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

9th Standard

    Reg.No. :
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Science

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

    Part A

    20 x 1 = 20
  1. Unit of acceleration is

    (a)

    ms-1

    (b)

    ms-2

    (c)

    ms

    (d)

    ms2

  2. The focal length of a concave mirror is 5cm. Its radius of curvature is

    (a)

    5 cm

    (b)

    10 cm

    (c)

    2.5 cm

  3. The constituents that form a mixture are also called

    (a)

    Elements

    (b)

    Compounds

    (c)

    Alloys

    (d)

    Components

  4. The bending of root of a plant in response to water is called _________ 

    (a)

    thigmonasty

    (b)

    phototropism

    (c)

    hydrotropism

    (d)

    photonasty

  5. Which one of the following pairs is not a poikilothermic animal

    (a)

    Fishes and Amphibians

    (b)

    Amphibians and Aves

    (c)

    Aves and Mammals

    (d)

    Reptiles and mammals

  6. _________ belongs to the generation IV of the computer

    (a)

    Microprocessor

    (b)

    Artificial intelligence

    (c)

    Transistor

    (d)

    Vaccum Tubes

  7. Electroplating is an example for

    (a)

    heating effect

    (b)

    chemical effect

    (c)

    flowing effect

    (d)

    magnetic effect

  8. Elements in the modern periodic table are arranged in__________ groups and __________ periods.

    (a)

    7,18

    (b)

    18,7

    (c)

    17,8

    (d)

    8, 17

  9. ____________compounds have high melting and boiling points.

    (a)

    Covalent

    (b)

    Coordinate

    (c)

    Ionic

    (d)

    Coordinate

  10. The tissue composed of living thin walled polyhedral cell is

    (a)

    Parenchyma

    (b)

    Collenchyma

    (c)

    Sclerenchyma

    (d)

    None of above

  11. Stomach of man mainly digests

    (a)

    carbohydrates

    (b)

    proteins

    (c)

    fat

    (d)

    sucrose

  12. Which one of the following is an input device?

    (a)

    Speaker

    (b)

    Mouse

    (c)

    Monitor

    (d)

    Printer

  13. A musical instrument is producing continuous note. This note cannot be heard by a person having a normal hearing range. This note must then be passing through

    (a)

    wax

    (b)

    vacuum

    (c)

    water

    (d)

    empty vessel

  14. Ceres is a _______.

    (a)

    Meteor

    (b)

    Star

    (c)

    Planet

    (d)

    Astroid

  15. The age of a dead animal can be determined by using an isotope of ____________

    (a)

    carbon

    (b)

    iodine

    (c)

    phosphorous

    (d)

    oxygen

  16. Which of the following is not an adaptation of hydrophytes?

    (a)

    poorly developed root system

    (b)

    reduced plant body

    (c)

    water storing parenchymatous tissues

    (d)

    finely divided submerged leaves

  17. Drones in the honey bee colony are formed from

    (a)

    unfertilized egg

    (b)

    fertilized egg

    (c)

    parthenogenesis

    (d)

    both b and c

  18. Syphilis is caused by

    (a)

    Treponema pallidum

    (b)

    Leptospira

    (c)

    Pasteurella

    (d)

    Vibrio cholerae

  19. The primary organ infected during tuberculosis is

    (a)

    bone marrow

    (b)

    intestine

    (c)

    spleen

    (d)

    lungs

  20. Find out the Paid and Proprietary software from the given list

    (a)

    Windows

    (b)

    MAC OS

    (c)

    Adobe Photoshop

    (d)

    All the above

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