weekly assignment · 2020. 9. 11. · complete the following assignment questions q1 name the...

Month- AUG Week – 1

Class- VII Subject- English

Complete the following assignment questions SUB- English. Chapter- The Ashes that made Trees Bloom. Working with Text Working with Language.. Page no- 64, 65 and 66.

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Class- VII Subject- Marathi

Complete the following assignment questions

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Class- VII Subject- Maths


Q1. Prepare the frequency table for the following data:

5,2,1,3,4,4,5,6,2,2,4,5,5,6,2,2,4,5,5,1.

Q2. Find the mean of first five natural numbers.

Q3. Find the mean of first five prime numbers.

Q4. The weights of 10 students (kg) are:

40,52,34,47,31,35,48,41,44,38,42

Find the median weight.

Q5. Find the median of first 10 even numbers. Q6. The ages (in years) of 11 cricket players are given below:

28,34,32,41,36,32,32,38,32,40,31.

Find the mode of ages.

Q7. The distance covered by 10 athletes in 1 minute in a sprint race

of 400 m is :

299,248,315,320,286,370,388,379,295,300.

a) What is the maximum distance covered in 1 minute? b) What is the minimum distance covered in 1 minute? c) What is the range of the data? d) What is the mean of the data? e) How many athletes have covered distance more than the

mean distance?

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Q8. The following table show the no. of boys and girls who have participated in various events conducted by a Rotary club of a city. Draw a double bar graph to represent the given data using an appropriate scale:

Event Dance Drama Sports Rangoli Singing

Boys 400 480 670 220 710

Girls 580 330 590 610 720

Q9. Given below is the marks (M.M-100) obtained by Samaira (class VII) in First and Second Terminal Exam 2014. Represent it using a double bar graph.

Subject English Hindi Maths Science So. Science

Sanskrit

1st term 92 93 98 91 99 100

2nd term 98 97 100 100 99 100.

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Class- VII Subject- Physics


1) Name the instrument which is used to measure the speed of wind.

2) Name the factor responsible for the increase of speed of wind

3) What is the main cause of wind movement?

4) How you can find out wind direction at a given place.

5) Name the ocean which is mainly responsible to bring rain bearing monsoon winds to Kerala coast in June every year.

6) What causes lightening?

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Class- VII Subject- Chemistry

Complete the following assignment questions --------------------------------------------------------------------------------------------------------------------- Q1 Give the formula to calculate the absorption percentage. Q2 Draw a diagram to show the different layers of soil. Q3 Name two soil types used for cultivation Q4 There are two components of soil one that comes from living thing and other from non-living thing. What are these two components? Q5 The percolation rate varies from soil to other soil. Which soil would have the highest and least percolation rate? Q6 The percolation rate varies from soil to other soil. Which soil would have the highest and least percolation rate? ------------------------------------------------------------------------------

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Class- VII Subject- Biology


1) What is humidity?

2) Which instrument is used to measure rainfall?

3) Name the elements that determine the weather of a place.

4) When are the maximum and minimum temperatures likely to

occur during the day?

5) Explain the difference between weather and climate

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Class- VII Subject- History


Q1.Who is an MLA? Q2.What is the purpose of a press conference?

Q3.How did some MLA’s become ministers. Explain. Q4.What is meant by constituency?

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Class- VII Subject- Geography

Complete the following assignment questions 1. Draw a diagram of ‘ Composition of the Atmosphere’. Explain. 2. Draw a diagram of byepass of Atmosphere.

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Class- VIII Subject- English

Complete the following assignment questions Lesson 4 Bepin Chaudhary's Lapse of Memory Comprehension Check- Page 63,65,68,70 Working with the text Page 70 Lesson 4 Difficult words with meanings

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Class- VIII Subject- Marathi


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Class- VIII Subject- Maths

Complete the following assignment questions Q.1 State whether the following are true or false a)

b)

c)

d)

e)

f)

g)

h)

i)

j)

k)

l)

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Q.2 Q.3

Q.4

Q.5

Q.6


Class- VIII Subject- Physics

Complete the following assignment questions 1 Name the force which always opposes motion? 2 Name two common lubricants. 3 why are grooves provided in the the soles of shoes ? 4 what are fluids? Give two examples of fluids that you know. 5 What are the factors affecting the friction?

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Class- VIII Subject- Chemistry

Complete the following assignment questions Q1 Name the process of conversion of wood into coal. Q2 Name the gas that occurs over petroleum in reservoirs deep inside the earth. Q3 Define destructive distillation of coal. What are substances occurs in this process? Q4 Define fossil fuels. Give examples. Q5 Write uses of coal tar. -----------------------------------------------------------------------------------

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Class- VIII Subject- Biology


1) Why should we conserve biodiversity?

2) What is the purpose of making national parks, wildlife

sanctuaries and biosphere reserves?

3) What are endemic species?

4) What is ‘Project Tiger? What was the objective of this project?

5) How does recycling and saving of paper relate to deforestation?

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Class- VIII Subject- History

Complete the following assignment questions Q1.Who will be present for discussion in the Loksabha? Q2.What is a coalition means? Q3.Why is that important all adults have a right to vote? Q4.What is the name of the member of the parliament (Loksabha) from your constituency. Q5Write a short notes on the role of the parliament.

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Class- VIII Subject- Geography

Complete the following assignment questions Draw a Diagram of A) Nuclear Energy (Fig 3.19 page35) B) Tidal Energy (Fig 3.22 page36)

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Class- IX Subject- English

Complete the following assignment questions Reader Lesson 3 A Truly Beautiful Mind Thinking about the Text Page 50,51,52 Page 53 Writing activity Writing Newspaper Report

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Class- IX Subject- Marathi


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Class- IX Subject- Maths

Complete the following assignment questions Q.1

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Q.2

1.

2.

3.


Class- IX Subject- Physics

Complete the following assignment questions 1 Name the quantity which is measured by the area occupied under the velocity time graph. 2 what does the slope of a speed time graph give us? 3 What does the slope of a distance time graph give us? 4 Define: Uniform circular motion 5 Write the formula for speed of a body in uniform circular motion.

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Class- IX Subject- Chemistry

Complete the following assignment questions Q1. Solutions do not exhibit Tyndall effect. Explain Why?

Q.2 What are the characteristics of mixture?

Q.3 When we open the cap of an any carbonated beverage (like Pepsi drink), why does excess of bubbles come out?

Q.4 What are suspensions? Explain with an example.

Q5 Differentiate between solution, suspension and colloids -------------------------------------------------------------------------

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Class- IX Subject- Biology


1. What are responsible for the contraction and relaxation of muscles?

2. Why are skeletal muscles called voluntary muscles?

3. Why do the plants or animals, require different types of cells in their body?

4. Why xylem and phloem are called complex tissues?

5. What are involuntary muscles? Where are they found? 6. Draw a labeled diagram of parenchyma.

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Class- IX Subject- History


1. Which values are associated with the term Democracy? 2.How arethe differences and conflicts dealt within a democracy? 3.What are the merits and demerits of democracy? 4.What amendment did General.Parvez Musharaf bring in the constitution of Pakistan by issuing legal frame work order in August 2002?

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Class- IX Subject- Geography

Complete the following assignment questions Class IX Geography . --------------------------------------------------------------------------- Chapter 3. Drainage Q1. Why are most of the peninsular Rivers seasonal?

Q.2 Differentiate between the Ganga and the Godavari river system.

Q3. Why Godavari River is called as Dakshin Ganga?

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Class- X Subject- English

Complete the following assignment questions Chapter- From the Diary of Anne Frank

Thinking about the Text.. Page no 54

Thinking about Language.. page no55, 56,57.

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Class- X Subject- Marathi


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Class- X Subject- Maths


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Class- X Subject- Physics

Complete the following assignment questions 1 What do you mean by spherical mirror formula? 2 Write spherical mirror formula 3 Define: focal length of a convex mirror 4 Draw a ray diagram for formation of image when an object kept at focus of a concave mirror 5 An arrow 3 cm high is placed at a distance of 25 cm from a diverging mirror of focal length 20cm. Find the nature, position and size of the image formed

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Class- X Subject- Chemistry

Complete the following assignment questions 1.Write one example of each of (i) a metal which is so soft that, it can be cut with knife and a non-metal which is the hardest sustance. (ii) a metal and a non-metal which exist as liquid at room temperature.

2.Mention the names of the metals for the following: (i) Two metals which are alloyed with iron to make stainless steel. (ii) Two metals which are used to make jewellary. 3.State three reasons for the following facts (i) Sulphur is a non-metal (ii)Magnesium is a metal

4.Define activity series of metals.

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Class- X Subject- Biology

Complete the following assignment questions Q.1 What is reproductive health? Q.2 What are sexually transmitted diseases? Name ant two such diseases. Q.3 Why is tubectomy considered a contraceptive method? Explain. Q.4 Suggest the methods to check the present population growth rate in India. Q.5 What is vasectomy? What are its uses?

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Class- X Subject- History

Complete the following assignment questions Q1.Who has designed the swaraj flag by 1921? Explain the main features of swaraj flag. Q2Who wrote vandemataram? What is it? Q3.Describe the portrait of Bharatmata and also its different image forms. Q.4 How culture played a vital role in awakening of the feeling of nationalism.

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Class- X Subject- Geography

Complete the following assignment questions -----------------------------------------------------------------------------

Forest and Wildlife Resources.

1)Use six outline maps of India and mark the following a)Important National Parks of India b) Important Wildlife Sanctuaries of India

c) Important Biosphere Reserves of India d)Important bird Sanctuaries of India --------------------------------------------------------------------

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Class- XI Subject- English

Complete the following assignment questions A..Answer the following questions in about 30-40 words

:

1.What happened when Ranga returned to his village from the city of Bangalore ?

2.How did the old lady satisfy herself about Ranga?

3. Why does the narrator refer to Black Hole of Calcutta?

4. What examples did Ranga give to explain the importance of marrying late?

5. Why did the narrator tell Ranga that the girl was married year ago?

6. In what mental state did the narrator find Ranga? What solution did he offer? How did

Ranga react to it?

7. What according to the astrologer was Ranga's cause of worry? How did the name

Ratna croup?

8. How did narrator test the sincerity of Ranga's feelings about Ratna?

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9. What did the narrator tell Shastri about his performance? How did Shastri react to it?

10. Comment on the ending of the story 'Ranga's Marriage.'

B .Read the stanzas given below and answer the questions that follow:

The whole tree trembles and thrills.

It is the engine of her family

She is stoked it full, then flirts out to a branch end

Showing her barred face identity mask

Questions

1. Why does the whole tree tremble and thrill?

2. Why does the poet refer to the engine? How does she 'stoke' it full?

3. How does the Goldfinch appear?

Then with a delicate whistle- chirrup whisperings

She launches away towards the infinite And the laburnum subsides to empty.

1.How does Goldfinch leave the branch end ? 2.what do you think is the destination of the Goldfinch?

3.what is the state of the laburnum tree after the Goldfinch flies away ?

4.Do you notice any similarity /contrast between the beginning and ending of the poem? State it briefly.


Class- XI Subject- Maths


1. Show that : sin sin 3 sin 5 sin 7 cot 2cos cos3 cos 5 cos 7

A A A A AA A A A

.

2. Show that : sin 8 cos cos3 sin 6 tan 2cos 2 cos sin 3 sin 4

A A A A AA A A A

.

3. If 1 3cot , cos ,2 5

where 32

and 2

, find the value of

cot .

4. Show that : 2 2 1sin sin sin8 2 8 2 2

A A A

.

5. Show that : 0 0 0tan 70 2 tan 50 tan 20 .

6. Find the general and principal solution of:

(i) tan3 1 (ii) cos 2 2ec

(iii) sin sin3 sin5 0x x x (iv) cos cos2 cos3 cos4 0x x x x .

(v) 1tan3 2

7. Write in simplest form : 2 2 2 cos 4 .

8. If sin sinx y a and cos cosx y b , then find 2 2tan tan2 2

x y x y

in terms

of a and b .

9. If ba

tan, then find 2sin2cos ab .

10. If tan θ = and tan ϕ = , then find the value of θ + ϕ .

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Class- XI Subject- Physics

Complete the following assignment questions 1. A stone is thrown from ground level over horizontal ground. It just clears three walls, the

successive distances between them being r and 2r. The inner wall is 15/7 times as high as the outer walls which are equal in height. The total horizontal range is nr, where n is an integer. Find n.

2. Which two quantities are constant throughout projectile motion when air resistance is negligible? (a) The speed and acceleration. (b) The vertical component of velocity and acceleration. (c) The magnitude of the acceleration and the speed. (d) The horizontal component of velocity and acceleration. (e) The direction of the velocity and acceleration.

3. A truck goes around a circular track of radius R at speed v so that it makes one circuit every T seconds As it does so it experiences a centripetal acceleration of magnitude p.If the truck now goes around a different circular track of radius 4R so that it now takes a time ½T to go around once, what is the magnitude of its centripetal acceleration? (a) ½ p (b) 16p. (c) 4p. (d) 8p.

4. 4Which one of the following statements is true?

(a) A scalar quantity is the one that is conserved in a process. (b) A scalar quantity is the one that can never take negative values. (c) A scalar quantity is the one that does not vary from one point to another in space. (d) A scalar quantity has the same value for observers with different orientations of the axes

5. For a particle performing uniform circular motion, choose the correct statement(s) from the following: (a) Magnitude of particle velocity (speed) remains constant. (b) Particle velocity remains directed perpendicular to radius vector. (c) Direction of acceleration keeps changing as particle moves. (d) Angular momentum is constant in magnitude but direction keeps changing 6. A ball is thrown from a roof top at an angle of 30° above the horizontal. It hits the ground a few seconds later. At what point during its motion, does the ball have (a) greatest speed.

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(b) smallest speed. (c) greatest acceleration? Explain 7. A football is kicked into the air vertically upwards. What is its (a) acceleration at the highest point (b) velocity at the highest point? 8. What will the effect on horizontal range of a projectile when its initial velocity is doubled keeping the angle of projection same? 9. What is the angle between the direction of velocity and acceleration at the highest point of a projectile? 10. A bomb is fired from a cannon with a velocity of 1000 m/s making an angle 30° with the horizontal a. What is the time taken for the bomb to reach highest point b. What is the time of flight c. What is the maximum height reached d. what is the range Take g=9.8 m/s2


Class- XI Subject- Chemistry


Q.1 Explain Emission and Absorption spectra with respect to Hydrogen atom. Q.2 Applying Bohrs model of atom, Calculate the wavelength of the radiation emitted

when an electron in a Hydrogen atom makes a transition from fourth energy level to first energy level.

Q.3 Calculate the energy associated with the first orbit of He+ ion. What is the radius of

this orbit? Q.4 What is the frequency and wavelength of a radiation of a photon emitted during a

transition from n = 5 to n = 2 state in the Hydrogen atom Q.5 (a) Calculate the radius of the second orbit in Li2+ ion. (b) Calculate the wave number of a radiation when an electron in Hydrogen atom

returns from 5th energy level to 2nd energy level. Also calculate its frequency.

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Class- XI Subject- Biology


Class XI –AUG-1

1. Mention the cellular components of blood. 2. Where are the following found in the animal body?

1. Chondrocytes 2. Axons 3. Ciliated epithelium

3. What are the different cell junctions found in tissues?

4. What is connective tissue?

5. List out the cellular components of blood? 6. What are Tissues? What are the 4 major types of tissues? 7. Which tissue provides support and surface for attachment of

muscle?

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Class- XI Subject- Computer


Assignment 11

Explain Assignment in python with examples

Write different functions in import math

With separate example program for each

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Class- XII Subject- English


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Class- XII Subject- Maths


1. Find dxdy for y = log [x + 21 x ]

2. Find dxdy for y = tan-1

212

xx

3. Find dxdy for y = xsec x

4. For y = log xx

cos1cos1

, show that

dxdy = cosec x.

5. Find the interval at which f(x) = x3 + 3 x2 – 4 is increasing. 6. Show that f(x) = tan x – 4x is decreasing in

3

< x < 0.

7. If y = ......... xxx , prove that dxdy =

121y .

8. Find the largest possible area of a right angled triangle whose hypotenuse is 5 cm long.

9. Find all the points of local maxima and minima and the corresponding maximum and minimum values of the function: f(x) = 105

2458

43 234 xxx

10. Show that the rectangle of maximum perimeter which can be inscribed in a

circle of radius ‘a’ is a square of side a2 11. A figure consists of a semi-circle with a rectangle on its diameter. Given

the perimeter of the figure, find its dimensions in order that the area may be maximum.

12. Show that the volume of the greatest cylinder which can be inscribed in a cone of height ‘h’ and semi-vertical angle ‘’ is 23 tan

274 h

.

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Class- XII Subject- Physics


1. A wire of length 3 m and area of cross-section 1.7 × 10-6 m2 has a resistance 3 × 10-2 ohm. a. What is the formula for resistivity of the wire and what is the unit of it b. Calculate the resistivity of the wire

2. There are m resistor each of resistance R. First they all are connected in series and equivalent resistance is X. Now they are connected in parallel and equivalent resistance is Y. What is the ratio of X and Y? 3. Resistivity of the material of a conductor having uniform area of cross-section varies along its length according to the relation ρ= ρ0 (a+bx) if L is the length of the conductor and be the area of cross-section then resistivity of the conductor given by relation

5. Given a current carrying wire of non-uniform cross-section. Which of the following is constant through out the wire. (a)Current only (b)Current and drift speed (c)Drift speed only (d)Current, drift speed and electric field

6. When potential difference across a given copper wire is increase, drift velocity of charge carriers

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(a)Decreases (b)Increases (c)Remain same (d)Get reduced to zero

7. A material B has twice the specific resistance of the material A. A circular wire made of B has twice the diameter of the wire made of A. Then , for the two wires to have to have the same resistance, the ratio La/Lb of their respective lengths must be (a) ½ (b) 2 (c) ¼ (d)1

8. hat will be the equivalent resistance between A and D

(a)40 Ω (b)20Ω (c)30Ω (d)10Ω

9. In the given circuit below the equivalent resistance between points A and C

(a)32 (b)30.7 (c)33.07 (d)3.07

10. A circular ring having negligible resistance is used to connect four resistors as shown below in the figure. The equivalent resistance between point A and B is

(a)10R (b)2R (c)3R (d)R

11. Which of the following characteristics of electrons determines the current in a conductor? (a) Drift velocity alone. (b) Thermal velocity alone. (c) Both drift velocity and thermal velocity. (d) Neither drift nor thermal velocity.

12. If a wire is stretched to make it 0.1% longer, its resistance will (a) increase by 0.2% (b) increase by 0.05% (c) decrease by 0.2% (d) decrease by 0.05%


Class- XII Subject- Chemistry


1) Consider the hypothetical aqueous raeaction : A(aq) B(aq) . A flask is charged with 0.065 mol of A in total volume of 100.0 ml. The following data are collected. Time (min) 0 10 20 30 40 Moles of A 0.065 0.051 0.042 0.036 0.031 (a) Calculate the number of moles of B at each time in the table. Assume that there are

no molecules of B at time zero. (b) Calculate the average rate of disappearance of A for each 10 min interval, in units of mol/sec. (c) Between t = 10 min and t = 30 min, what is average rate of appearance of B in unit M/sec.

2) (a) Consider the combustion of H2(g) according to the reaction. 2H2(g) + O2(g) -2H2O(g). If

hydrogen is burning at the rate of 4.6 mol/sec, what is the rate of consumption of oxygen ? What is the rate of fomation of water vapor ?

(b) The reaction 2NO(g) + Cl2(g) 2NOCl(g) is carried out in closed vessel. If the partial pressure of NO is decreasing at the rate of 30 torr/min, what is the rate of change of the total pressure of the vessel ?

3)Show that for a first order reaction, time required for 99% completion is twice for the time

required for the completion of 90% of the reaction.

4)The decomposition of Cl2O7 at 400 K in the gas phase to Cl2 is of order. After 55 sec and O2 at 400 K , the pressure of Cl2O7 falls from 0.062 to 0.044 atm. Calculate : (a) The rate constant. (b) Pressure of Cl2O7 after 100 sec.

5) The decomposition of N2O5 according to aquation 2N2O5 (g) → 4NO2(g) + O2(g) is a first order reaction. After 30 minutes from start of the decomposition in a closed vessel, the

total pressure developed is found to be 284.5 mm of Hg and on complete decom position, the total pressure is 584.5 mm of Hg. Calculate the rate constant of reaction

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Class- XII Subject- Biology


CLASS XII-AUG-1

1. Give any two reasons for the selection of pea plants by Mendel for his experiments.

2. Name any one plant that shows the phenomenon of incomplete dominance during the inheritance of its flower color.

3. A hemophilic man marries a normal homozygous woman. What is the probability that their daughter will be hemophilic?

4. Name one trait each in humans & in drosophila whose genes are located on sex chromosome.

5. Which one change is the cause of sickle – cell anaemia?

6. What is a test cross?

7. What was the total number of varieties of garden pea which Mendel had taken to start his experiment?

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Class- XII Subject- Computer


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weekly assignment · 2020. 9. 11. · complete the following assignment questions q1 name the...

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