it
occupy when it is subjected to external pressure of 1.025 bar at the same temp.?
3. A sample of gas occupies 2.50 L at 25oC. If the temp is raised to 65oC, what is the new
volume of the gas if pressure remains constant?
4. Give physical significance of Gay Lussac's Law in daily life.
5. How is gas constant 'R' related to work?
6. Why drop of a liquid is spherical in shape?
7. What is laminar flow?
8. Derive Ideal gas equation.
9. CO2 is heavier than N2 and O2 gases present in the air but it does not form the lower
layer of the atmosphere. Explain?
10. Will water boil at higher temp at Sea level or at the top of mountains and why?
11. What is liquefaction of a gas? Discuss Andrew's isotherms for CO2 and important
conclusions.
12. Why CO2 and NH3 can be liquefied easily where as H2, O2 and N2 cannot be liquefied.
COMPLETE THE CHEMISTRY PRACTICAL RECORD WORK.
PREPARE A WORKING/STILL MODEL FOR EXPO EFIA EXHIBITION.
TOPIC: IMPACT OF TECHNOLOGY IN MODERN LIFE.
LAST DATE FOR SUBMISSION: 04.09.2014
EMIRATES FUTURE INTERNATIONAL ACADEMY
COMPUTER SCIENCE
HOLIDAY WORKSHEET-CLASS XI
1.Find the output of the following program:
#include<iostream.h>
void main( )
{
int U=10,V=20;
for(int I=1;I<=2;I++)
{
cout<<”[1]”<<U++<<”&”<<V - 5 <<endl;
cout<<”[2]”<<++V<<”&”<<U + 2 <<endl;
}
}
2. #include<iostream.h>
void main( )
{
int A=5,B=10;
for(int I=1;I<=2;I++)
{
cout<<”Line1”<<A++<<”&”<<B-2 <<endl;
cout<<”Line2”<<++B<<”&”<<A +3 <<endl;
}
}
3.
#include<iostream.h>
void main( )
{
Long NUM=1234543;
int F=0,S=0;
do
{
int R=NUM % 10;
if (R %2 != 0)
F += R;
else
S += R;
NUM / = 10;
} while (NUM>0);
cout<<F-S;
}
4. Rewrite the following program after removing the
syntactical error(s), if any. Underline each correction. 2
#include<iostream.h>
const int Multiple 3;
void main( )
{
value = 15;
for(int Counter = 1;Counter = <5;Counter ++, Value -= 2)
if(Value%Multiple = = 0)
cout<<Value * Multiple;
cout<<end1;
else
cout<<Value + Multiple <<endl;
5. Rewrite the following program after removing the syntactical
error(s), if any. Underline each correction. 2
#include<iostream.h>
const int dividor 5;
void main( )
{ Number = 15;
for(int Count=1;Count=<5;Count++,Number -= 3)
if(Number % dividor = = 0)
cout<<Number / Dividor;
cout<<endl;
else
cout<<Number + Dividor <<endl;
6. What will be the output of the following program
#include<iostream.h>
void main( )
{
int var1=5,var2=10;
for(int i=1,i<=2;i++)
{
cout<<var1++<”\t”<< - - var2<<endl;
cout<<var2- -<<”\t”<<+ + var1<<endl;
}
}
7. Write a program in C++ to perform sum
of the following series.
a)1/x- 3!/x2 + 5!/x3 - 7!/x4 + 9!/x5 - ------upto n terms.
b) Y + Y3 / 2! + Y5 /3! + ------ + Y 2m-1 / m!
c) 1 + x1/2! + x2/3! + x3/4! + x4/5! + - - - - - - xn/(n+1)!
d) 1+(1+2)+(1+2+3)........n
e) 1-x/2! + x*x/3!.....
f) 1*1 + 3*3 ...
g) 2*2 + 2*2+4*4 + ...... n*n
h) 1-x/1! + x3/2!....
i)1+[(1/2)]^2+[(1/3)]^3+……
8. Will the following program execute successfully? If not,
state the reason(s).
#include<stdio.h>
void main( )
{ int s1,s2,num;
s1=s2=0;
for(x=0;x<11;x++)
cin<<num;
If(num>0)s1+=num;else s2=/num;
}
cout<<s1<<s2; }
9. Find the syntax error(s), if any, in the following program:
include<iostream.h>
void main( )
{ int R; W=90;
while W>60
{
R=W-50;
switch(W)
{
20:cout<<.Lower Range.<<endl;
30:cout<<.Middle Range .<<endl;
40:cout<<.Higher Range.<<endl;
}
}
}
10. Write a program to print odd numbers in descending order?
11.Write a program to convert decimal to binary and vice versa?
12. Convert the following code segment into switch case
construct.
int ch;
cin>>ch;
If(ch = = 1)
{ cout<<“ Laptop”;
}
else If(ch = = 2)
{
cout<<“Desktop ”;
} else if(ch= = 3)
{
cout<<“Notebook”;
} else
{
cout<<“Invalid Choice”;
}
}
}
13. How many times “hello” will be printed in the following code fragment:
for (i=0; i<5; i++)
for (j=0; j<4; j++)
cout<< “hello”;
14. . A bank accepts a fixed deposit for one year or more and the policy it adopts on interest
is as follows:
i) if a deposit less than Rs. 2000 and for 2 or more years , the interest rate is five
percent compound annually.
ii) if a deposit is Rs. 2000 or more but less than Rs. 6000 and for 2 or more years,
the interest rate is seven percent compounded annually.
iii) if a deposit is more than or equal to Rs. 6000 and for 1 year or more , the
interest rate is eight percent compounded annually.
iv) on all deposits for 5 years or more , interest is ten percent compounded
annually.
v) on all other deposits not covered above conditions, the interest is three percent
compounded annually.
Given the amount deposited and number of years, write a program to calculate the money in the
costumers account at the end of the specified time
15. A computer programming contest requires teams of 5 members each. Write a program that
ask the user to enter number of players and then display the total number of teams and number of
player left over.
16. Predict the output of the following codes:( Make sure the Syntax is correct)
i) if(1)
cout<<” Be careful”;
cout<<”You might commit a mistake”;
ii) if(!5)
cout<<” How many times”;
else
cout<<”No more please”;
cout<<” O.K”;
iii) if(0)
cout<<”Third time again”;
cout<<”Last chance”;
else
cout<<” Very good”;
17. Write alternate code for the following codes using
i) Only if
ii) Using conditional operator
if(a= = 0)
cout<<” Zero”;
if(a= = 1)
cout<<” One”;
if(a = =2)
cout<<” Two”;
18. Write a program convert a date format DD/MM/YYYY to a full text format.
example:
input = 25/01/2009
output = 25 January, 2009
19. Program that reads two positive numbers n and r such that n>r ,then computes and displays
the value of nCr.(n!/(n-r)!)
20. Write a Program to add two integers without using "+" operator in C++ Programming
21. Write a program to print the factorial of first five elements of the fibonacci series.
EMIRATES FUTURE INTERNATIONAL ACADEMY, ABU DHABI
HOLIDAY HOMEWORK: 2014-2015
CLASS XI
ENGLISH
Instructions:
1. Attempt all questions.
2. Read the novel thoroughly before attempting the answers.
3. Answer neatly and legibly.
4. Printed materials will not be accepted.
I)PREPARE A BOOK REVIEW OF THE NOVEL “THE CANTERVILLE
GHOST”
II)Answer the following questions based on your reading of The Canterville
Ghost
1. Write a character sketch of Virginia as the harbinger of love and peace.
2. The most interesting part of the story is the reversal of the expected situation
when the Otis family terrorizes the ghost instead of being terrorized by him.
Discuss.
3. Discuss the setting of the story “The Canterville Ghost”.
4. “The Canterville Ghost” is a study of contrasts. Do you agree? Discuss.
5. Express your views on “Repentance leads to salvation” in the form of an article
for a magazine. Support your views with examples from the novel “The Canterville
Ghost” (English Project Book)
6. Design a poster for Book Week to increase awareness about the advantages of
reading. Use different characters of novels “The Cantervillle Ghost” and to urge
students to pick up a book to read. (English Project BooK)
7. “ Empathy and understanding can save many a doomed souls” - Elucidate this
statement with reference to the novel “The Cantervile Ghost in 150 words.
EMIRATES FUTURE INTERNATIONAL ACADEMY
HOLIDAY HOMEWORK – GRADE 11
MATHEMATICS
Answer the following:
1. If the ordered pairs (x,-1) and (5,y) belong to the set { (a, b) : b= 2a-3}, find the values of x
and y.
2. If A and B are two sets having 3 elements in common. If n(A)=5 , n(B)=4.Find n(AXB) and
n(AXB)n(BXA)
3. Find the domain and range of R = { [ x,x3] : x is a prime number less than a 10}
4. Find the domain for which the functions f(x) = 3x2-1 and g(x)= 3+x are equal
5. Find the domain for the real valued functions (i) f(x) = x-1/x-3 (ii) f(x) = x2+3x+5/x2-5x+4
6. Let U = { 1,2,3,4,5,6,7,8,9} , A= {2,4,6,8} and B= { 2,3,5,7,8}. Find (i) AI (ii) (AI)I
(iii) (AUB)I
(iv AПB I . Verify the following :
(i) (AUB)I = AI П BI
ii AПB I =
(AIUBI)
(iii) B-A = BП AI
7. Let A a d B e t o sets su h that A = , AUB = a d AПB)=8. Find (i) n(B) (ii)
n(A-B)
8. Find in set builder form (i) (-6,0) (ii) (2,5]
(iii) [-20 , 3)
(iv) [5,10]
2
2
2
2
9. Pro e that i
+ta αta β + ta α – ta β = sec αse β
10. Prove that tanA/1 – cotA + cotA /1-tanA = secA cosecA +1
11. If Sinϴ = 12/13 and ϴ lies in 2nd quadrant, then find the value of 8tanϴ- √ se ϴ
12. Prove that os π+ϴ ose π+ϴ ta π/ +ϴ)
Se π/ +ϴ) cosϴ ot π+ϴ)
13. For any triangle ABC, prove that b2-c2 Sin 2A + c2-a2 Sin2B + a2-b2 Sin2C = 0
.a2
b2
c2
14. Find the general solutions for the trigonometric equations
(i) Cot2ϴ + 3/Sinϴ + 3 = 0 (ii) tanϴ + tan2ϴ + tanϴtan2ϴ = 1
15. Find the value of (i) Sin 750 (ii) tan 750
16. The first term of a G.P is 1. The sum of third and fifth term is 90. Find the common ratio of
the G.P
17. Fi d the su of ter s of the series + + + + +…..
18. The product of three numbers in G.P is 216, but sum of their product in pairs is 156. Find
the numbers.
19. Find the sum of the series 12 + 42 + 72 + ….. ter s
20. Find the sum to infinity
(i) 1-1/2 +1/4 -1/8-------
(ii) 1/7 + 1/49 + 1/343------21. Solve 4x-7 > 5x-2 when (i) X is a natural number (ii) X is an integer (iii) X is a real number
22. Solve the linear inequalities
(i) 2x- 3 + 9
+ 4x
4
3
23. solve graphically
(i)
+
,
,
(ii) X, - - ,
,
24. The sum of two natural numbers is 121. If the sum of bigger number and four times the
smaller is equal to or greater than 271. Find all possible values of the smaller number.
25. Solve the system of inequalities
5x /4 +3x/8 > 39/8 , 2x-1 – x-1 < 3x+1
12
3
4
26. Using Principle of Mathematical Induction prove that 4n + 15n – 1 is divisible by 9 for all
natural number n.
27. Prove by induction the sum of the cubes of three consecutive natural numbers is divisible
by 9
28. Prove by the principle of athe ati al i du tio that for all ЄN , 2 +n is even natural
number.
29. Prove by the principle of mathematical induction
1 + 1 /2 + 1 /22 +……. + /2n-1 = 2 – 1/2n-1
30. Find the value of K for which -2/7 , k , -7/2 are in G.P
31. Using the Mathematical Induction, prove that 7n – 3n is divisible by 4
32. Fi d the do ai a d ra ge of /√9-x2
33. Q8. If z = x + iy and w= 1-iz , sho that │ │ = ,z is purel real.
Z-i
34. Show that the images of the complex numbers 3 + 2i, 5i, -3 + 2i and – i form a square.
35. For a complex number z, what is the alue of Arg z + Arg z z ≠ 0) ?
36. Show that │z- │ = 2 represents a circle
│z+ │
37. Find the square root of the following complex number:
i) 3+4i (ii) 12-5i
EMIRATES FUTURE INTERNATIONAL ACADEMY
HOLIDAY HOME WORK
CLASS
: XI
SUBJECT: PHYSICS
SECTION A
1. Which of the measurement is the most accurate and why?
a) 500.0 cm
b) 0.0005 cm c) 6.00 cm
2. Is it possible in straight line motion of a particles have zero speed and non zero velocity.
3. When is the magnitude of (A+B) equal to the magnitude of (A – B).
4. What is the angle between velocity and acceleration at the highest pint of a projectile
motion?
5. On a rainy day skidding takes place along a curved path. Why?
6. A spring is cut into two equal halves. How is spring constant of each half affected?
SECTION - B
7. The frequency of vibration (f) of a string may depend upon length (l) of the string,
tension (T), and mass per unit length (m).Use method of dimension for establishing the
formula for frequency.
8. Gunmen always keep his gun slightly tilted above the line of sight while shooting .why?
9. A mass is moving in a circular path with constant speed. What is the work done in 3/4th
of a rotation?
10. Derive the relation for the safe velocity of negotiating a curve by a body in a banked
curve.
11. A sto e is dropped fro
a height H . Prove that the energy at any point in its path is
mgH.
SECTION – C
12. Define the principle of conservation of linear momentum. Deduce the law of
conservation of linear momentum from third law of motion.
13. Derive an expression for the velocity of the two mass m1, and m2 moving with speed u1,
and u2 undergoing elastic collision in one dimension.
SECTION – D
14. One of the satellites of Jupiter, has an orbital period of 1.769 days and the radius of the
orbit is 4.22 x 102 m. Show that the mass of Jupiter is about one-thousand that of the
sun.
15. A car starting from rest, accelerates uniformly with 5 m/s2 for some time and then
decelerates t come to rest with 3 m/s2.Find the maximum velocity attained during the
motion and the distance covered in a total time of 6 second of the journey.
16. Rain is falling vertically with a speed of 10 √3 m/s.A man riding on a bicycle is moving
with a speed of 10m/s in north to south direction. What is the direction in which he
should hold his umbrella?
17. Calculate the area of a parallelogram whose adjacent sides are given by the vector.
A = i + 2j +3k ; B = 2i- 3j + k.
18. A shell of mass 0.020 kg is fired by a gun of mass 100kg.If the muzzle speed of the shell
is 80ms-1,what is the recoil speed of the gun?
19. A monkey of mass 40kg climbs on a rope which can stand a maximum tension n 600 N.In
which of the following case will the rope break the monkey.
(a) Climbs up with an acceleration of 6 ms-2
(b) Climbs down with an acceleration of 4m s-2
(c) Climbs up with a uniform speed of 5m/s
(d) Falls down the rope nearly freely under gravity?
20. A car of mass 1000kg travels up an incline of 1 in 25 at a constant velocity of 50km/h.
What power does the car engine have to develop if there is a resistive force of 300 N
opposing the motion?
21. A car of mass 1000kg accelerate uniform from rest to a velocity of 54km/h in 5 second
Calculate (a) its acceleration (b) its gain in K.E (c)average power of the engine during
this period, neglect friction.