Measurement English Medium Free Online Test 1 Mark Questions with Answer key 2020-2021

8th Standard

    Reg.No. :
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Science

Time : 00:10:00 Hrs
Total Marks : 10

    Part A

    10 x 1 = 10
  1. Electric current belongs to ______quantities

    (a)

    base

    (b)

    supplementary

    (c)

    derived

    (d)

    professional

  2. Amount of substance is

    (a)

    directly proportional to the number of atoms

    (b)

    inversely proportional to the number of atoms

    (c)

    directly proportional to the square of number of atoms

    (d)

    inversely proportional to the square of number of atoms

  3. Which one of the following devices is used to measure electric current

    (a)

    (b)

    (c)

    (d)

  4. Closeness of two or more measured values is called as

    (a)

    accuracy

    (b)

    precision

    (c)

    error

    (d)

    approximation

  5. Which of the following statements about approximation is wrong?

    (a)

    Approximation gives accurate value

    (b)

    Approximation simplifi es the calculation

    (c)

    Approximation is very useful when little information is available

    (d)

    Approximation gives the nearest value only

  6. Normal temperature of the human body is between

    (a)

    98.4°Fand 99.6°F

    (b)

    98.40Fand 98.60F

    (c)

    97.4°Fand 98.6°F

    (d)

    97.6°Fand 99.60F

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

    (a)

    Condutors

    (b)

    Insulators

    (c)

    Supercondutors

    (d)

    Semiconductors

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

    (a)

    Luminous flux

    (b)

    Luminous power

    (c)

    Luminous Intensity

    (d)

    Both a and b

  9. Electric current (I) = ____________

    (a)

    Qt

    (b)

    t/Q

    (c)

    Q/t

    (d)

    Q/t2

  10. The unit of charge is ______

    (a)

    Coulomb

    (b)

    Ampere

    (c)

    Radian

    (d)

    Steradian

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