# Web viewKeeping this in mind, our teachers have painstakingly designed interesting Projects/...

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JAIN VIDYA MANDIR SR. SEC. SCHOOL

HOLIDAYS HOMEWORK

CLASS –XI SCIENCE

Dear Parents

It is summer vacation time again, a time to relax as well as fruitfully occupy the children in various scholastic and co-scholastic areas. Keeping this in mind, our teachers have painstakingly designed interesting Projects/ Assignments for children to be completed during the summer vacation. This would encourage in- depth learning, strengthen concepts and prepare ground for improved academic output.

As Parents, kindly motivate and lend support to your children and ensure that they will complete the given work well in time and to the best of their ability. Your encouragement can actually make a huge difference to the ultimate learning outcome of these projects.

Happy Holidays!

MATHAMATICS

INFORMATICS PRACTICES

1. Make a handwritten file based on database management System (MYSQL queries at least 25).

2. Learn and practice chapter 1,11, 12, 13 in separate holiday homework notebook.

3. Read chapter- 2,3.

4. Prepare for UT. Syllabus for same (1,11,12,13)

Typography

Q 1. Learn Chapter 1 to 3 and do written practice in separate notebook.

Q 2. Make a Project in MS Word by using different features of MS Word. File should contain at least 20 Pages. Take Printout of same.

Q3. Find out 30 questions from Chapter- 6 (MS Word) of 1 and 2 marks.

(PHE)

1. Prepare an assignment on yoga

Meaning of Yoga

Element of Yoga

Importance of Yoga

ANY FOUR ASANAS,

Learn Chapter-2,5

2nd chapter- Olympic movement

5th chapter yoga

Q2. Explain the sports awards and explain about any three awards in detail.

Physics holiday homework

All the questions should be solved in classwork register only.

1. Write the dimensional formulae for the following physical quantities: (i) Gravitational constant (ii) Power (iii) Young’s Modulus (iv) Coefficient of viscosity (v) Surface tension (vi) Planck’s constant

2. By the use of dimensions, show that energy per unit volume is equal to the pressure

. 3. Taking velocity, time and force as the fundamental quantities find the dimensions of mass.

4. The density of mercury is 13.6 g/cm3 in CGS system. Find its value in SI units.

5. Find the value of 100 J on a system which has 20 cm, 250 g and half minute as fundamental units of length, mass and time.

6. Find the dimensions of a / b in the equation: F=a √x +bt2 , where F is force, x is distance and t is time. 7. Find the dimensions of the terms a, b, c in equation v=at + b / t + c.

8. Derive the following relationships using dimensions: (a) The velocity ‘of a wave along a plucked string depends on the tension ‘T’ in the string, its length ‘l’ and the mass ‘m’ of the string. (b) The terminal velocity ‘v’ of a steel sphere moving under gravity through a viscous liquid depends on the weight of the sphere ‘mg’, the coefficient of viscosity ’η’ and the radius of the sphere ‘r’.

9.The diameter of the given wire was measured eight times by a screw gauge as: 0.036 cm, 0.038 cm, 0.039 cm, 0.037 cm, 0.035 cm, 0.036 cm, 0.034 cm, 0.035 cm. Find the diameter of the wire, the absolute error and the relative error.

10. The refractive index was found to be 1.54, 1.53, 1.51, 1.50, and 1.52 in successive measurements. Calculate the refractive index of glass and the percentage error in its measurement.

11. In an experiment to determine the value the Young’s modulus of elasticity of a steel wire using the formula Y = M g l / π r2 e the percentage errors in the measurement of m, l, r and e were 2%, 1%, 2% and 1% respectively. Find the percentage error incurred in the measurement of Y.

12. The initial and final temperatures of a water bath are (21.0 ± 0.5) C and (42.5 ± 0.5) C. What is the rise in temperature of the water bath and the greatest fractional error in the determination of the rise in temperature?

13. Determine the density of a sphere if its radius r = (2.540 ± 0.005) cm and mass m = (27.5 ± 0.5) g. Take π = 3.14

14. If R1 = (5.0 ± 0.1) Ώ and R2 = (5.0 ± 0.2) Ώ. Determine (i) R = R1+R2 ( ii) R = R1R2 / (R1+R2) and the percentage error in both cases.

15. Distinguish between the terms precision and accuracy of a measurement.

16. Do all physical quantities have dimensions? If no, name three physical quantities which are dimensionless.

17. State the number of significant figures in the following: 2.000 m, 5100 kg, 0.050 cm.

18. Round off the following numbers as indicated: i) 18.35 up to 3 digits ii) 143.45 up to 4 digits iii) 18967 up to 3 digits iv) 321.135 up to 5 digits.

19. Add 7.21, 12.141 and 0.0028 and express the result to an appropriate number of significant figures.

20. The diameter of a circle is 1.06 m. Calculate the area to an appropriate number of significant figures.

MAKE ANY ONE WORKING MODEL ON APPLIED PHYSICS FROM 11TH CLASS SYLLABUS

Subject Biology

1. Answer the following questions in a separate notebook

Write important characteristics of Gymnosperms.

(b)Draw a well labeled diagram of Funaria plant showing the sporophyte and gametophyte.

(c)Elaborate the Haplontic, diplontic and haplodiplontic lifecycle with proper example.

(d)Differentiate between classes of Algae (Chlorophyceae, Rhodophyceae,Phaeophyceae )

(e)Write down about characteristics of Pteridophyta .

(f)Both Angiosperms and Gymnosperms bear seeds. Why are they classified separately?

(g)Differentiate between monocots and dicots.

(h) Describe major system of classification [Artificial,Natural,Phylogenetic,Numerical,Cytotaxonomy ,Chemotaxonomy]

(i)Draw the lifecycle of an Angiosperm. Describe Fertilization and development of seed and fruit.

(j)Describe the points which are used as a basis for classification for animal kingdom.

(k)Prepare a table differentiating between Pisces, Amphibians, Reptiles, Aves and Mammals.

(l)Prepare a list of Phylum and write down the specific feature of each Phylum on Animal kingdom.

(m)Highlight the criteria considered for five kingdom system classification .

(n)Draw a well labeled diagram of Euglena and Bacteriophage .

(o)Draw a life cycle of Mushroom .

(p) Describe briefly the four major group of protozoans .

(q)Discuss the pattern of scientists involved in virus discovery.

2. Prepare an assignment containing information about 5 algae, 5 bryophytes and five Pteridophytes those are economically important. Write their classification, their characteristics and their importance.

3. Prepare a Herbarium file containing collection of plants leaves and write down their complete information (classification and characteristics)

4. Prepare an assignment containing details of 10 pathogenic organism (Write their classification and characteristics and causal disease)( pathogens – bacteria , virus , protozoa)

5. Prepare an assignment containing detail of 5 edible fungi (classification and characteristics)

6. Prepare an assignment writing detail about Dinoflagellates , lichen and Methanogens [Write about their characteristics , specific features ]

7. Prepare an assignment giving detail of five scientist and their work in the field of taxonomy and classification

8. Prepare a slide show of various bryophytes, algae, lichen, plants (by taking their pictures) in your nearby areas .