8th Standard Science English Medium Free Online Test Book Back 1 Mark Questions Part - One

8th Standard

    Reg.No. :
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Science

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

    Part A

    10 x 1 = 10
  1. Luminous intensity is the intensity of

    (a)

    Laser light

    (b)

    UV light

    (c)

    visible light

    (d)

    IR light

  2. The value of the atmospheric pressure at sea level is

    (a)

    76 cm of mercury column

    (b)

    760 cm of mercury column

    (c)

    176 cm of mercury column

    (d)

    7.6 cm of mercury column

  3. The distance from the pole to the focus is called

    (a)

    Pole length

    (b)

    focal length

    (c)

    principal axis

    (d)

    None of the above

  4. Symbol of Mercury is

    (a)

    Ag

    (b)

    Hg

    (c)

    Au

    (d)

    Pb

  5. The burning of matchstick is an example for chemical reaction based on______

    (a)

    Contact

    (b)

    electricity

    (c)

    light

    (d)

    catalyst

  6. The plant body of algae is called as ______.

    (a)

    stem

    (b)

    thallus

    (c)

    leaf

    (d)

    root

  7. Soil erosion is prevented by____________plants.

    (a)

    Algae

    (b)

    Fungi

    (c)

    Bryophytes

    (d)

    Pteridophytes

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

    (a)

    Speaker

    (b)

    Keyboard

    (c)

    Monitor

    (d)

    Printer

  9. If you apply equal amount of heat to a solid, liquid and gas individually, which of the following will have more expansion?

    (a)

    Solid

    (b)

    Liquid

    (c)

    Gas

    (d)

    All of them

  10. Aerated water contains

    (a)

    air

    (b)

    oxygen

    (c)

    carbon dioxide

    (d)

    nitrogen

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