HOLIDAY HOMEWORK

SUB-ENGLISH CLASS- X

1. Write a report on 10 days news report (paste important pictures mentioning dates)

2. Write the Tense Chart along with examples.

3. Write notes on Reported Speech( Rules for changing direct speech to indirect speech).

4. Write notes on Clauses and its types with various examples.

5. Write a letter to the editor highlighting various ways of sanitising oneself and the

surrounding to combat the pandemic covid-19.

�ी�ावकाश गृह काय�

क ा 10

राम-ल�ण-परशुराम संवाद, नेता जी का च�ा पाठ के ��ो�र िलखो ।

शहर से गाँव की ओर,महामारी:एक अिभशाप, लाक(ऑ की मा&ा)बंदी

िबजली की कटौती के कारण उ+, सम-ा को बताते .ए संपादक को प&

िलख/,च0र&-�माण-प& के िलए �ाचाय2 को प& िलख/ पव2तीय �देशो ंका

प0र3मण कराने के िलए िम& को ध5वाद प& िलख/।रस की प0रभाषा एवं

उदाहरण का िच& बनाकर प0रयोजना काय2 कर/ ।

हेतु अवकाशीय गृह काय�

वग� दशम्

१.पढाये गये पाठ (शमुषी)से तीनो ंअ�ाय के ��ो�र एवं अ!ास पु"#का मे

िलखना।

२. )ाकरण भाग-स",,समास ,वा-,एवं �.य जो पढाया गया है उनके काय�

सोदाहरण बनाना।

३.अनुवादाथ� िदये गये अ!ासो ंको बनाना तथा श56प-

धातु6प को 8रण करना और िलखना।

HOLIDAY ASSIGNMENT FOR CLASS X

Very Short Answer Type Questions

1. Name the physical quantity whose unit is JC-1.

2. What is the direction of electrons in current?

3. What is measured by voltmeter?

4. What is the direction of magnetic field lines inside and outside of a bar

magnet?

5. When a magnetic needle is brought near a current carrying conductor, it

defects. Why?

6. Inside the solenoid, the magnetic field is uniform or non-uniform?

7. Find the equivalent resistance between A and B in the given figure.

(A) 4 ohm (B) 3 ohm

(C) 2 ohm (D) 1 ohm

Short Answer Type Questions

1. Why does a compass needle deflect when brought near a bar magnet?

2. State two properties of magnetic line of force.

3. Magnetic field inside the solenoid is uniform or non-uniform?

4. Draw the following symbols:

i)Battery ii)Open Key

iii)Resistor of resistance R iv)Bulb

5. State three factors on which magnetic field produced by a current

carrying conductor?

6. Calculate the resistance of an electric bulb which allows a 10 A

current when connected to a 220 V power source.

7. Two metallic wires A and B are connected in series. The wire A has

length l and radius r, while wire B has length 2l and radius 2r. Find the

ratio of total resistance of series combination and resistance of wire A, if

both the wires are of the same material.

8. What are essential precautions to be taken while using electricity?

9. What are electric generators or dynamos? What is their principle?

10. What is the function of an earth wire? Why is it necessary to earth

metallic casing of electric appliances?

11. We know that a current-carrying conductor (a rod) placed in a

magnetic field experiences a force due to which the conductor moves.

How do we think the rod displaces if:

(a) the current in the rod is increased

(b) a strong horse-shoe is inserted

(c) the length of the rod is increased.

12. Find the current flowing through the cell in the given electronic

circuit:

Long Answer type questions

1. (a) Explain why there are two separate circuits-one for high power

rating appliances and other for low power rating appliances.

(b) A domestic circuit has 5A fuse. How many bulbs of rating 100W,

220V can be safely used in this circuit? Justify

2. Why does a magnetic compass needle pointing north and south in the

absence of a nearby magnet gets deflected when a bar magnet or a

current-carrying loop is brought near it. Describe some salient features

of magnetic lines of field.

3. (i) Define electric resistance of a conductor.

(ii) a wire of length l and resistance R is stretched so that its length is

doubled and the area of cross-section is halved. How will its:

(a) Resistance change?

(b) Resistivity change?

4. How does a solenoid behave like a magnet? Can you determine the

north and south poles of a current-carrying solenoid with the help of a

bar magnet? Explain.

5. Two wires A and B are of equal length, different cross-sectional areas

and made of same material.

(i) (a) Name the property which is same for both the wires.

(b) Name the property which is different for both the wires.

(ii) If the resistance of wire A is four times the resistance of wire B,

calculate:

(a) The ratio of the cross-sectional areas of the wires, and

(b) The ratio of the radii of the wires.

6. A coil of insulated copper wire is connected to a galvanometer. What

will happen if a bar magnet is:

(i) pushed into the coil,

(ii) pulled away from the coil,

(iii) stayed stationary with respect of the coil.

DAV KAPILDEV PUBLIC SCHOOL, KADRU, RANCHI

HOLIDAY HOMEWORK

CLASS-X

CHEMISTRY

Q1. What is a chemical equation? Why do we need to balance a chemical equation?

Q2. A student heated about 2g of lead nitrate in a test tube and observed that reddish brown gas X was evolved.

(a) Identify the gas X formed.

(b) Give balanced equation of the reaction that has occurred.

(c) Identify the type of reaction

Q3. Anil took some lead nitrate solution in a test tube and then he added some potassium iodide solution in it.

He observed a yellow coloured insoluble substance X was formed.

(a) Identify X. What common name is given to X?

(b) Give balanced chemical equation of the reaction involved.

(c) Name the type of reaction that has occurred.

Q4. What is a redox reaction? Give an example of such reaction in which you indicate the substance which is

oxidised and the substance which is reduced.

Q5. A brown coloured element X was heated strongly in air for a long time. A black coloured substance Y

was formed. When this compound Y was treated with hydrogen gas it gave back X.

(a) Identify X and Y.

(b) Give balanced chemical equation of the two reactions involved.

(c) Identify the type of reaction taken place during conversion of Y into X.

Q6. You are provided with three test tubes containing acidic solution, basic solution and distilled water and

red litmus paper Explain the way by which you will identify the nature of the three solutions.

Q7. What treatment will you give to the soil if it has become acidic in nature?

Q8. Why does HCl and nitric acid conduct electricity in their aqueous solution while the solutions of alcohol

and glucose do not?

Q9. Why respiration is considered as exothermic reaction?

Q10. Why is combination reaction considered to be opposite to that of decomposition reaction? Give two

examples of each.

Q11. During dilution of an acid why it is recommended that acid should be added to water and not water to

acid?

Q12. A metal M is used for galvanisation of iron is found in nature as sulphide and carbonate ores. Identify the

metal M and explain the method of how this metal is obtained from these two ores.

Q13. Give reasons for the following:-

(a) Sulphide and carbonate ores are converted into oxide before reduction.

(b) Metals like sodium, potassium and lithium are stored under oil.

(c) Metals like gold, platinum and silver are used for making jewellery.

(d) Metals are unable to displace hydrogen from nitric acid.

(e) Aluminium is a reactive metal but it is used for making utensils.

(f) Hydrogen is not a typical metal but it has been placed in the reactivity series of metal.

(g) Tarnished copper vessels are often cleaned using lemon or tamarind juice.

Q14. Which gas is formed when metal carbonates and metal hydrogen carbonates are treated with dilute acids?

How will you identify this gas?

SUMMER HOLIDAY HOMEWORK (2020-21)

CLASS- X SUBJECT – SCIENCE (BIOLOGY)

Q1. What is the role of saliva in the process of digestion?

Q2. What do the gastric glands secrete and how do these help in digestion?

Q3. Why is blood circulation in human heart called double circulation?

Q4. How does aerobic respiration differ from anaerobic respiration?

Q5. Why is the rate of breathing faster in aquatic organisms than terrestrial organisms?

Q6. What do you mean emulsification of fats? Write its significance.

Q7. How does transpiration help in upward movement of water from roots to leaves?

Q8. Differentiate between artery and veins.

Q9. A) Draw a diagram of Human Alimentary canal and label on it:- Gall bladder, Liver and Pancreas

B) State the role of liver and pancreas

C) Name the organ which perform following functions in humans:-

Absorption of digested food.

Absorption of water.

Q10. A) Draw a sectional view of the human heart and label on it:- Aorta, Right ventricle and Pulmonary

veins.

B) State the functions of the following:-

RBC

Lymph

Holiday Homework

Class X

(History/Civics)

1. Learn the notes of the Chapter Power sharing

2. Do the exercise question answer of the Chapter Federalism

3. Do the Exercise question answer of the Chapter Nationalism In India

4. Learn the notes of the Chapter Development

5. Do the Exercise Question Answer of the Chapter Sectors of the Indian Economy

Economics.

1. Write and remember the q/a of the first two chapters.

Geography.

1.Write and remember the q/a from taught chapters. (Two chapters)

DAV KAPILDEV PUBLIC SCHOOL

KADRU,RANCHI

Summer Holiday Home work

Class-X

Q1. What is Internet?

Q2. Write the difference between World Wide Web and Internet.

Q3. Define the following terms:-

a) Web Site b) Web Server c) Web Client d) Web Browsers

e)Web Pages f) Web Portal

Q4.What are Blogs? Write about the various types of blogs with examples.

(As given in class notes)

Q5.What are Newsgroups?

Q6. What is the difference between :-

a) web address and and e-mail address.

b) Uploading and Down loading Filesfrom a remote site.

Q7.What are Protocols? Write about :-

a) Internet protocols: TCP/IP,SMTP,POP3,HTTP,HTTPS

b) File Transfer Protocols: SSH,SFTP,FTP,SCP

Q8. What do you understand by Search Engines? Explain .

9. Write about the following web services:-

a) Chatting and types of chatting

b) email and video conferencing c) e-learning d) e-banking

e) e-shopping f) e-reservation g) e-governance h)e-groups

i)Social Networking.

Q10.Wrte about the various generations of mobile.

Q11.Explain the difference between SMS and MMs.

Q12.What is HTML?

Q13. What are tags and attributes? Write about the types of tags with examples?

Q14.Write Html codes to generate the following output on screen.

[ The color of the content is green and the matter is-

Content of the web page.

For example:-

HTML Popularly known as Hypertext markup language & is used to create

electronic documents

(called pages) that are displayed on the World Wide Web.

Each page contains a series of connections to other pages called hyperlinks.

It is written in the form of HTML Elements consisting of tags enclosed in

angular

brackets (like <html>). Browsers do not display the HTML tags and scripts,

but use them to interpret the content of the page.]