CLASS-6 GEOGRAPHY CHAPTER-6 MAJOR LANDFORM ON THE EARTH

 EVENTS CONVENT HIGH SCHOOL

05/01/2022      CLASS- 6   SESSION 2021-22
SUBJECT :SOCIAL SCIENCE 

CHAPTER-6
MAJOR LANDFORM ON THE EARTH

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I. Choose the correct option to complete the sentences given below:

(i) It is the mountain range of South America.
(a) The Himalayas              (b) The Alps
(c)The Andes                      (d) The Rockies.

(ii)    Mt. Kilimanjaro is in
(a) Asia                                                      (b)      Africa
(c) South America                                    (d)     North America.

(iii) Which one sport is not popular in the mountains?
(a) Paragliding                                          (b)      Skiing
(c) Hang gliding                                       (d)     Football.

(iv) The Hundru falls is in
(a) Chhotanagpur                                         (b) Calcutta
(c) Ranchi                                                      (d) Chhattisgarh.

(v) The world’s highest plateau is the
(a) Deccan plateau                                        (b) Tibet plateau
(c) Chhotanagpur plateau                             (d) East African plateau.

Answer:  (i)—(c), (ii)-(b), (iii)-(d), (iv)-(a), (v)-(b).

II. Fill in the Blanks
Fill in the blanks with appropriate words to complete each sentence:

1. Many of the mining areas in the world are located in…………………………..  areas.
2. The climate of mountains is …………………..
3. Mountains vary in their ………………..  and shape.
4. The Ural mountains in ……………..  have rounded features and low elevation.
5. Volcanic mountains are formed due to ……………………  activities.
6. The ………….  and terraces are ideal for crop cultivation.
7. …………  in the Pacific Ocean is an undersea mountain.

Answer:

1. plateau
2. harsh
3. heights
4. Russia
5. volcanic
6. river basins
7. Mauna Kea (Hawaii)

III.State whether these sentences are true (T) or false (F).

1. A rich variety of flora and fauna is found in the mountains.
2. The Rope Bridge is in Arunachal Pradesh.
3. Plateaus are vast stretches of flat land.
4. Plains are very useful because they are rich in mineral deposits.
5. As we go higher, the climate becomes hotter.
6. Mt. Fujiyama in Japan is an example of volcanic mountains.
7. It is difficult to carry on construction work in plains.

Answer:

1. True
2. True
3. False
4. False
5. False
6. True
7. False.

IV.Match the items in column A correctly with those given in column B.

Very Short Answer Type Questions

1. What is internal process? [V. Imp.]
Answer: It is a type of continuous movement within the earth that lead to the upliftment and sinking of the earth’s surface at several places.

2. What is external process?
Answer:  It is the continuous wearing down and rebuilding of the land surface.

3. What is called, erosion?
Answer:  The wearing away of the earth’s surface is called erosion.

4. What happens when you go higher?
Answer:  The Climate becomes colder.

5. Give examples of young fold mountains.
Answer:  The Himalayan Mountains and the Alps.

Short Answer Type Questions

1. Write a few features of mountains.
Answer:

1. Mountains are natural elevations of the earth’s surface.
2. They are higher than the surrounding area.
3. Some of them are even higher than the clouds.
4. The climate of mountains is harsh, which makes them less suitable for human habitation.
5. Mountains have steep slopes. Hence, farming is quite difficult here.

2. What are block mountains?
Answer: Block mountains are created when large areas are broken and displaced vertically. The uplifted blocks are known as horsts and the lowered blocks are known as graben. Examples: The Rhine valley and the Vosges mountain in Europe.

3. How are plateaus useful for man?
Answer: Plateaus are very useful for man because they have rich mineral deposits. Many of the mining areas in the world are located in the plateau regions. For example, the African plateau is famous for gold and diamond mining. The Chhotanagpur plateau in India has huge reserves of iron, coal and manganese. In the plateau regions, one can find several waterfalls. Many plateaus have scenic spots which attract tourist on large scale.

4. What are the features of plateaus?   [Imp.]
Answer: 1.Plateaus are elevated flat lands. It is a flat topped table land standing above the surrounding area.
2. Plateaus have one or more sides with steep slopes.
3. Their height often varies from few hundred metres to several thousand metres.
4. Plateaus may be young or old. The Deccan plateau in India is one of the oldest plateaus.
5. The Tibet plateau is the highest plateau in the world.
6. Plateaus are storehouse of minerals like gold, diamond, iron, coal, etc.

5. What are the features of plains? [V. Imp.]
Answer: 1. Plains are vast stretches of flat land.
2. Some plains are extremely level. Others may be slightly rolling and undulating.
3. Plains are usually fertile regions. They are suitable for cultivation.
4. They are usually thickly populated regions.
5. It is easy to build houses, roads etc. in plains.

CLASS-9 SOCIAL SCIENCE EXTRA QUESTIONS

  EVENTS CONVENT HIGH SCHOOL

21/12/2021      CLASS- 9   SESSION 2021-22
SUBJECT : social SCIENCE  

CHAPTER-9 
EXTRA QUESTIONS 

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Nazims and The Rise of Hitler Class 9 Extra Questions One word.

Question 1.
The Great Depression was a period of _______ .
Answer:
Economic crisis

Question 2.
What is the German Parliament known as ?
Answer:
The German Parliament is known as the Reichstag.

Question 3.
A camp where people were isolated and detained without due process of law, referred to as _______ .
Answer:
Concentration camp

Question 4.
Which Article of the Weimar Constitution gave the President the powers to impose emergency, suspend civil rights and rule by decree ?
Answer:
Article 48

Question 5.
Who offered the chancellorship to Hitler on 30 January 1933 ?
Answer:
President Hindenburg

Question 6.
People of Weimar Republic lost confidence in the democratic _______ .
Answer:
Parliamentary system

Question 7.
The Nazi Party had become largest party by _______ .
Answer:
1932

Question 8.
The Tripartite Pact was signed between Germany, Japan and _______ .
Answer:
Italy

Question 9.
Nazi propaganda projected _______ .
Answer:
Hitler as a messiah

Question 10.
Nazi youth groups for children below 14 years of age were called _______ .
Answer:
Jungvolk

Drainage Class 9 Extra Questions Extra Questions One word.

Question 1.
The area drained by a single river system is called a _______ .
Answer:
Drainage

Question 2.
The world’s largest drainage basin is of the river _______ .
Answer:
Amazon

Question 3.
The largest delta in the world is _______ .
Answer:
Sunderban delta

Question 4.
An area through which a river and its tributaries flow is called _______ .
Answer:
Basin

Question 5.
What is the total length of the Indus river?
Answer:
The total length of the Indus river is 2900 km.

Question 6.
Which is the largest tributary of the Ganga?
Answer:
Yamuna

Question 7.
Most of the Himalayan rivers are _______ .
Answer:
Perennial

Question 8.
A river along with its tributaries may be called
Answer:
River system

Question 9.
The Brahmaputra rises in _______ .
Answer:
Tibet

Question 10.
Name any one freshwater lake of India.
Answer:
Wular lake.

People as Resource Class 9 Extra Questions One word.

Question 1.
When there is investment made in the form of education, training and medical care, the population becomes _______ .
Answer:
Human capital

Question 2. Greater knowledge with the help of improved technology can rapidly improve the production of land resources. One big example of this in India is _______ .
Answer:
Green Revolution

Question 3.
India’s large population can be used as a great asset, like other resources. It can be treated as a _______ .
Answer:
Human resource

Question 4.
Activities like agriculture, forestry, animal husbandry, fishing, poultry farming and mining are part of _______ .
Answer:
Primary sector

Question 5.
Quarrying and manufacturing is included in the _______ .
Answer:
Secondary sector

Question 6.
What do you mean by ‘death rate’ ?
Answer:
Death rate is the number of people per 1,000 who die during a particular period of time.

Question 7.
The activities that result in the production of goods and services and add value to the national income are called _______ .
Answer:
Economic activities

Question 8.
Economic activities are basically of two types _______ .
Answer:
Market activities and non-market activities

Question 9.
Activities which include production of goods or services, including government service and are performed for pay or profit, are called _______ .
Answer:
Market activities.

Question 10.
Self-consumption is _______ .
Answer:
Non-market activities.

Working of Institutions Class 9 Extra Questions One word.

Question 1.
The President of India is the highest formal authority in the _______ .
Answer:
State

Question 2.
Prime Minister is the one who actually exercises all governmental powers and he is the head of the _______ .
Answer:
Government

Question 3.
Who exercises more powers in money matters?
Answer:
The Lok Sabha

Question 4.
On August 13, 1990, the Government of India issued an office memorandum for 27% reservation for socially and educationally Backward classes in _______ .
Answer:
Civil posts or services under Government of India

Question 5.
An institution where disputes between citizens and the government of India are finally settled, is _______ .
Answer:
The Supreme Court

Question 6.
In India, a national assembly of elected representatives is called _______ .
Answer:
Parliament

Question 7.
An assembly of elected representatives at the state level is called _______ .
Answer:
Legislative Assembly or Legislature

Question 8.
The President of India is a part of the Parliament, although he/she is not a _______ .
Answer:
Member of either House

Question 9.
Our constitution gives the Rajya Sabha some special powers over :
Answer:
The states

Question 10.
In a democratic country like India there are two types of executives. They are _______ .
Answer:
Political Executive and Permanent Executive

Forest society and Colonialism Class 9 Extra Questions Very Short Answer Type Questions

Question 1.
Which new trade was created due to the introduction of new forest laws ?
Answer:
Collecting latex from wild rubber trees.

Question 2.
Name the communities living in Bastar.
Answer:
Maria and Muria Gonds, Dhurwas, Bhatras and Halbas.

Question 3.
Who was Dietrich Brandis ?
Answer:
Dietrich Brandis was a German forest expert, whom the colonial government invited for advice and made him the first Inspector General of forests in India.

Question 4.
The forest management in Java was under the ________ .
Answer:
Dutch

Question 5.
After the Forest Act was enacted in 1865, ________ .
Answer:
It was amended twic

Question 6.
Who were ‘Kalangs’ of Java ?
Answer:
Skilled forest cutters and shifting cultivators

Question 7.
What are wooden planks lay across railway tracks to hold these tracks in a position called ?
Answer:
Sleepers

Question 8.
Why did the government decide to ban shifting cultivation ?
Answer:
Because when a forest was burnt, there was the danger of destroying valuable timber.

Question 9.
Which type of trees were preferred by the forest department ?
Answer:
The trees those are suitable for building ships and railways.

Question 10.
Indian Forest Service was set up in the year ________ .
Answer:
1864

CLASS-9 SUBJECT SCIENCE CHAPTER-11 WORK POWER AND ENERGY

 EVENTS CONVENT HIGH SCHOOL

16/12/2021      CLASS- 9   SESSION 2021-22
SUBJECT :SCIENCE 

CHAPTER-11
WORK POWER AND ENERGY

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Question 1.
When a body falls freely towards the earth, then its total energy
(a) increases
(b) decreases
(c) remains constant
(d) first increases and then decreases

Answer

Answer: (c) remains constant

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Question 2.
A car is accelerated on a levelled road and attains a velocity 4 times of its initial velocity. In this process the potential energy of the car
(a) does not change
(b) becomes twice to that of initial
(c) becomes 4 times that of initial
(d) becomes 16 times that of initial

Answer

Answer: (a) does not change

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Question 3.
In case of negative work the angle between the force and displacement is (NCERT Exemplar)
(a) 0°
(b) 45°
(c) 90°
(d) 180°

Answer

Answer: (d) 180°

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Kinetic Energy Calculator is a handy tool that solves the kinetic energy problems easily & quickly.

Question 4.
An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are lo m above the ground, they have the same.
(a) acceleration
(b) momenta
(c) potential energy
(d) kinetic energy

Answer

Answer: (a) acceleration

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Question 5.
A girl is carrying a school bag of 3 kg mass on her back and moves 200 m on a levelled road. The work done against the gravitational force will be (g = 10 ms²)
(a) 6 × 10³ J
(b) 6 J
(c) 0.6 J
(d) zero

Answer

Answer: (d) zero

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Question 6.
Which one of the following is not the unit of energy?
(a) joule
(b) newton metre
(c) kilowatt
(d) kilowatt hour

Answer

Answer: (c) kilowatt

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Question 7.
The work done on an object does not depend upon the
(a) displacement
(b) force applied
(c) angle between force and displacement
(d) initial velocity of the object

Answer

Answer: (d) initial velocity of the object

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Question 8.
Water stored in a dam possesses
(a) no energy
(b) electrical energy
(c) kinetic energy
(d) potential energy

Answer

Answer: (d) potential energy

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Question 9.
A body is falling from a height h. After it has fallen a height h2, it will possess
(a) only potential energy
(b) only kinetic energy
(c) half potential and half kinetic energy
(d) more kinetic and less potential energy

Answer

Answer: (c) half potential and half kinetic energy

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Question 10.
The number of joules contained in 1 kWh is
(a) 36 × 105 J
(b) 3.6 × 107 J
(c) 36 × 108 J
(d) 3.7 × 107 J

Answer

Answer: (a) 36 × 105 J

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Fill in the blanks

1. Work done is product of ………….. and distance moved the direction of the force.

Answer

Answer: force

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2. If the angle between force and displacement is …………. then work done is said to be zero.

Answer

Answer: 90°

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3. Energy of a body is defined as the capacity or …………. to do work.

Answer

Answer: ability

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4. Mechanical energy includes ………….. and ……………

Answer

Answer: kinetic energy, potential energy

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5. Energy can neither be ………….. nor ………….. it can only transformed from one form to another.

Answer

Answer: created, destroyed

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6. ………….. is defined as the rate of doing work.

Answer

Answer: Power

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7. Commercial unit of energy is ………………

Answer

Answer: kilowatt hour

Page 149
Q1. When do we say that work is done?
Work is said to be done when a force causes displacement of an object in the direction of applied force.
Q2. Write an expression for the work done when a force is acting on an object in the direction of its displacement.
Work done = Force x Displacement
Q3. Define 1J of work.
When a force of IN causes a displacement of 1m, in its own direction the work done is said to be one joule.
Q4. A pair of bullocks exerts a force of 140 N on a plough. The field being ploughed is 15 m long. How much work is done in ploughing the length of the field?
Work done = Force x Displacement = 140 x 15 = 2,100 J

Page 156

Q1. What is power?
Power is defined as the rate of doing work
Q2. Define 1 watt of power.
When a work of 1 joule is done in 1 s, the power is said to be one watt.
Q3. A lamp consumes 1000 J of electrical energy in 10 s. What is its power?
Given W = 1000J, t = 10s, P =?
We know, P = W/t = 1000/10 = 100W
Q4. Define average power.
When a machine or person does different amounts of work or uses energy in different intervals of time, the ratio between the total work or energy consumed to the total time is average power.

Q5. A mass of 10 kg is at a point A on a table. It is moved to a point B. If the line joining A and B is horizontal, what is the work done on the object by the gravitational force? Explain your answer.
The work done is zero. This is because the gravitational force and displacement are perpendicular to each other.

Q6. The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?
It does not violate the law Of conservation of energy. Whatever, is the decrease in PE due to loss of height, same is the increase in the KE due to increase in velocity of the body.

Q7. What are the various energy transformations that occur when you are riding a bicycle?
The chemical energy of the food changes into heat and then to muscular energy. On paddling, the muscular energy changes into mechanical energy

Q8. Does the transfer of energy take place when you push a huge rock with all your might and fail to move it? Where is the energy you spend going?
Energy transfer does not take place as no displacement takes place in the direction of applied force. The energy spent is used to overcome inertia of rest of the rock.

Match the following columns

Column A	Column B
(a) SI unit of power	(i) 1/2 mv2
(b) Kinetic energy	(ii) The change of one form of energy into another
(c) Potential energy	(iii) watt
(d) SI unit of work	(iv) If applied force on an object and displacement is in opposite direction.
(e) Negative work	(v) Energy possessed by a body due to its position or configuration.
(f) Power	(vi) Joule
(g) Expression of kinetic energy	(vii) Energy possessed by a body due to its motion.
(h) Transformation of energy	(viii) Rate of doing work

Answer

Column A	Column B
(a) SI unit of power	(iii) watt
(b) Kinetic energy	(vii) Energy possessed by a body due to its motion.
(c) Potential energy	(v) Energy possessed by a body due to its position or configuration.
(d) SI unit of work	(vi) Joule
(e) Negative work	(iv) If applied force on an object and displacement is in opposite direction.
(f) Power	(viii) Rate of doing work
(g) Expression of kinetic energy	(i) 1/2 mv2
(h) Transformation of energy	(ii) The change of one form of energy into another