Mgps/Holidays HW/IX/English/2021-22

Q-1. India is known for its cultural riches manifested in music, dance,

art etc. make a power point presentation/ video/ brochure displaying

cultural wealth of India. (roll no-1to30)

Q-2. ‘The Lost Child ‘echoes the thought that parental love and care is

irreplaceable getting inspiration from the chapter make a memory

chart showing beautiful moments you and your parents cherished

together. Write a heartwarming note/caption for each. (31 onwards).

Q-3. Poem ‘Wind’ conveys the idea ‘Steely resolves and untiring efforts

only pave way to Success’. Create a story conveying the same moral.

Q-4. Studying online you all must be missing the fun and learning

happen in school, write a diary entry expressing your feelings and all

that you miss about your school.

Mgps/Holidays HW/IX/Hindi/2021-22

प्रश्न (1) अऩने ऺेत्र की गौशाऱा के समचुित रखरखाव के लऱए गौशाऱा अचधकारी

को ऩत्र लऱखखए। ( गद्य कॉऩी )

प्रश्न (2) ददए गए सकेंत बफदंओुं के आधार ऩर उचित शीषषक देते हुए ऱघुकथा (150-200 शब्दों में ) लऱखखए |

ककसी नगर में एक ईमानदार एवं कतषव्यऩरायण व्यक्तत ----------- जीवन में दघुषटना का घदटत होना ------ कारोफार नष्ट ---- ईश्वर में आस्था व स्वयं की मेहनत ऩर ववश्वास – ........ एक नए जीवन की शुरुआत ----मेहनत करना ---ऩररवार का सहयोग --- सपऱता प्राप्त करना।

Mgps/Holidays HW/IX/ laLd`r /2021-22

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Mgps/Holidays HW/IX/Mathematics/2021-22

Activity 1: Find lateral surface area and Total surface area of any one 3D object

(Cuboid, cube, cylinder)

Activity 2: Compare the performance of two teams of IPL of a particular match

using bar-graph and pie chart by taking runs scored in 5 overs at a time

Topics to learn: squares of 1 to 30, multiplication tables up to 25, cubes up to 15,

Algebraic identities, formulas of surface area and volume

Parameters of Assessment: Content, accuracy, neatness, creativity and

originality.

Note:

● prepare a chart/ ppt/ model of above-mentioned activities

● worksheet to be done in practice copy

(MATHS WORKSHEET)

Multiple Choice Questions

1. Every rational number is

(a) A natural number (b) An integer (c) A real number (d) A whole number

2. The decimal representation of an irrational number is

(a) Always terminating

(b) Either terminating or repeating

(c) Either terminating or non-repeating

(d) Neither terminating nor repeating

3. √ × √ is equal to

(a) 6√ (b) 5√ (c) √ (d) 10√

4. =

(a) 5 (b) -5 (c)

(d)

5. √ ÷ √ is equal to

(a) √ (b) 4 (c)

(d) 16

6. If x is a positive real number, then √√ is

(a) (b) (c) (d)

7. If √ = 1.414, then the value of √ ÷ √ up to three places of decimal is

(a) 0.235 (b) 0.707 (c) 1.414 (d) 0.471

8. Simplest rationalization factor of √

is

(a) √

(b) √

(c) √ (d) √

9. If a = √ √ and b = √ √ , then the value of (a + b) is

(a) √ (b) 2 √ (c) √ (d) √

10. If n is a natural number, then √ is

(a) Always a natural number

(b) Always a rational number

(c) Always a irrational number

(d) Sometimes a natural or rational number and sometimes an irrational number

Short Answer Type-I Questions

11. Find a rational number lying between 0.75 and 1.2

12. Convert 35/16 into decimal form.

13. Express 0.1 in the form of p/q

14. Evaluate:

√ √

15. Simplify √

16. Rationalise the denominator of

√ √

17. If = 1 - √ , find the value of +

18. Represent √ on the number line

19. Show that 0.142857142857…………. = 1/7

20. Simplify: (√ √ )2

Short Answer Type-II Questions

21. Visualise 3.2345 on the number line, using successive magnification.

22. Simplify: 2√ × 3√ × 4√

23. If 2m + 2m+1 = 96, then find the value of m which satisfy the given equation.

24. If =4 - √ , then find the value of 2 +

25. Evaluate :(√ √ ) + (√ √ )

26. If ap = bq = cr and b2 =ac, then show that q =

27. Represent √ on the number line

28. Simplify: √

√

29. If a=2 and b=3, then find the value of (ab + ba)-1

30. Find the value of √ √

√ √

Long Answer Type Questions

31. Simplify:

√ √ +

√

√ √ -

√

√ √

32. Find the value of

+

+

33. Prove that

+

=

34. If a and b are rational number and √

√ = a - b√ , find the value of a and b

35. Rationalise the denominator of

√ √

36. If a and b are rational numbers and √ √

√ √ +

√ √

√ √ = a + b√ , find the value of a and b

37. If = 5 - 2√ , find the value of 2 +

38. If x = √ √

√ √ , then show that q x2 – px + q =0

39. Simplify √ - 5√ + √ - 3√

40. If x= 7+ √ , then find the value of √ +

√

Mgps/Holidays HW/IX/Science/2021-22

Instructions:

Prepare a scrap book/chart/model/working model (try to use the things

available at home) on any one of the given themes below:

Theme: Digital India

Your scrap book/chart/model/working model must include:

Digital solutions for education

Health care

Governance

Smart cities and smart villages etc.,

Theme: Swasth Bharat

Your scrap book/chart/model/working model must include:

Preventive health care (Hygiene and sanitation)

Traditional and alternative medicine

Lifestyle management

Awareness creation

Theme: Protection of Endangered Species

Your scrap book/chart/model/working model must include:

The endangered species of India

Habitat protection and conservation of endangered plants and animals

Endangered species act

Protecting and restoring the habitats of endangered species

Theme: COVID – 19

Your scrap book/chart/model/working model must include:

Causes

Symptoms

Cure and precautions

Data compilation (State, National and International)

Steps taken by the Government to prevent its spread

Revise lesson 1, 5 and 8

Solve the worksheets given below for Physics, Chemistry and Biology in

the respective Home Work Note Books.

PHYSICS WORK SHEET Q1. A car travels at 54 km/h for first 20 s, 36 km/h for next 30 s and finally 18 km/h for next

10 seconds. Find its average speed.

Q2. The speedometer readings of a car are shown below. Find the acceleration of the car and

its displacement.

Time Speedometer

9:25 a.m. 36 km/h

9:45 a.m. 72 km/h

Q3. Draw velocity time graph for a body that has initial velocity ‘u’ and is moving with

uniform acceleration ‘a’. Use it to derive v = u + at; s = ut + ½ at2, and v

2 = u

2 + 2as

Q4. Define uniform circular motion. Is it an accelerated motion? If yes, what is the direction

of acceleration? Give an example of this type of motion?

Q5. The velocity-time graph for motion of two bodies A and B is shown. Read the graph

carefully and answer the following questions:

(a) Which of the two bodies has a higher velocity at time (a) t = 2 s (b) t = 4 s?

(b) Which of the two bodies has (a) constant velocity (b) increasing velocity?

(c) At what time is the velocity of the two bodies same?

(d) What are the velocities of A and B at time t = 1 s?

(e) What is the change in the velocity of body B in an interval of 2 s?

Q6. The graph given alongside shows how the speed of a car changes with time.

(i) What is the initial speed of the car?

(ii) What is the maximum speed attained by the car?

(iii) Which part of the graph shows zero acceleration?

(iv)Which part of the graph shows varying retardation?

(v) Find the distance travelled in first 8 hours.

Q7. Study the velocity-time graph and calculate.

(a) The acceleration from A to B

(b) The acceleration from B to C

(c) The distance covered in the region ABE

(d) The average velocity from C to D

(e) The distance covered in the region BCFE

Q8. An insect moves along a circular path of radius 10 cm with a constant speed. It takes 1

min to move from a point on the path to the diametrically opposite point.

Find

(i) the distance covered

(ii) the speed

(iii) the displacement

(iv) the average velocity.

Q9. The following table gives the data about motion of a car.

Time (h) 11:00 11:30 12:00 12:30 1:00

Distance (km) 0 30 30 65 100

Plot the graph.

(i) Find the speed of the car between 12:00 hours and 12:30 hours.

(ii) What is the average speed of the car?

(iii) Is the car’s motion an example of uniform motion? Justify.

Q10. The velocity-time graph of a particle of mass 50 g moving in a definite direction is

shown in the following figure. Answer the questions based on this figure.

(a) What is the velocity of the particle at point ‘A’?

(b) Find the momentum of the particle at time t = 4 s.

(c) What does the slope of a graph represent?

(d) Calculate the distance travelled in 4 seconds.

CHEMISTRY WORK SHEET Q1. Define the following ---

a) Kinetic energy b) Diffusion c) Compressibility d) Density e) Latent heat of

vaporization

Q2. Differentiate between the following-

a)Mass & Weight b) Melting & Boiling point c)Evaporation & Vaporization(boiling)

d) Solids & Gases e) Sublimation & fusion.

Q3. Explain why?

a) The smell of hot sizzling food reaches you several metres away, but to get the

smell from cold food you have to go close.

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

c) A gas exerts pressure on the walls of the container.

d) A wooden table should be called a solid.

e) We can easily move our hand in air but to do the same through a solid block of wood

we need a karate expert.

f) For any substance, temperature remains constant during the change of state?

g) We see water droplets on the outer surface of a glass containing ice-cold water.

h) A desert cooler cool better on a hot dry day.

i) The water kept in an earthen pot (matka) becomes cool during summer.

j) Our palm feel cold when we put some acetone or petrol or perfume on it.

k) Water as ice has a cooling effect, whereas water as steam may cause severe burns.

Q4. Which condition out of the following will increase the evaporation of water?

(a) Increase in temperature of water (b) Decrease in temperature of water

(c) Less exposed surface area of water (d) Adding common salt to water

Q5. In which of the following conditions, the distance between the molecules of hydrogen

gas would increase?

(i) Increasing pressure on hydrogen contained in a closed container

(ii) Some hydrogen gas leaking out of the container

(iii) Increasing the volume of the container of hydrogen gas

(iv) Adding more hydrogen gas to the container without increasing the volume

of the container

(a) (i) and (iii) (b) (i) and (iv) (c) (ii) and (iii) (d) (ii) and (iv)

Q6. It is a hot summer day, Priyanshi and Ali are wearing cotton and nylon clothes

respectively. Who do you think would be more comfortable and why?

Q7. (a) Convert 574 K to the Celsius scale.

(b) What will be the state of water at: (i) 108° C (ii) 275 K

(c) Give reason-why water at room temperature is a liquid?

Q8. (a) Define diffusion. Explain the rate of order of diffusion in solids, liquids and gases.

(b) State the effect of temperature on diffusion. 5

Q9. (a) List any two properties that liquids have in common with gases.

(b) Give two reasons to justify that an iron almirah is a solid at room temperature.

(c) What happens to the heat energy which is supplied to the solid once it starts melting? 5

Q10. (a) State one similarity and one difference between evaporation and boiling.

(b) Account for the following:

(i) We wear cotton clothes in summer.

(ii) A wet handkerchief is placed on the forehead of a person suffering from high fever.

(iii) Wet clothes dry slowly during rainy season.

BIOLOGY WORK SHEET Q1. Grass looks green, papaya appears yellow. Which cell organelle is responsible for this?

Q2. Where are chromosomes located? What are they composed of? What is chromatin

material and how does it change just before the cell divides?

Q3. What does DNA molecule contain? Name the functional segment of DNA. In which form

is the DNA present in a cell when the cell is not dividing?

Q4. Differentiate between diffusion and osmosis.

Q5. Name:

(a) An organelle which has its own genetic material

(b) An organelle rich in digestive enzymes

(c) Nucleic acid present in nucleus of cell.

Q6. What will happen if we place a boiled potato in a hypotonic solution and why?

Q7. Given below is a diagrammatic sketch of electron microscopic view of an animal cell :

(a) Label the parts indicated by lines as 1 to 10.

(b) Give two reasons to support that it is an animal cell.

(c) How many mitochondria are shown in the diagram?

Q8. Given below is a diagrammatic sketch of a certain generalised cell.

(a) Name the parts numbered as 1 to 8.

(b) Is it a plant cell or an animal cell? Give two reasons in support of your answer.

(c) Give the functions of parts marked as 1, 6 and 8.

Q9. Describe the structure of nucleus.

Q.10 What will happen if we put an animal cell or a plant cell into a solution of sugar in

water?

*****************************

Mgps/Holidays HW/IX/Soc Sc./2021-22

PROJECT WORK 10 Marks

1. Every student has to compulsorily undertake one project on Disaster

Management.

Number of pages 10 -15

A4 size sheets

Use of graphs, maps, newspaper clippings , bar graphs etc.

Label all diagrams or pictures/images

Cover page-- collage with title of project . Student name, class section, year

Page 1-- index

Page 2 preface

Page 3 acknowledgement

Content

Conclusion

Bibliography

Evaluation report

The distribution of marks over different aspects relating to project work is as

follows:

A content accuracy, originality and analysis 4

B presentation and creativity 4

C Viva Voce 2

PLEASE LEARN THE CHAPTERS TAUGHT SO FAR…

Mgps/Holidays HW/IX/IT/2021-22

Answer the following questions in your IT register.

Q1. Define IT and ITes.

Q2. Expand:

a) WBT b) GIS c) GIC d) CAD e) CAM f) MRI

g) CAT h) EEG i) ECG j) LMS k) NGO

Q3. Differentiate between:

a. MNC and ISPs

b. ECG and Cardiac Screening machine

Q4. BPO industry is doing exceptionally well in India because of the advantages it

offers. Explain three advantages.

Q5. Draw or paste any 5 pictures to illustrate applications of IT in different fields.

Q6. Diagrammatically show Communication Styles (Verbal, Non-Verbal, and

Written & Visual).

Mgps/Holidays HW/IX/AI/2021-22

Answer the following questions in your AI register.

Q1. Draw or paste relevant pictures to represent applications of AI from your daily

life. (Any 5). Also write how they are helpful or making your life comfortable for

you.

Q2. Draw or paste pictures of examples of AI domains (Data Science, Computer

vision & NLP.) (Two images for each.) Also write one line of explanation or use

for each.

Q3. Write about any two concerns related to AI.

Enjoy your Holidays

#Stay home # Stay safe