9th Standard Science English Medium Free Online Test Book Back 1 Mark Questions with Answer Key Part - 3

9th Standard

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Science

Time : 00:20:00 Hrs
Total Marks : 17

    Part A

    20 x 1 = 20
  1. A car is being driven at a speed of 20 ms-1 when brakes are applied to bring it to rest in 5 s. The decelaration produced in this case will be

    (a)

    +4 ms-2

    (b)

    ‒4 ms-2

    (c)

    ‒0.25 ms-2

    (d)

    +0.25 ms-2

  2. When the reflecting surface is curved outwards the mirror formed will be

    (a)

    concave mirror

    (b)

    convex mirror

    (c)

    plane mirror

  3. ______ is essential to perform separation by solvent extraction method.

    (a)

    Separating funnel

    (b)

    centrifuge machine

    (c)

    filter paper

    (d)

    sieve

  4. Transpiration is best defined as _________ 

    (a)

    loss of water by the plant

    (b)

    evaporation of water from the aerial surfaces from the plant

    (c)

    loss of water in the form of water vapour from the underground parts of the plant body

    (d)

    release of water from the plant into the atmosphere

  5. Find the group having only marine members

    (a)

    Mollusca

    (b)

    Porifera

    (c)

    Coelenterata

    (d)

    Echinodermata

  6. Food and Adulteration Act was enacted by Government of India in the year _______________

    (a)

    1964

    (b)

    1954

    (c)

    1950

    (d)

    1963

  7. The specific heat capacity of water is

    (a)

    4200 Jkg-1K-1

    (b)

    420 Jg-1K-1

    (c)

    0.42 Jg-1K-1

    (d)

    4.2 Jkg-1K-1

  8. The unit of magnetic flux density is

    (a)

    weber

    (b)

    weber/metre

    (c)

    weber/metre2

    (d)

    weber. metre2

  9. The element that would form anion by gaining electrons in a chemical reaction is___________

    (a)

    Potassium

    (b)

    Calcium

    (c)

    Fluorine

    (d)

    Iron

  10. The nature of the tooth paste commonly used is in nature

    (a)

    acidic

    (b)

    basic

    (c)

    neutral

    (d)

    neutral

  11. Which of the following is a complex tissue?

    (a)

    Parenchyma

    (b)

    Collenchyma

    (c)

    Xylem

    (d)

    Sclerenchyma

  12. The structural and functional unit of the kidney is__________

    (a)

    villi

    (b)

    liver

    (c)

    nephron

    (d)

    ureter

  13. Clouds float in atmosphere because of their low

    (a)

    density

    (b)

    pressure

    (c)

    velocity

    (d)

    mass

  14. The period of revolution of planet A around the Sun is 8 times that of planet B. How many times is the distance of planet A as great as that of planet B?

    (a)

    4

    (b)

    5

    (c)

    2

    (d)

    3

  15. Raagav brings his lunch every day to school in a plastic container which has resin code number 5. The container is made of

    (a)

    Polystyrene

    (b)

    PVC

    (c)

    Polypropylene

    (d)

    LDPE

  16. All the factors of biosphere which affect the ability of organisms to survive and reproduce are called as _______________.

    (a)

    biological factors

    (b)

    abiotic factors

    (c)

    biotic factors

    (d)

    physical factors

  17. Which one of the following is not an exotic breed of cow?

    (a)

    Jersey

    (b)

    Holstein-Friesan

    (c)

    Sahiwal

    (d)

    Brown Swiss

  18. Binomial name of Nilavembu is

    (a)

    Leucas aspera

    (b)

    Andrographis paniculata

    (c)

    Crotolaria juncea

    (d)

    Cassia fistula

  19. The primary organ infected during tuberculosis is

    (a)

    bone marrow

    (b)

    intestine

    (c)

    spleen

    (d)

    lungs

  20. _________is an Operating System.

    (a)

    Android

    (b)

    Chrome

    (c)

    Internet

    (d)

    Pendrive

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