SATYANAND PUBLIC SCHOOL, GOHANA

HOLIDAY’S HOMEWORK ( 2017-18)

CLASS IX

FOUNDATION OF IT (165)

MAKE A PROJECT FILE ON FOLLOWING TOPICS:-

1.Make a sheet showing that mobile is one of the best example of convergences of technology. (Ref. page no. 24, Lesson -1)

2.Type a take printout of biography of Charles Babbage. ( The father of Computer)

3.Surf on the Net and collect pictures of latest printers and Scanners atleast two sheet.

4.People who are visually –impaired face many problems in interacting and using a computer. Research to find out which input and output devices are specifically created to help the visually impaired people related to computers (Ref: page no. 72, lesson-3)

SCIENCE (BIOLOGY)

1. How are plasma membrane and call wall different from each other.

2. What will happens if :-

a) Ribosomes are removed from the cell

b) Golgi apparatus is removed from the cell

c) Plasma membrane raptures.

3. Differentiate between chromoplasts and leucoplasts give an example of chrommoplasts which have green pigment. Why is it green in colour

4. a) What causes movement in the muscles?

b) What are involuntary muscles? How do the they help in our body functions.

5. Name the cell organelle involved in the formation of lysosomes.

6. Name the following:-

a) Tissue that occur in specific region of growth

b) Tissue present at the growing tips of stems and routs.

c) Tissue at the base of the leaves or internodes on twigs.

7. How are the following related to each other?

a) Chromatin network and chromosomes.

b) Chloroplast and chlorophyll

c) Genes and DNA

8. State one important role of

a) Cellulose con cell wall

b) Presence of deeply folded membrane in mitochondria.

c) Digestive enzyme in lysosomes

9. a) Name the process by which meristematic tissue changes into permanent tissue.

b) Name the simple permanent tissue which contain chlorophyll in it.

c) Aquatic plant float in whiter. Give reason.

10. Why is blood considered a type of connected tissue.

11. a) Voluntary muscles are also known as skeleton muscles. Justify.

b) Give two characteristics of these voluntary muscles.

12. a) Which connective tissue matrix contains salts of calcium and phosphorus.

b) Which connective tissue present in ear?

c) Which connective tissue connects two bones

13. What is different between ligament and tendon.

14. Draw a labelled diagram of a neuron

15. Name the liquid matrix of the blood. What does it contain? List any two functions of blood.

PHYSICS

1. Prove v=u+at by graphical method.

2. What is circular motion? Give an example

3. Prove distance = Area under v-t graph

4. A bus is starting from attain a value of 90 km/l in 10 records.

Calculate (i) Acceleration (ii) Distance covered.

5. An object is moving in a circular path of radius 2 meter. If time period is 20 second than find its speed.

6. State Newton’s lows (three) of motion.

7. Give mathematical relation for newton’s 2nd law.

8. If mass of an object is so gm & force applied on it is 20 newton. Find acceleration.

9. Give one example from each type of inertia.

10. Plot graphs ( v-t) and (x-t)

a) for uniform, motion b) non uniform motion.

CHEMISTRY

1. What is difference in b/w vaporisation and evaporation?

2. What do you mean by latent heat of vaporisations.

3. What is value of absolute zero?

4. Convert 37 c into kelvin

5. What is sublimation? Given on examples.

6. Why should we wear cotton clothes in summer?

7. Why does our palm feel cold when we put some acetone or petrol on it.

8. We get the smell of perfume sitting several meter away?

9. An iron almirah is a solid at room temp why?

10. What produces a severe burn, boiling water or steam?

11. What is an atom? Explain Thomson model of an atom.

12. What are the draw backs of Rutherford’s models.

13. Arrange the no. of electrons in k, l, m, n shells

For (i) Na (ii) Mg (iii) Nitrogen

14. Explain Rutherford’s model.

ENGLISH

NOTE:- Use separate file for ‘Holidays Homework’

1. Write the following articles:

a) Begging is a curse

b) Child Labour

c) Rain water harvesting: A way to avoid wastage of water

d) ways to control noise Pollution

2. You have just passed your grade VIII final examination. Write a short diary entry in about 120 words expressing your feeling about your success.

3. Use the following points from full marks:

Assignments to write a diary entry:- pg. no. 65Burglar entered my friend’s house- Brake the lock

4. Compete the story in about 150-200 words:

Two friends Raman and Sarthak were passing through a dense forest suddenly they heard a load roar of the tiger. What happened then?

5. Do Unsolved Assignment for Factual Passages – 1 to 9 (page 17-34) full marks in book.

6. integrated Exercise for Practices Pg. (113-120) Do in Full Marks book.

7. Revise the syllabus completed in the class.

SOCIAL SCIENCE

1. Revise the whole syllabus of two months April and May covered in the class

2.Assignments:-

Write the causes of French Revolution also mention the condition of France before Revolution in details.

4. Make a list of states of India in terms of area population literacy level (highest & smallest.

5. Make a brief detail of Haryana its districts in respect of area wise , population, education Lok Sabha seats and Rajya Sabha seats of different parties in Haryana.

6. Explain the major reason for the two hours time difference in local time between Arunachal Pradesh and Gujarat.

7.Though democracy is considered to be the best form of government it is not an ideal form of government. Give five arguments to prove the above statement.

On the given political outline map of India locate & label the following with appropriate symble.

1. Vindhya Range 2. Satpura Range3. Deccan plate am4. Kara Koram Mountain Range 5. K2 6. Eastern Ghats & Western Ghats 7. Shipki La Pass

8. Lakshadweep9. Narmada River10. Tropic of Canser11. Southern most point of India 12. Ganga River

MATHEMATICS

  1. Insert a rational and an irrational number between 2 and 3.
  2. Find two irrational numbers between 2 and 2.5.
  3. Simplify:-
  4. If x, y, z are positive real numbers show that . . = 1
  5. Show that = c = 1
  6. For any positive real number x, find the value of : a+b X b+c X c+a
  7. Find the value of
  8. If x = 1-, find the value of (x -)3
  9. Rational the denominator & simplify:- (a) (b)
  10. Simplify:- (i) ()2(ii) ( - )2(iii) (2)2(iv) ( - )
  11. Simplify:-
  12. If a+b+c = 9 and ab + bc + ca = 40, find a2+b2+c2.
  13. Simplify:- (a) (a+b+c)2 + (a-b-c)2(b) (a+b+c)2 - (a-b-c)2
  14. If a+b=10 and a2 + b2=58 find the value of a3 + b3.
  15. Find the following procuct:- (7p4 + q)(49p8-7p4q+q2)
  16. EVALUATE:- 303 + 203 - 503
  17. Prove that:- = 1
  18. If , then find the value of a and b.
  19. Without actual division, prove that (2x4 – 6x3 + 3x2 + 3x – 2) exactly divisible by (x2 – 3x +2).
  20. Factorise: a12x4 – a4x12
  21. Simplify the factorisation method:-
  22. If (x+2) is a factor of x3+13x2+32x+20, then factorise it.
  23. Three vertices of a rectangle are (-4,5), (-4,2) and (3,2). Plot these points and find the co-ordinates of the fourth vertex.
  24. (i) Write the abscissa and ordinate of the origin.

(ii) What is the measure of the angle between the coordinate axes?

(iii) In which quadrant or axis (-4,0) and (7,0) lie?

(iv) The ordinate of any point on x-axis is (a) 0 (b) 1 (c) -1 (d) any number

(v) The abscissa of any point on y-axis is (a) 0 (b) 1 (c) -1 (d) any number

(vi) What is the perpendicular distance of the point P(4,3) from x-axis and from y-axis?

(vii) What is the area of the triangle formed by the points P(0,1), Q(0,5) and R (3,4)?

  1. (i) Plot each of the points A(-2,4), B(-2,-3), C(4,-3) and D(4,4).

(ii) Draw the segments AB, BC, CD and DA. What is the name of the figure ABCD?

(iii) What the coordinate of the point where the segment AD cuts the y-axis?

(iv) What is the coordinate of the points where the segment CD cuts the x-axis?

  1. State Euclid’s first four postulates with supporting diagrams.
  2. In the figure, angle ABC = angle ACB, angle 3 = angle 4. Show that angle 1 = angle 2, using an Euclid’s axiom.
  1. In the given figure, x and y are mid-points of AB and BC respectively. If AX=CY, then show that AB=BC.
  1. It is given that a + b=10 and a = c. show that c + b=10.
  2. In the figure. AE = DF, E is the mid-point of AB and F is the mid-point of DC. Using an Euclid’s axiom, show that AB = DC.
  1. A bag contains tickets which are numbered from 1 to 100. Find the probability that a tickets number picked up at random. (i) is a multiple of 7. (ii) is not a multiple of 7.
  2. Two coins are tossed simultaneously. Find the probability of getting:- (i) at least one head. (ii) both heads.
  3. 100 cards marked from 2 to 101 are placed in a box and mixed thoroughly. One card is drawn at random from the box. Find the probability that number on the card is (i) an even number (ii) a number which is a perfect square. (iii) a prime number less than 20.
  4. The age (in years) of workers pf a factory are as follows:

Age (in years) / Number of workers
10-19 / 5
20-29 / 40
30-39 / 26
40-49 / 15
50-59 / 8
60 and above / 6

If a worker is selected at random, find the probability that the worker is:

(i)30 years or more

(ii)Below 50 years

(iii)Having age from 10-19 years.

  1. Probability of success of an event is 53%. Find the probability of failure of this event.
  2. In a single throw of two dice, what is the probability of getting a sum of 9.
  3. Two coins are tossed simultaneously 500 times. If we get two heads 100 times, one head 270 times and no head 130 times. Then find the probability of getting one or more than one head.
  4. Write and learn the tables of 11 to 30. Two time
  5. Write and learn 10 Algebric identities. Two time
  6. Revise all the chapters done in the class from NCERT & R. S. Aggarwals.

HINDI