FA2 Cycle Test-1 (2013-14)

Podar International School- CBSE,Ahmedabad

Std. VIII                                               FA2  Cycle Test-1 (2013-14)  

Date	Day	Sub	Portion
08-07-13	Mon	Hindi	पाठ शास्त्रार्थ, सभ्यता का रहस्य कविता हिमालय और हम व्याकरण संधि, उपसर्ग, प्रत्यय, समास रचना निबंध लेखन कहानी संचय नहले पे दहला प्रायश्चित का पुरस्कार
09-07-13	Tue	French/Guj/ Sansk	French:-Ln.1- Tu as l’heure? Distinction entre l’heure officiel et l’heure dans la conversation Compréhension  Ln.2 – La journée de Emilie Parle de tes repas et tes plats favoris, Les aliments français et indiens Les habitudes alimentaires des français, Q /A Pg.15 et 21,Grammaire :-Les présent des verbes Pronominaux (conjugaison),L’impératif des verbes pronominaux (+ve et-ve) Guj :- Sansk Sansk:- नव रूचिरा 1 सिद्धार्थस्य विरक्ति 2 सिंहमूषकयो: कथा   3 सुभाषितानी सृष्टि 1 वर्ण विचार: 2 कारकविभक्ति:/उपपदविभक्ति  3 लिंगनिर्धारणम  4 शब्दरूपाणि 5 चित्रधारित वर्णनम
10-07-13	Wed	Math	Chapter 1: Rational numbers, Chapter2: Linear equations in one variable, Chapter 4: Algebraic Expressions, Chapter4: Understanding shapes
11-07-13	Thu	Computer	Chap 1:- Adobe Photoshop 7.0, Chap 2:- MS Access Chap 3:- Introduction to Visual Basic(Page No – 1 to 46)
12-07-13	Fri	S.St	Hist & Civics: 1. Colonial Rule in India, 2.  Colonial Administration, 3.  Indian Constitution 4. Vision of Indian Constitution   Geo:1. Our Resources, 2. Land and Soil Resources
13-07-13	Sat	Science	Chapter: 1 Crop Production and Management, Chapter: 11 Force, friction and pressure, Chapter: 6 Combustion , Flame and fuel, Chapter: 4 Metals and Non-metals
15-07-13	Mon	English	Eng. Lit.  Prose: A Lesson in Life from a Beggar, Thanks for Your Time (from SR), Poem:  More About People (from SR), In the Bazaars of Hyderabad (from SR) English Language:- Sentences:-1. Kinds of sentences, 2. Adding correct punctuation marks, 3.  Changing into questions, 4. Constructing sentences using directions5.   Completing short dialogues 6.Affirmative and negative sentences 7. Changing sentence forms,8. onstructing questions 9. Question tags, 10. ‘Wh’ questions 11. Framing questions, Comprehension, Diary Entry, Speech Writing,  Revision of Tenses (all), Conditionals, Revision of Formal Letter (will not be tested for the FA1 exam) (2)Prefixes and Suffixes

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         Principal                                                           Academic Co-ordinator             .....2

:: 2 ::

Special Instructions:-

a.    School timings during Cycle test–I will be from 8:00 a.m. to 11:00 a.m. only.

Please make necessary arrangement to pick your ward from the school at 11:00 a.m. after the cycle test.  School transport will be available to the students coming by school bus.

b.    Duration of Computer & Third language  Paper is one hour, so that day students have to bring books for the next exam for revision during school hrs.

c.    On regular class day students have to come with books according to timetable for first 5 periods i.e. 7:55 a.m. to 11:00 a.m.

d.    Open house is on 27th July 2013 as per the schedule below and request all to strictly follow the schedule.

08.30 a.m – 09.30 a.m	09.30 a.m. – 10.30 a.m	10.30 a.m – 11.30 a.m
ROLL NO 1 - 16	ROLL NO 17 – 32	ROLL NO 33 – 48

English Language

Speech writing

When writing an speech the following points should be adhered to:

Ø begin by wishing the audience

Ø introduce yourself

Ø introduce the topic

Ø 2-3 paragraphs stating the argument and the solutions/suggestions

Ø thanking the audience

Ø word limit – 200 words

Structure of a Speech:

1) The Title

Ø brief – not more that 2-3 words

Ø catchy and effective

Ø encourage the reader to read further

2) Introduction

Ø informs the reader what the speech is about

Ø could contain facts or startling information/and anecdote – a story that illustrates a point. (should be short)

Ø summary information – explain your point of view in general terms

The body

Ø causes of the problem

Ø effects of the problem

Ø your opinions

Ø description of the event

Conclusion

Conclusion brings closure.

Ø review main points

Ø describe your feelings about the topic

Conclusion could include sentences like the following:

•      In conclusion then…

•      Finally, it can be argued that…

•      Despite the evidence to the contrary, it could be argues…

•      Quotation relevant to the topic can also be added here.

METALS & NON METALS

METALS AND NON METALS

F. ANSWER THE FOLLOWING QUESTIONS IN DETAIL.

1. Compare the physical properties of metals and non-metals.

s.no.	metals	Non-metals
1.	Metals are good conductors of heat and electricity	They are not good conductors of heat and electricity
2.	They are hard, shiny, can be beaten into sheets, drawn into wires	They are brittle, dull, cannot beaten into sheets, drawn into wires
3.	Normally they are solids at room temperature	They exist as solid and gases at room temperature.
4.	They are very strong and hard	Not as hard as metals.
5.	They produce sound	They do not produce ringing sound.

2. Why is gold used for making jewellery?

Gold has lustreand  is considered to be the most malleable metal. i.e. it can be beaten into thin sheets (malleability) to create a number of designs in bangles, chains etc.

3.  Why are electrical cables made from copper?

Because it is a good conductor of heat and electricity.

4. Metal oxides are basic oxides. Explain with an example.

When metal oxides dissolve in water, they form bases which turn red litmus blue. E.g.

           Sodium oxide dissolve in water to form sodium hydroxide.

         Sodium oxide + water                   sodium hydroxide

      Na₂O    +   H₂O --àNaOH

5.    Why is sodium metal stored under kerosene?

Sodium is one of the most reactive metal. It reacts vigorously with the oxygen present in air at room temperature to form sodium oxide. So, it is kept in kerosene.

6       & 7. Define displacement reaction with the help of an example.

Write the chemical reaction involved.

A chemical reaction in which a more reactive metal displaces a less reactive metal from its salt solution is called as displacement reaction.

e.g. when an iron nail is put in copper sulphate solution, the colour of the solution changes from blue to light green and a reddish brown coating of copper is seen on the iron nail.

It is because iron which is a more reactive metal displaces a less reactive metal copper from copper sulphate solution.

     Copper sulphate + iron --à iron sulphate + copper

             CuSO₄     + Fe   à   FeSO_{4    +}      Cu

8. What happens when a metal reacts with dilute acid? Explain with an e.g.

  Metals react with dilute acids form a salt and hydrogen gas.

 Sodium   + dil. Hydrochloric acid àsodium chloride +   Hydrogen

2Na  + 2 HClà 2NaCl  + H₂

9. Why do copper vessels develop a greenish layer when exposed to moist air?

Copper vessels develop a greenish coating of copper carbonate on exposure to air.

10. list few uses of metals and non metals.

p.no. 46 & 47

EXTRA QUESTIONS:

1.     a.Metals that are in liquid state: Mercury & Gallium

b.Soft metals :Sodium & Potassium

c.Non-metal that exists as a liquid :Bromine

d.Hardest non metal: diamond

e.Non- metals that have lustre: Graphite, diamond & iodine

f.      Metals which do not conduct heat & electricity: Lead &Tungsten

g.    Non-metal that is a good conductor of heat & electricity : graphite

h.    Metal used in thermometer: Mercury

2.    What is metal reactivity series?

  The arrangement of metals according to their reactivity is called as metal reactivity series.

Metals have been arranged in a vertical order with the most reactive metal at the top and the least reactive metal at the bottom.

3.    What do you mean by galvanization? What is its use?

Coating of iron or steel with a layer of Zinc is known as galvanization. It is used to prevent the metal from rusting.

4.    What is rusting? Mention the factors that cause rusting?

The formation of reddish brown coat on iron objects on exposure to moist air is known as rusting. Atmospheric Oxygen and moisture are the two factors that cause rusting.

5.    What is an alloy?

Alloy is the mixture of 2 or more than 2 metals

Or

Metal and a non-metal

e.g. brass is a mixture of copper & zinc

ITKT (Computer) - Cycle Test 1

Click on below link to download material

https://www.dropbox.com/sh/mhv3j73aopu0v7p/rN2y4AQq7W

Cycle Test 1 - Syllabus - Chapter 1, 2, 3

हिन्दी आरोही--सभ्यता का रहस्य

हिन्दी व्याकरण --समास

Physics : Force, Friction and Pressure

Q1: Give two examples each of situations in which you push or pull to change the state of motion of objects?

Answer:
A goal keeper saving a goal.
Hockey player flicking a ball.

Q2: What is a force?

Answer:
Force is a push or a pull acting on an object which changes or tends to change the state of the object.
Actions like pulling, pushing, lifting, kicking, opening etc. are tasks we generally do in our daily life. These actions often result in change in position of the object. We say an effort is required either to push or pull an object, this effort is called force.
The SI (International System of Units) unit of force is Newton

Q3: Give two examples of situations in which applied force causes a change in the shape of an object.

Answer:    
a. A lump of dough on a plate.  
b. A rubber band suspended from a hook.

Q4: Fill in the blanks in the following statements:

Answer:
(a) To draw water from a well we have to pull (force) at the rope.
(b) A charged body attracts an uncharged body towards it.
(c) To move a loaded trolley we have to push it.
(d) The north pole of a magnet repels the north pole of another magnet.

Q5: An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms:
          muscular, contact, non-contact, gravity, friction, shape, attraction

Answer:
(a) To stretch the bow, the archer applies a force that causes a change in its shape.
(b) The force applied by the archer to stretch the bow is an example of muscular  force.
(c) The type of force responsible for a change in the state of motion of the arrow is an example of a contact force.
(d) While the arrow moves towards its target, the forces acting on it are due to gravity and that due to friction of air.

Q6: A blacksmith hammers a hot piece of iron while making a tool. How does the force due to hammering affect the piece of iron?

Answer: The force due to hammering changes the shape of the piece of iron.

Q7: What force can do?

Answer: When a force is applied on an object, it:can move an object from rest. can change the speed of an object if it is moving. can change the direction of motion of an object. can bring about a change in the shape of an object. may or may not cause any of these or all of these effects

Q8: An inflated balloon was pressed against a wall after it has been rubbed with a piece of synthetic cloth. It was found that the balloon sticks to the wall. What force might be responsible for the attraction between the balloon and the wall?

Answer: The force which is responsible for the attraction between the ball and the wall is electrostatic force. When we rub the balloon by a synthetic cloth, it gets charged. When it is taken near the wall, it will get attracted towards the uncharged wall because of the electrostatic force which is the force exerted by a charged body on another uncharged body.

Q9: Name the forces acting on a plastic bucket containing water held above ground level in your hand. Discuss why the forces acting on the bucket do not bring a change in its state of motion.

Answer: The force acting on a plastic bucket containing water held above the ground level are :
1. Gravitational force: It is acting downwards.
2. Muscular force: It is applied by our hands to lift the bucket in upward direction.
Although these forces are acting on the bucket but no change is found in its state of motion because the forces are balancing each  other and as a result net force becomes zero.

Q10: A rocket has been fired upwards to launch a satellite in its orbit. Name the two forces acting on the rocket immediately after leaving the launching pad.

Answer: Two forces acting on the rocket immediately after leaving the launching pad are:
1. Frictional force due to air,
2. Force of gravity pulling in downward direction.

Q11: Why does hair of the hand raise when the hand is brought near to television screen once the TV is switch1d off? 

Answer: The television screen becomes electrically charged and it exerts an electrostatic force on the hair of your hand. This force is a non-contact force because, there is no contact between the screen and the hair.

Q12: Define Pressure.

Answer: The force acting per unit surface area is called pressure. The SI unit of  pressure is measured in newton/metre2, which is equal to 1 pascal (Pa).

                                      Pressure = Force /  Area 

Q13: How do fluids exert pressure?

Answer: Fluids exert pressure in all directions. Fluids exert pressure on all bodies immersed in them and also on the walls of the container that holds them.

Q14: Suppose your writing desk is tilted a little. A book kept on it starts sliding down. Show the direction of frictional force acting on it.

Answer: Frictional force acts opposite to the movement of the book i.e. upward direction.

Q15: You spill a bucket of soapy water on a marble floor accidentally. Would it make it easier or more difficult for you to walk on the floor? Why?

Answer: It would be difficult to walk on the floor. Soapy water fills the floor irregularities, thus reduces the friction considerably. Feet do not make necessary grip with the floor surface, thus increasing the chances of falling.

Q16: What are the causes of frictions?

Answer: Following are the causes of friction:

1. roughness of two surfaces in contact and interlocking of the irregularities between the surfaces. 

2. nature of surface i.e. smooth or rough 

3. shape of surface (e.g. flat or curved) 

4. impurities between surface (e.g. adding lubricant between two rough surface decrease friction) 

5. pressure of two surfaces i.e. how hard the two surfaces are pressed together.

6. mass of the body of surfaces in contact

Q17: Explain why sportsmen use shoes with spikes.

Answer: Spikes increase friction and give tighter grip with ground. It avoids slipping of sportsmen while playing or running.

Q18: Iqbal has to push a lighter box and Veena has to push a similar heavier box on the same floor. Who will have to apply a larger force and why? 

Answer: Friction is a self-adjusting force. Increase in weight will put more force on the floor surface and therefore will experience more opposite force (friction). Veena will have to apply larger force.

Q19: Give examples to show that friction is both a friend and a foe. 

Answer: Friction is a necessary evil acting both as friend and foe.

Examples of friction as friend: 

We are able to walk because of frictional forces between ground and our feet. 

We are able to write because of friction between ball point and the paper surface. 

Nails and screws stick to wall surfaces because of friction. 

Lighting a match stick is because of friction between match stick and the side surface of match box. 

Examples of friction as foe:

Wear and tear of soles of our shoes is due to friction. 

When a tyre deflates, it is difficult to move the the vehicle because of increased friction between the tyre and road surface. 

Machines gets heated up and produce noise because of friction. 

Due to friction, machines and vehicles consumes more fuel and increase maintenance cost. 

Q20: What is the relation between Force and interaction?

Answer:  Whenever there is an interaction between two objects, there is a force acting upon each of the objects. When the interaction ceases, the two objects no longer experience the force. Forces only exist as a result of an interaction.