9th Class Physics Chapter 1 Important MCQS With Answer

9th class Physics Chaper 01 MCQS

  1. The Number of Base Units in SI are:

    2. a) 3
    b) 6
    c) 7
    d) 9

    c) 7

  2. Which one of the following unit is not a derived unit?

    3. a) Pascal
    b) Kilogram
    c) Newton
    d) Mole

    d) Mole

  3. Which one of the following is the smallest quantity?

    4. a) 0.01g
    b) 2mg
    c) 100 µg
    d) 500ng

    d) 500ng

  4. An Interval of 200 µs is equivalent to;

    5. a) 0.2s
    b) 0.02s
    c) 2 x 10 -10s
    d) 2 x 10 -6s

    2 x 10 -10s

  5. Which instrument is most suitable to measure the internal diameter of a test tube?

    6. a) Meter Rule
    b) Vernier Callipiers
    c) Measuring Tape
    d) Screw Guage

    b) Vernier Callipiers

  6. A student claimed the diameter of a wire as 1.02cm using vernier callipers.Upto what extent do you agree with it?

    7. a) 1cm
    b) 1.0cm
    c) 1.03cm
    d) 1.032cm

    c) 1.03cm

  7. A Measuring cylinder is used to measure:

    8. a) Mass
    b) Area
    c) Volume
    d) Level of a Liquid

    c) Volume

  8. Significant figures in an expression are:

    9. a) All the Digits
    b) All the Accuretly known Digit
    c) All the Accurately Known Digit and the First Doubtful Digit.
    d) All the Accuratly known and all the doubtful Digit.

    c) All the Accurately Known Digit and the First Doubtful Digit

  9. The Study of internal structure of the earth is:

    10. a) Atomic Physics
    b) Geo Physics
    c) Sound
    d) Heat

    b) Geo Physics

  10. The Branch of Physics which deals with study of motion of Objects,its causes and effects is called;

    11. a) Sound
    b) Kinematics
    c) Mechanics
    d) Thermodynamics

    c) Mechanics

  11. Motion of the object is studied in:

    12. a) Mechanics
    b) Light
    c) Plasma
    d) Sound

    a) Mechanics

  12. The Word "Science" is derived from;

    13. a) Urdu
    b) Arabic
    c) Latin
    d) English

    c) Latin

  13. Refrigerator is bases on the principle of:

    14. a) Mechanics
    b) Thermodynamics
    c) Sound
    d) Light

    b) Thermodynamics

  14. The Branch of physics in which the structure and properties of an atom is studied called;

    15. a) Heat
    b) Nuclear Physics
    c) Atomic Physics
    d) Sound

    c) Atomic Physics

  15. The Number of base units in SI are;

    16. a) 7
    b) 3
    c) 6
    d) 8

    a) 7

  16. Amount of a Substance in term of numbers;

    17. a) Gram
    b) Kilogram
    c) Newton
    d) Mole

    d) Mole

  17. Kilogram is:

    18. a) Base Unit
    b) Base Quantity
    c) Derived unit
    d) Derived Quantity

    a) Base Unit

  18. The unit to find the quantity of matter in a substance is:

    19. a) Gram
    b) Newton
    c) Mole
    d) Kilogram

    c) Mole

  19. The Number of Base Quantity in SI System is:

    20. a) 3
    b) 4
    c) 5
    d) 7

    d) 7

  20. Basic Units is:

    21. a) Pascal
    b) Kilogram
    c) Newton
    d) Watt

    b) Kilogram

  21. Which of the following unit is not a derived unit?

    22. a) Pascal
    b) Kilogram
    c) Newton
    d) Watt

    b) Kilogram

  22. Which one of the following is the smallest quantity?

    23. a) 0.01 g
    b) 2 mg
    c) 100 µg
    d) 500 ng

    d) 500 ng

  23. An interval of 200 µs is equivalent to:

    24. a) 0.2s
    b) 0.02s
    c) 2 x 10 -4s
    d) 2 x 10 -3s

    c) 2 x 10 -4s

  24. Standard Form of 6400 km is _____.

    25. a) 64 x 10 2 km
    b) 64 x 10 3 km
    c) 64 x 10 -2 km
    d) 64 x 10 -3 km

    b) 64 x 10 3 km

  25. One Tera is Equal to:

    26. a) 10 -12
    b) 10 -18
    c) 10 12
    d) 10 19

    a) 10 12

  26. One Mega is Equal to:

    27. a) 10 3
    b) 10 6
    c) 10 9
    d) 10 12

    b) 10 6

  27. One femto is equal to:

    28. a) 10 12
    b) 10 -12
    c) 10 15
    d) 10 -15

    d) 10 -15

  28. Least Count of the guage is:

    29. a) 0.01 cm
    b) 0.1 mm
    c) 0.01 mm
    d) 0.1 cm

    c) 0.01 mm

  29. The Least Count of Digital vernier callipers is:

    30. a) 0.01 mm
    b) 0.001 mm
    c) 0.01 mm
    d) 1mm

    a) 0.01 mm

  30. Instrumnent which is most suitable to measure the internal diameter of test tube is:

    31. a) Meter Rod
    b) Vernier Callipiers
    c) Screw Guage
    d) Measuring Tape

    b) Vernier Callipiers

  31. The least count of meter rod is:

    32. a) 1mm
    b) 0.01m
    c) 0.01cm
    d) 0.01mm

    a) 1mm

  32. What is the least count of Mechanical stop watch?

    33. a) 0.1 s
    b) 0.01 s
    c) 0.001 s
    d) 0.0001 s

    a) 0.1 s

  33. The Length of Meter rule is:

    34. a) 1 Meter
    b) 0.5 Meter
    c) 2 meter
    d) none of these

    a) 1 Meter

  34. The least count of vernier callipers is:

    35. a) 0.01s
    b) 0.01mm
    c) 0.001cm
    d) 0.01cm

    d) 0.01cm

  35. Least Count of Screw Gauage is:

    36. a) 1 cm
    b) 0.001 m
    c) 0.01mm
    d) 1mm

    c) 0.01mm

  36. The Number of Significant Figures in 100.8 is:

    37. a) 2
    b) 3
    c) 4
    d) 5

    c) 4

  37. The Number of Significant Figures in 0.00580 is:

    38. a) 2
    b) 3
    c) 4
    d) 5

    b) 3

  38. Identify the base Quantity

    39. a) Speed
    b) Area
    c) Force
    d) Distance

    d) Distance

  39. The Branch of Physics which deals with study of motion of objects, its causes and effects is called:

    40. a) Sound
    b) Kinematics
    c) Mechanics
    d) Thermodynamics

    c) Mechanics

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