www.kseeb.kar.nic.in Karnataka Science Model Question Paper : SSLC / 10th Std / Tenth

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Document Described : Science Question Paper, Karnataka Question Paper

Model question paper - I
PART - I
PHYSICS & CHEMISTRY

For Each multiple choice question four alternatives are given. Out of these alternatives choose the correct answer and write the answer in the space provided
1. Due to heavy traffic near the school the department of traffic police wants to install automatic traffic lights. This can be done by using the Principle of 1 x 10 = 10
a) Raman effect b) Radiography c)Holography d) Photoelectric effect
2. Water is to be sterilized for drinking purpose without using any chemicals this can be done by using
a) u v rays b) visible light c) short wave length radio waves d) long wave length Radio waves

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English Medium Science Model Question Paper Link :
http://kseeb.kar.nic.in/model_papers...e_eng_ver1.pdf

Kannada Medium Science Model Question Paper Link :
http://kseeb.kar.nic.in/model_papers...an%20_ver1.pdf

Urdu Medium Science Model Question Paper Link :
http://kseeb.kar.nic.in/model_papers/Science_urdu.pdf

3. In a heat engine the linear motion of the Piston is converted into rotation by the component
a) spark plug b) Carburettor c) Crank shaft d) Fuel injection pump
4. An engineer wants to design an engine to convert 800KJ of heat into 840KJ of useful mechanical work.
The correct statement related to the above engine is that it
a) is less efficient b) is more efficient c) cannot be designed d) is 100% efficient
5. An astrophysics Scientist observes that galaxy 'A' is more red shifted than galaxy 'B'. The conclusion that can be drawn from this is that
a) the velocity of 'A' is more than 'B' b) the velocity of 'B' is more than 'A'
c) both the galaxies have equal velocity d) both the galaxies are at rest.
6. In an nuclear reactor, the number of cadmium rods used are less than the required number. Then one of the possibilities is
a) the reactor may explode b) the chain reaction stops
c) number of fissions decrease d) the number of neutrons decrease
7. If emission test is required for an L.P.G run auto rickshaw, the availability of oxygen in moles for combustion of one mole of butane is
a) less than 5 b) between 8.5 and 9.5
c) between 9.5 and 10.5 d) more than 10.5
8. In a soap industry the chemist forgets to add sodium chloride during the manufacture of soap, the possible effect is
a) soap cannot be easily separated b) chemical composition of soap changes
c) soap will not get required colour d) the solubility of soap increases.
9. Borosilicate glass is used to make school laboratory equipments because it
a) is highly transparent b) with stands sudden changes in the temperature and transparent
c) has high refractive index d) absorbs radiations
10. Using sodium hydroxide as one of the raw materials it is possible to prepare
a) soaps and detergents b) cement and ceramics
c) glass and plastics d) cement and glass

Fill in the blanks with suitable terms
11. A p-n junction allows current to pass in one direction this is called_____ 1 x 3 = 3
12. Rader gun works on the principle of______
13. The device which converts light energy into electrical energy is______

14. Match the following :
A B
1. Natural Gas L.P.G
2. Butane explosives
3. Benzene to detect leakage of L.P.G
4. Toluene emission test
Carbon black
Perfumes
Exhaust gas
15. A cyclist going round a curve leans towards the centre of the curve. Give reason 1 x 6 = 6
16. What is a centrifugal governer?
17. What is the colour of the star Betelgeuse?
18. Mention the purpose of using a plane glass sheet in a solar cooker?
19. How does the pressure cooker help in saving energy?
20. Write the balnced chemical equation of the reaction between sodium carbonate and calcium chloride
21. Write any two factors on which the induced EMF depends 2 x 9 = 18
22. Draw a neat sketch of D.C. Dynamo
23. What is electromagnetic spectrum?

a) Name the electromagnetic radiations which has
1. the lowest frequency and
2. lowest wavelength
24. Draw a neat sketch to show the exhaust stroke of an external combustion engine
a) Iron articles are electroplated with chromium
b) Calcium silicate is a protective layer for the molten iron in the blast furnace
c) Copper is not used to prepare hydrogen in the laboratory
d) Ore of copper is not concentrated by hydraulic washing
26. what is the role of magnesium and dilute hydrochloric acid in the preparation of silicon
27. write the steps involved in recycling plastics.
28. Name two types of hardness in water. On what principle can hardness of water be removed?
29. Draw a circuit symbol of each of the following
a) Forward biased diode b) transistors of n-p-n

30. State the universal law of gravitation . prepare it by a mathematical equation 3 x 4 = 12
31. What is impure spectrum? Why is Raman scattering called incoherent and Rayleigh scattering called
coherent scattering. On what basis did Raman give satisfactory explanation of incoherent scattering?
32. If the present mass of a radio active element is 3.125 gm and its half life period is 8 days. What was its
initial mass before 40 days.
33. Draw a neat diagram of the device that converts nuclear energy into electrical energy.
34. State the law of conservation of momentum. “The escape velocity on the earth is 4 x 3 = 12
11.2km/s” what does it mean? How are orbital and escape velocities related to
one another? At what height geostationary statellite is launched.
35 How does a protostar attain the steady state? What is a neutron star?
36. Draw a neat diagram of each of the following
1. Blast furnace used to extract iron 2. Electrolytic refining of copper.

BIOLOGY
I. FOUR ALTERNATIVES ARE GIVEN TO EACH STATEMENT CHOOSE THE CORRECT ANSWER
AND WRITE IN THE SPACE PROVIDED
1. One of the following statements is true. 1 x 5 = 5
a) Ragi plant has parallel venation and cotyledon raises above the soil during germination.
b) Ragi plant has parallel venation and cotyledon remains below the soil during germination.
c) Ragi plant has reticulate venation and cotyledon remains below the soil during germination.
d) Ragi plant has reticulate venation and cotyledon raise above the soil during germination.
2. A person is advised not to donate blood after being tested for ELISA, because he is infected by
a) HIV B) HBV c) HSV d) SIV
3. After being pricked by a thorn, a boy withdraws his leg immediately. The center of this action is
a) Cerebrum b) Cerebellum c) Spinalcord d) Hypothallamus
4. Vegetative reproduction found in multicellular alage is a natural process of
5. Blood report of a 40 year old person indicates high glucose level. He may be at risk of getting.
a) Glaucoma b) Cataract c) Astigmatism d) Retinopathy

6. MATCH PART 'A' WITH PART 'B' : 1 x 4 = 4
A B
1. Areolar tissue a) Provides frame work to Spleen
2. Ligament b) attaches muscles to bones
3. Adipose tissue c) digests toxic substances
4. Tendones d) provides frame work to entire body
e) attaches one bone to another
f) avoids friction in joints
g) acts as a shock absorber

ANSWER THE FOLLOWING QUESTIONS IN A WORD OR A SENTENCE :
7. What is biotechnology ? 1 x 4 = 4
8. Which important characteristic feature of selaginella depicts that it is highly evolved than Riccia ?
9. Ramya experiences numbness in herlimbs due to accumulation of watery fluid, name the disease and adulterant that has caused it.
10. Why is goiter called an endemic disease ?

ANSWER THE FOLLOWING IN 2 OR 3 SENTERNCES EACH :
11. How are ear and throat connected ? What is its advantage ? 2 x 6 = 12
12. Raju resides in an area where not much of lichens are found. List any four health hazards he may be suffering from
13. Explain the structure of HIV in 20of 3 sentences.
14. Mention one function of the following.
a) Sclereids b) Companion cells
15. How can vanaspathi in ghee be detected ?
16. A student has uprooted a weed plant in the school garden. The student infers that it is a dicot plant. Support the inference.

ANSWER THE FOLLOWING :
17. How does electrochemical fixation take place during nitrogen cycle ? 3 x 2 = 6
18. Draw a diagram to show external features of fish and label any two parts
19. Draw a diagram of vertical section of human brain and label any four parts. 4 x 1 = 4

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