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DELHI PUBLIC SCHOOL BIKANER

PRACTICE PAPERS FOR UNIT TEST - 1 CLASS VIII SESSION 2017-18

SUBJECT: ENGLISH

UNIT-1: HUMAN BONDS

Sec 1: My Big Brother

1. Whom do you like the most- the narrator or his brother. Give reason and the character sketch.

2. What was the motive of the brother behind his preaching and scolding to the narrator?

3. Do you think the narrator loved his brother. Give reason

4. Identify whether the clause is dependent / independent:

i. Victor fell off his bicycle.

ii. If she had not worn her beautiful pink dress.

iii. Tara must `ve fallen.

5. Complete the sentences by adding appropriate subordinators.

i. Maya studies so that_______________.

ii. We can judge our success by__________________.

iii. I remember_____________________.

Sec-2: A Most Important Person

1. Who is your favourite character. Give reason.

2. Why was Miss Lucy disappointed to know that the little boy had a mother?

3. `She is a handsome woman yet,` said judge Hennry.

i. Who is the woman spoken about?

ii. Whom is the judge addressing?

iii. How does the judge know the woman?

Sec-3: Mending Wall

1. What does a wall signify.

2. Write down the the poetic devices used in the poem.

3. Is the poet happy with the idea of building walls. Why?

4. Write the summary of the poem.

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SUBJECT: HINDI

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SUBJECT: MATHS

Rational Numbers

Q1 : Using appropriate properties find:

(i)

(ii)

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Q2 : Write the additive inverse of each of the following:

(i) (ii) (iii) (iv) (v)

Q3 : Verify that - ( - x) = x for.

(i) (ii)

Q4 : Find the multiplicative inverse of the following.

(i) (ii) (iii)

(iv) (v) (vi) – 1

Q5 : Name the property under multiplication used in each of the following:

(i)

(ii)

(ii)

Q6 : Multiply by the reciprocal of .

Q7 : Tell what property allows you to compute .

Q8 : Is the multiplicative inverse of ? Why or why not?

Q9 : Is 0.3 the multiplicative inverse of ? Why or why not? Q10 : Write: (i) The rational number that does not have a reciprocal.

(ii) The rational numbers that are equal to their reciprocals.

(iii) The rational number that is equal to its negative.

Exponents

1. Find the value of 5-3

* 1/53.

2. Simplify 25 / 2

-6.

5

3. Express 4-3

as a power with base 2.

4. Simplify and write the answer in exponential form: (25 / 2

8)5 * 2

-5.

5. Find the value of m so that (-3)m+1

* (-3)5 = (-3)

7.

6. Find the value of (2/3)-2

.

7. Simplify: (5/8)-7

* (8/5)-5

.

8. Simplify (-4)-10 * (-4)5

9. Simplify (1 / 32)3.

10. Evaluate: (5-1 * 82) / ( 2-3 * 10-1).

11. Find the value of 'm' for which 6m / 6-3 = 65?

12. Evaluate [(1/2)-1 - (1/3)-1]-1.

13. Simplify: (-3)5 *(5/3)5.

14. Compare 7 * 10-6 and 129 * 10-7.

15. The size of a plant cell is 0.00001275 m. express it in standard form.

16. If the thickness of a paper sheet is 0.0016 cm, find the thickness of 100 sheets. Express

the answer in standard form.

Square and Square Roots 1. Find the square root of 144 by the method of repeated subtraction.

2. Find the smallest number by which 1800 must be multiplied so that it becomes a perfect square.

Also find the square root of the perfect square so obtained.

3. Is 2352 a perfect square? if not, find the smallest number by which 2352 must be multiplied so

that the product is a perfect square. Find the square root of new number.

4. The area of a square field is 8281 m2. Find the length of its side.

5. Find the square root of

6. Simplify:

7. A perfect square number can never have the digits ... at the units place.

8. Find

9. . Find the value of (23)2 using column method.

10. Find the value

11. Write a Pythagorean triplet whose smaller member is 6.

12. What is the sum of first n odd natural numbers?

13. A number ending in an odd number of zeros is never a

14. Express 49 as the sum of seven odd numbers.

15. Without adding, find the sum.

16. (1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17)

17. Find the value of

18. Write the unit digit of square of 799.

SUBJECT: SCIENCE

Force and Pressure

Name the following:

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1. A push or pull that can change the position and form of an object ………….. .

2. Forces that are equal in magnitude but opposite in direction …………….. .

3. The force that stops a ball rolling on the ground …………. .

4. A force that results from the action of gravity on matter …………….. .

5. The force of attraction between all objects in the universe ……………. .

6. The area around a magnet where its effect can be felt ……………… .

7. The force exerted by a charged body on a charged or uncharged body ……………. .

8. The envelope of air surrounding the earth …………….. .

9. The net force acting on a body ………………….. .

10. The force per unit area exerted by an atmospheric column …………….. .

Think and answer the following questions:

1. Explain why tanks and caterpillar tractors do not get struck on loose ground, through they

are very heavy.

2. A needle can easily pierce a cloth or a cardboard while it is tough to drive a blunt nail into

the wall. Why?

3. When you stand straight a weighing machine without moving, your correct weight is

recorded. As soon as you bend down, the scales show less. Why?

4. Why is it difficult to write in a moving train?

5. A pilot flying at an altitude of two kilometers reported catching a bullet with his hands. Can

you explain how?

Friction:

Name the types of friction in each case:

1. Pushing a lawn mower …………………………………………………………………

2. A bird flying in the sky ………………………………………………………………..

3. Pulling a luggage bag on wheels ……………………………………………………….

4. A boy cycling on a straight road ………………………………………………………

5. A boy running on a curved running track ……………………………………………..

6. Pushing a chair on the floor ……………………………………………………………

7. A brick lying on the ground ……………………………………………………………

8. A fish swimming in water ……………………………………………………………..

9. Rubbing a matchstick against a matchbox …………………………………………….

10. A car moving along a smooth road …………………… …………………………….

Think and answer the following questions.

1. Why is it difficult to move a cycle with brakes on?

2. When a man sharpens his knife. Which properties of friction are in use?

3. It is easier to pull a lawn mower than to push it. Explain.

4. Why should we take smaller steps while walking on ice?

5. Why do cyclist bend forward while racing?

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SUBJECT: SOCIAL SCIENCE

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SUBJECT: SANSKRIT

SUBJECT: COMPUTER SCIENCE

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Chapter - 1 ( Introduction to Computers: Networking)

I. Choose the correct answer:

1. Networks have built-in ________________ programs.

a) programming b) Hardware c) Software d) Security

2. __________ are the wires that connect computers and resources on a network.

a) NIC b) Connectors c) Cables d) Wi-Fi

3. A ________________network is a network connection that is established for a brief period of time and then gets disconnected.

a) temporary b) permanent c) nodes d) topology

4. A _______ is a computer or any other device on a network that communicates with other devices.

a) Hub b) Connector c) Node d) None of these

II. Fill in the blanks:

1. In a ___________ topology, the nodes are connected in a closed loop so that each device is

connected to two other devices, one on either side.

2. In a ___________ topology, all the nodes are connected to a central cable called bus.

3. The way in which the nodes of a network are linked together is called ________________.

4. A __________ network protocol defines rules for communication between network devices.

III. Answer the following questions:

Q1. Explain any two benefits of networking.

Q2. Write some advantages of Star Topology.

Q3. Write some disadvantages of Ring topology.

Q4. Differentiate between TCP and HTTP.

Q5. What is the role of Computer Network Architect in networking?

SUBJECT: FRENCH

Q1. Rearrange the letters (a) Hierac (b) Nigaasm (c) Fumrpa (d) Elbat (e) Peaudra

Q2. Choose the odd one out (a) Paris/marseille/lyon/l’euro (b) Chanel/Christian dior/le louvre/luis vuitton (c) Le Beaujolais/le Bourgogne/le brie (d) Le brie/le gruyere le Bordeaux/le roqufort

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a. La belle image b. Les cahiers rouges c. Un jeune garcon d. Un homme sportif

Q4. Write the opposites a. Ancien b. Sympathique c. Mince d. Jeune e. Triste f. Forte g. Basse

Q5.give the plural form of the sentences (a) Un petit garcon chante un belle chanson (b) L’amie de Manuel regarde l’animal (c) La femme aime la nouvelle robe (d) La jeune fille aime danser (e) L’enfant finit l’excercice

Q6. Find the mistake and rewrite the sentence (a) Les fleurs sont jolis. (b) Mon francais ami est sympathique (c) La femme est gentil (d) Ils ont un bleu cahier (e) Mes images sont beau

Q7. Describe your classmate in 50-60 words