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10th Science - Term 1 Model Question Paper Sep-20 , 2019

10th Science - Term 1 Model Question Paper

Term 1 Model Question Paper

10th Standard

    Reg.No. :
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Science

Time : 02:00:00 Hrs
Total Marks : 60
    6 x 1 = 6

  1. In which of the following sport the turning of effect of force used

    (a)

    swimming

    (b)

    tennis

    (c)

    cycling

    (d)

    hockey

  2. If a substance is heated or cooled, the change in mass of that substance is

    (a)

    positive

    (b)

    negative

    (c)

    zero

    (d)

    none of the above

  3. SI unit of resistance is

    (a)

    mho

    (b)

    joule

    (c)

    ohm

    (d)

    ohm meter

  4. Unit of radioactivity is _____________

    (a)

    roentgen

    (b)

    curie

    (c)

    becquerel

    (d)

    all the above

  5. Mass of 1 mole of Nitrogen atom is

    (a)

    28 amu

    (b)

    14 amu

    (c)

    28 g

    (d)

    14 g

  6. The basis of modern periodic law is__________.

    (a)

    atomic number

    (b)

    atomic mass

    (c)

    isotopic mass

    (d)

    number of neutrons

    7. 6 x 1 = 6

  7. The chief ore of Aluminium is ________.

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    Bauxite

  8. 100 % pure ethanol is called ____________

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    absolute alcohol

  9. The part of human brain which acts as relay center is _______

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    thalamus

  10. DNA consists of two ____________ chains.

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    polynucleotide

  11. Blood cancer is called____________

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    Leukaemia

  12. ______________ is a biosphere reserve in Tamilnadu

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    Nilgiris

    13. 5 x 1 = 5

  13. Newton’s II law

    14. (1)

    Path way of light

  14. Pupil

    15. (2)

    Potassium stearate

  15. Ultrasonic

    16. (3)

    Heating in the absence of air

  16. Calcination

    17. (4)

    22 kHz

  17. Soap

    18. (5)

    Law of force
    3 x 1 = 3

  18. Expand the following abbreviations - IDDM

  19. Expand the following abbreviations - BMI

  20. Expand the following abbreviations - NIDDM

    21. 7 x 2 = 14

  21. State Newton’s second law.

  22. State Boyle’s law

  23. Name three animals, which can hear ultrasonic vibrations.

  24. Define: Atomicity

  25. What does CNS stand for?

  26. What is the study of fossils called?

  27. What is Stage?

    28. 3 x 4 = 12

  28. State Ohm’s law.

  29. N2 + 3 H2 → 2 NH3
    (The atomic mass of nitrogen is 14, and that of hydrogen is 1)
    1 mole of nitrogen (_______g) +
    3 moles of hydrogen ( _________ g) →
    2 moles of ammonia ( _________ g)

  30. Write the differences between endocrine and exocrine gland.

    31. 2 x 7 = 14

  31. a) What are the advantages of LED TV over the normal TV?
    b) List the merits of LED bulb.

  32. Enumerate the functions of blood.

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