ICS Part 1 Physics English Medium Chapter 1 Online Short Questions Test with Answers

Online Short Questions For Chapter 1 "ICS Part 1 Physics Chapter 1 Short Questions Test "

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Physics - ICS Part 1 Physics Chapter 1 Short Questions Test

Question # 1

What is physical significance of dimension of physical quantity?

  • Ans 1: Each base quantity is considered a dimension. It stands for the qualitative nature of the physical quantity. Dimensions give information about the nature of a physical quantity, its units of measure and correctness of physical equation.
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Prepare Complete Set Wise Questions For Chapter 1 "ICS Part 1 Physics Chapter 1 Short Questions Test "

ICS Part 1 Physics Chapter 1 Short Questions Test - Set 1

Question # 1

What is physical significance of dimension of physical quantity?

  • Ans 1: Each base quantity is considered a dimension. It stands for the qualitative nature of the physical quantity. Dimensions give information about the nature of a physical quantity, its units of measure and correctness of physical equation.
Submit

ICS Part 1 Physics Chapter 1 Short Questions Test - Set 2

Question # 1

Define derived units.

  • Ans 1: The units associated with the derived quantities are called derived units. SI units for measuring all other physical quantities are derived from the base and supplementary units. For Example, newton, joule, watt, pascal etc.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 3

Question # 1

Discuss the assessment of uncertainty in the final result?

  • Ans 1: pic
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 4

Question # 1

Define and explain supplementary units?

  • Ans 1: The general conference on Weights and Measures has not yet classified certain unit of SI under either base or derived units. These SI units are called supplementary units.
    Radian and Steradian are supplementary units.
    Radian: The radian is the plane angle between two radii of a circle which cut off on the circumference an arc, equal I length to the radius. It is two dimensional angles.
    Steradian: The Sterdian is the solid angle subtended at the center of the sphere by an area of its surface equal to the square of radius of the sphere. It is three dimensional angles.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 5

Question # 1

Define Base and Derived Units.

  • Ans 1: Base Unit: The unit that describe base quantities are called base units.
    Examples: Unit of length is meter and Unit of mass is kilogram.
  • Ans 2: Derived Units: The units used to measure derived quantities are called derived units.
    Examples: Unit velocity is Meter per second (ms) Unit of acceleration is meter m3, Unit of force (Newton) N, Unit of presure is Pascal (Pa) Unit of charge Coulomb (C)
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 6

Question # 1

what is diffraction?

  • Ans 1: the bending or spreading of waves around the sharp edges or obstacles is called diffraction.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 7

Question # 1

Define base units. Give one example.

  • Ans 1: Base Units: The units that describe base quantities are called base units.
  • Ans 2: Example: Kilogram (kg) base unit of mass (bass quantity
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 8

Question # 1

Name several repetitive phenomenon occurring in nature which could serve as reasonable time standard.

  • Ans 1: Some of the natural phenomena that can be used as time standard are as follow:
    1. The rotation of earth around the sun.
    2. The revolution of earth .
    3. The revolution of moon around the earth.
    4. Atomic vibrations in crystals.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 9

Question # 1

The period of simple pendulum is measured by a stop watch. What type of errors are possible in the time period?

  • Ans 1: The two types of errors are possible .
    Random error which is due to the negligence or inexperience of a person at the time of starting and stopping the stopwatch.And systematic error which occurs due to the poor calibration of the instrument.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 10

Question # 1

Explain the term " precision" and accuracy ?

  • Ans 1: The 'Precision represents the magnitude of error in a measurement while the accuracy means to check how the measured values are closer to the actual value. The accuracy represents the relative error. It can be obtained by dividing the error with measured quantity.
    The accuracy depends on the error if the error is greater than smaller will be the accuracy of the measurements and vice versa.
    The accuracy of the measurements can be increased by taking several readings and take their average.
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1st Chapter

ICS Part 1 Physics Short Questions Test

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