Term 1 Model Questions

8th Standard EM

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Science

Time : 02:00:00 Hrs
Total Marks : 50
    6 x 1 = 6
  1. Which one the following system of units is the British System of unit?

    (a)

    CGS

    (b)

    MKS

    (c)

    FPS

    (d)

    SI

  2. SI unit stands for

    (a)

    International system of units

    (b)

    Integrated System of units

    (c)

    International symbol of units

    (d)

    Integrated symbol of units

  3. Unit of pressure is

    (a)

    pascal

    (b)

    N m–2

    (c)

    poise

    (d)

    Both (a) & (b)

  4. Matter is composed of

    (a)

    atoms

    (b)

    molecules

    (c)

    ions

    (d)

    all of the above

  5. Pencil lead contains

    (a)

    graphite

    (b)

    diamond

    (c)

    aluminium

    (d)

    sulphur

  6. Binominal Nomenclature was first introduced in the year of _______

    (a)

    1970

    (b)

    1975

    (c)

    1978

    (d)

    1623

  7. 4 x 1 = 4
  8. _______ is used to measure electric current.

    ()

    Ammeter

  9. The symbol of Tungsten________

    ()

    W

  10. The first true land plant is ______

    ()

    pteridophytes

  11. The size of the cells are measured in units of __________.

    ()

    Micron

  12. 5 x 1 = 5
  13. SI units are metric system of units.

    (a) True
    (b) False
  14. A body will sink if the weight of the body is greater than the buoyant force.

    (a) True
    (b) False
  15. CFC is a pollutant.

    (a) True
    (b) False
  16. Yeast is used in the large scale production of alcohol.

    (a) True
    (b) False
  17. In gymnosperms ovules are developed from the flowers.

    (a) True
    (b) False
  18. 5 x 1 = 5
  19. Plane Angle

  20. (1)

    enzymes,hormone, protein

  21. Lubricants

  22. (2)

    Making the filament of abulb

  23. Multiple reflection

  24. (3)

    Kaleidoscope

  25. Tungsten

  26. (4)

    reduce friction

  27. Amino acids

  28. (5)

    Angle formed by the intersection of two planes

    8 x 2 = 16
  29. What is the unit of mass in FPS system?

  30. What is the value of Avogadro’s number? 

  31. Calculate the pressure exerted by the foot of an elephant using the following data. Average weight of an elephant is 4000 N. Surface area of the sole of its foot is 0.1m2.

  32. The radius of curvature of a spherical mirror is 20 cm. Find its focal length.

  33. Give two examples for metalloids.

  34. Define catalysis

  35. Who discovered penicillin?

  36. What is cell differentiation?

  37. 3 x 3 = 9
  38. Define - mole.

  39. Why is a ball bearing used in a cycle hub?

  40. Define focal length?

  41. 3 x 5 = 15
  42. List out the base quantities with their units.

  43. Explain the three types of pollution.

  44. Differentiate between inhalation and exhalation.

*****************************************

Reviews & Comments about 8th Standard Science Term 1 Model Question Paper

Write your Comment