10th Standard Science English Medium Free Online Test Creative 1 Mark Questions with Answer Key Part - 1

10th Standard

    Reg.No. :
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Science

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

    Part A

    20 x 1 = 20
  1. The act of cleaning a carpet by heating it with a stick is an example for inertia of

    (a)

    motion

    (b)

    direction

    (c)

    rest

    (d)

    momentum

  2. At the surface of earth an object falling freely experiences an acceleration of

    (a)

    9.4 ms-2

    (b)

    9.1 ms-1

    (c)

    9.8 ms-2

    (d)

    9.6 ms-2

  3. Rainbow formation is due to _____ water droplets.

    (a)

    Ionisation

    (b)

    absorption of sunlight

    (c)

    reflection and refraction of sunlight

    (d)

    reflection of sunlight

  4. An object is placed at 12 cm from a convex lens whose focal length is 10 cm. The image must

    (a)

    Virtual and enlarged

    (b)

    real and reduced in size

    (c)

    virtual and reduced size

    (d)

    real and enlarged size

  5. Objective of telescope is of

    (a)

    Short focal length & short aperture

    (b)

    Short focal length & large aperture

    (c)

    Large focal length & large aperture

    (d)

    Large focal length & short aperture

  6. The resistance of a conductor is inversely proportional to its _______.

    (a)

    Volt

    (b)

    Length

    (c)

    Area

    (d)

    None ofthe above

  7. Infrasound can be heard or produced by

    (a)

    dog

    (b)

    bat

    (c)

    rhinoceros

    (d)

    human beings

  8. Complete the reaction: 90Th234 91Pa234+ ?

    (a)

    2He4

    (b)

    -1e0

    (c)

    1e0

    (d)

    1n0

  9. Order of temperature of fusion reaction is ________kelvin.

    (a)

    1017

    (b)

    107

    (c)

    1010

    (d)

    103

  10. Which of the following contains the largest number of molecules?

    (a)

    0.2 mol H2

    (b)

    8.0 g H2

    (c)

    17 g of H2O

    (d)

    6.0 g of CO2

  11. Blister copper contains _________

    (a)

    50% pure copper

    (b)

    99% pure copper and 1% impurities

    (c)

    98% pure copper and 2% impurities

    (d)

    75% pure copper and 25% impurities

  12. An example for a solution containing liquid solute in gas solvent is ____________

    (a)

    soda water

    (b)

    cloud

    (c)

    cork

    (d)

    smoke

  13. When a double displacement reaction takes place, one of the products must be

    (a)

    Precipitate

    (b)

    Water

    (c)

    either (a) or (b)

    (d)

    neither (a) nor (b)

  14. Identify the product formed when ethanol reacts with sodium

    (a)

    Sodium acetate

    (b)

    Sodium ethanate

    (c)

    Sodium ethoxide

    (d)

    Sodium formate

  15. The_______ are also called polymorpho nuclear leucocytes

    (a)

    eosinophil

    (b)

    thrombocyte

    (c)

    neutrophil

    (d)

    lymphocyte

  16. ______ acts as a insulator.

    (a)

    myelin sheath(b)

    (b)

    synaptic junction

    (c)

    nodes of ranvier

    (d)

    glial cells

  17. Premature shedding is caused by ______

    (a)

    auxin

    (b)

    ethylene

    (c)

    ABA

    (d)

    gibberellin

  18. _______from anterior pituitary stimulates milk secretion

    (a)

    Oxytocin

    (b)

    Prolactin

    (c)

    Progestrone

    (d)

    Oestrogen

  19. Pusa snowball is a disease resistant variety of________.

    (a)

    cowpea

    (b)

    cauliflower

    (c)

    wheat

    (d)

    rice

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