9th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 9

9th Standard

    Reg.No. :
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Science

Time : 00:20:00 Hrs
Total Marks : 20

    Part A

    20 x 1 = 20
  1. Distance between Chennai and Kanyakumari can be found in

    (a)

    Kilometres

    (b)

    Metres

    (c)

    Centimetres

    (d)

    Millimetres

  2. The force responsible for drying of clothes in a washing machine is

    (a)

    Centripetal force

    (b)

    Centrifugal force

    (c)

    Gravitational force

    (d)

    Electro static force

  3. A spherical mirror which has reflecting curved inward surface is ____________________mirror

    (a)

    concave

    (b)

    convex

    (c)

    plano concave

    (d)

    plano convex

  4. Difference in ________________is the principle used in fractional distillation

    (a)

    solubility

    (b)

    melting point

    (c)

    boiling point

    (d)

    adsorption

  5. Evaporation takes place at the______of a liquid.

    (a)

    middle

    (b)

    surface

    (c)

    side

    (d)

    bottom

  6. Von Helmont conducted his experiment in. the year_______________.

    (a)

    1684

    (b)

    1468

    (c)

    1864

    (d)

    1648.

  7. Which is not a feature of chordates

    (a)

    Green glands

    (b)

    Sweat glands

    (c)

    Sebaceous gland

    (d)

    Mammary gland

  8. Which among the following organism has water vascular system in its body?

    (a)

    Sponge

    (b)

    Hydra

    (c)

    Fish

    (d)

    Star fish

  9. Proteins are made of ____________ .

    (a)

    Ascorbic acid

    (b)

    Amino acid

    (c)

    Citric acid

    (d)

    Folic acid

  10. The part of the AC generator that passes the current from the armature coil to the external circuit is

    (a)

    field magnet

    (b)

    split rings

    (c)

    slip rings

    (d)

    brushes

  11. At the  centre of a magnet, the magnetism is____________

    (a)

    zero

    (b)

    same as the poles

    (c)

    maximum

    (d)

    minimum

  12. Chlorenchyma is known to develop in the

    (a)

    cytoplasm of chlorella

    (b)

    mycelium of a green mould such as aspergillus

    (c)

    spore capsule of moss

    (d)

    pollen tube of pinus

  13. The____________ epithelium forms a selective permeable membrane surface.

    (a)

    Ciliated

    (b)

    Squamous

    (c)

    Cuboidal

    (d)

    Glandular

  14. Unit of thrust is _____________.

    (a)

    Newton

    (b)

    Pascal

    (c)

    cm3

    (d)

    km

  15. Which of the following sound is not the cause of noise pollution?

    (a)

    Loud speaker

    (b)

    Horn of vehicle

    (c)

    Explosion

    (d)

    Television

  16. Which of the following units is used to measure distance between the stars?

    (a)

    km

    (b)

    m

    (c)

    light year

    (d)

    fm

  17. Which of the following plastic items are banned by the Government of Tamil Nadu as of 1st January 2019?

    (a)

    Plastic sheets

    (b)

    Plastic tea cups

    (c)

    Plastic water packets

    (d)

    All the above

  18. Which of the foliowing methods is suitable for preventing iron frying pan from rusting?

    (a)

    Applying grease

    (b)

    Applying paint

    (c)

    Applying coating of zinc

    (d)

    All the above

  19. The amount of CO2 present in the atmospheric air is _______________.

    (a)

    0.318%

    (b)

    0.383%

    (c)

    21%

    (d)

    78%

  20. Flagella arranged along the sides of the bacteria _____________.

    (a)

    Peritrichous

    (b)

    Monotrichous

    (c)

    Lophotrichous

    (d)

    Amphitrichous

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