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

9th Standard

    Reg.No. :
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Science

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

    Part A

    20 x 1 = 20
  1. A body moving with an initial velocity 5ms-1 and accelerates at 2ms-2. Its velocity after 10s is

    (a)

    20ms-1

    (b)

    25ms-1

    (c)

    5ms-1

    (d)

    22.55ms-1

  2. The velocity of a freely falling body ______

    (a)

    decreases

    (b)

    zero

    (c)

    increases

    (d)

    equal to one

  3. For a simple distillation process we need to have

    (a)

    an evaporating dish

    (b)

    a separating funnel

    (c)

    a filter with filter paper

    (d)

    a Liebig condenser

  4. Energy is neither given out nor absorbed in the preparation of_____

    (a)

    element

    (b)

    compound

    (c)

    mixture

    (d)

    solvent

  5. Botanical name of common dandelian is________________.

    (a)

    Ipomoea alba

    (b)

    Mimosa pudica

    (c)

    Helianthus Annuus

    (d)

    Taraxacum officinale

  6. Photosynthesis occurs in most plants during the________________.

    (a)

    Summer season

    (b)

    Winter season

    (c)

    Night time

    (d)

    Day time

  7. Hermaphrodite organisms are

    (a)

    Hydra, Tape worm, Earthworm, Amphioxus

    (b)

    Hydra, Tape worm, Earthworm, Ascidian

    (c)

    Hydra, Tape worm, Earthworm, Balanoglossus

    (d)

    Hydra, Tape worm, Ascaris, Earthworm

  8. Phillippine goby is found in___________.

    (a)

    marine water

    (b)

    brackish water

    (c)

    salt water

    (d)

    fresh water

  9. Which of the following is true?

    (a)

    1 J = 412 calorie

    (b)

    1 J = 0.24 calorie

    (c)

    1 calorie = 4.2 J

    (d)

    Both band c

  10. Covalent bond is formed by_________

    (a)

    transfer of electrons

    (b)

    sharing of electrons

    (c)

    sharing a pair of electrons

    (d)

    transfer of electrons

  11. _______________is an example of a covalent compound having high melting point

    (a)

    Magnesium oxide

    (b)

    Silicon carbide

    (c)

    Ammonia

    (d)

    All the above

  12. In a certain type of cell division the diploid number of chromosome is reduced to half. This kind of division occurs in

    (a)

    testis

    (b)

    ovary

    (c)

    both ovary and testis

    (d)

    all body cells

  13. ___________is an essentional part of the computer

    (a)

    Keyboard

    (b)

    CPU

    (c)

    Mouse

    (d)

    Wi-Fi

  14. The velocities of sound waves in four media P, O, Q, R and S are 18,00 km/h, 900 km/h, 0 km/h, and 1200 km/h respectively. Which could be a liquid medium?

    (a)

    R

    (b)

    Q

    (c)

    P

    (d)

    S

  15. The phenomenon of echo of sound waves is due to _____________.

    (a)

    Reflection

    (b)

    Interference

    (c)

    Diffraction

    (d)

    All of the above

  16. Which of the following is prepared by heating CaO and coke?

    (a)

    CaC2

    (b)

    CaCO3

    (c)

    CO2

    (d)

    CO

  17. Which of the following is one of the strategies to conserve water?

    (a)

    Water recycling

    (b)

    Increasing the number of bore wells

    (c)

    Using large overhead water tanks

    (d)

    Watering the plants using hose

  18. Nowadays organic farming and organic products are very popular, which of the following is the reason for people to prefer this kind of products.

    (a)

    Organic food may have higher nutritional value than conventional food

    (b)

    Consuming organic food may also reduce exposure to artificial chemicals

    (c)

    it reduces air pollution

    (d)

    All the above

  19. Severity of disease symptom depends upon

    (a)

    number of microbes

    (b)

    target organ

    (c)

    both a and b

    (d)

    none of these.

  20. Carrier of malaria causing protozoa

    (a)

    Cockroach

    (b)

    Housefly

    (c)

    Butterfly

    (d)

    FemaleAnopheles mosquito

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