Measurement One Mark Questions

8th Standard EM

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Science

Time : 01:00:00 Hrs
Total Marks : 20
    5 x 1 = 5
  1. Which one the following system of units is the British System of unit?

    (a)

    CGS

    (b)

    MKS

    (c)

    FPS

    (d)

    SI

  2. Luminous intensity is the intensity of

    (a)

    Laser light

    (b)

    UV light

    (c)

    visible light

    (d)

    IR light

  3. Quantities other than base quantities are called as

    (a)

    supplementary quantities

    (b)

    derived quantities

    (c)

    professional quantities

    (d)

    energy quantities

  4. __________ is the measure of the perceived power of light.

    (a)

    Luminous flux

    (b)

    Luminous power

    (c)

    Luminous Intensity

    (d)

    Both a and b

  5. Electric current (I) = ____________

    (a)

    Qt

    (b)

    t/Q

    (c)

    Q/t

    (d)

    Q/t2

  6. 5 x 1 = 5
  7. Luminous Intensity is the amount of visible light, that is emitted in unit area per unit _______.

    ()

       

  8. Quartz clock uses _______ oscillations.

    ()

    Electronic

  9. If the length of the book is 15em then the magnitude is__________

    ()

    15

  10. ___________ is used to measure each base quantities

    ()

    Standard unit

  11. The melting point of pure ice is ______

    ()

    OOC

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

    (a) True
    (b) False
  14. Temperature is a measure of total kinetic energy of the particles in a system.

    (a) True
    (b) False
  15. 1 radian = 180°/2π

    (a) True
    (b) False
  16. True value is also an observed value

    (a) True
    (b) False
  17. Precision is the process of finding the solution by means of estimation

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

  20. (1)

    Closeness to two or more measurements

  21. Plane Angle

  22. (2)

    Angle formed by the intersection of two planes

  23. Precision

  24. (3)

    Steradian

  25. Luminous intensity

  26. (4)

    Measure of hotness or coldness

  27. Solid angle

  28. (5)

    candela

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