8th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 2

8th Standard

    Reg.No. :
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Science

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

    Part A

    20 x 1 = 20
  1. SI unit of temperature is

    (a)

    celsius

    (b)

    fahrenheit

    (c)

    kelvin

    (d)

    ampere

  2. _______ can be used as memory or storage element in the computers.

    (a)

    Condutors

    (b)

    Insulators

    (c)

    Supercondutors

    (d)

    Semiconductors

  3. Unit of pressure is

    (a)

    pascal

    (b)

    N m–2

    (c)

    poise

    (d)

    Both (a) & (b)

  4. Focal length is equal to half of the

    (a)

    centre of curvature

    (b)

    axis

    (c)

    radius of curvature

    (d)

    None of the above

  5. An imaginary line perpendicular to the reflecting surface is called

    (a)

    imaginary line

    (b)

    curved line

    (c)

    Perpendicular line

    (d)

    normal

  6. Which one of the element name not derived from planet?

    (a)

    Plutonium

    (b)

    Neptunium

    (c)

    Uranium

    (d)

    Mercury

  7. Burning of paper is a______ change.

    (a)

    Physical

    (b)

    chemical

    (c)

    physical & chemical

    (d)

    neutral

  8. Based on shape, the bacteria are classified into _______ types.

    (a)

    2

    (b)

    3

    (c)

    4

    (d)

    5

  9. Soil erosion is prevented by____________plants.

    (a)

    Algae

    (b)

    Fungi

    (c)

    Bryophytes

    (d)

    Pteridophytes

  10. ______________ cells are specialised cells that can be transformed into any kind of cells.

    (a)

    Nerve

    (b)

    Stem

    (c)

    Heart

    (d)

    Bone

  11. Fifth generation computer has ___________ Intelligence.

    (a)

    Transistors

    (b)

    Integrated Circuits

    (c)

    Microprocessor

    (d)

    Artificial Intelligence

  12. 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

  13. An electroscope has been charged by induction with the help of charged glassrod. The charge on the electroscope is

    (a)

    negative

    (b)

    positive

    (c)

    both positive and negative

    (d)

    None of the above

  14. Solvay process is a method to manufacture

    (a)

    lime water

    (b)

    aerated water

    (c)

    distilled water

    (d)

    sodium carbonate

  15. In all atoms of an element

    (a)

    the atomic and the mass number are same.

    (b)

    the mass number is same and the atomic number is different

    (c)

    the atomic number is same and the mass number is different

    (d)

    both atomic and mass numbers may vary.

  16. Cockroach moves with the help of its

    (a)

    leg

    (b)

    bone

    (c)

    muscular foot

    (d)

    whole body

  17. The sperm is produced by ____________

    (a)

    penis

    (b)

    ovary

    (c)

    uterus

    (d)

    testes

  18. Tux Math software helps in learning the ________

    (a)

    painting

    (b)

    arithmetic

    (c)

    programming

    (d)

    graphics

  19. Find the odd one out.

    (a)

    Harmonium

    (b)

    Flute

    (c)

    Nadaswaram

    (d)

    Violin

  20. The south pole of a bar magnet and the north pole of a U-shaped magnet will __________.

    (a)

    attract each other

    (b)

    repel each other

    (c)

    neither attract nor repel each other

    (d)

    None of the above

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