Term 1 Model Question Paper

10th Standard

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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
  8. The chief ore of Aluminium is ________.

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    Bauxite

  9. 100 % pure ethanol is called ____________

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    absolute alcohol

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

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    thalamus

  11. DNA consists of two ____________ chains.

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    polynucleotide

  12. Blood cancer is called____________

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    Leukaemia

  13. ______________ is a biosphere reserve in Tamilnadu

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    Nilgiris

  14. 5 x 1 = 5
  15. Newton’s II law

  16. (1)

    Heating in the absence of air

  17. Pupil

  18. (2)

    Law of force

  19. Ultrasonic

  20. (3)

    Potassium stearate

  21. Calcination

  22. (4)

    Path way of light

  23. Soap

  24. (5)

    22 kHz

    3 x 1 = 3
  25. Expand the following abbreviations - IDDM

  26. Expand the following abbreviations - BMI

  27. Expand the following abbreviations - NIDDM

  28. 7 x 2 = 14
  29. State Newton’s second law.

  30. State Boyle’s law

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

  32. Define: Atomicity

  33. What does CNS stand for?

  34. What is the study of fossils called?

  35. What is Stage?

  36. 3 x 4 = 12
  37. State Ohm’s law.

  38. 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)

  39. Write the differences between endocrine and exocrine gland.

  40. 2 x 7 = 14
  41. a) What are the advantages of LED TV over the normal TV?
    b) List the merits of LED bulb.

  42. Enumerate the functions of blood.

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