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

Explain dimension of physics quantities ?

  • Ans 1: The power to which the fundamental units of first system must be raised to give the unit of a physics quantities are called dimensions of that quantity
    Explanation:The dimension represents the nature of a physics quantity. It tells us that how a quantities is related to the base units .It is represented by capital letters in a square brackets For example
    1. Dimension of mass length time are respectively written as [M] , [L]
    Use of dimensions.
    1. The dimension are used for checking the correctness of an equation or formula
    2. The dimension are used for deriving of certain formula for a physics quantity.
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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

Explain dimension of physics quantities ?

  • Ans 1: The power to which the fundamental units of first system must be raised to give the unit of a physics quantities are called dimensions of that quantity
    Explanation:The dimension represents the nature of a physics quantity. It tells us that how a quantities is related to the base units .It is represented by capital letters in a square brackets For example
    1. Dimension of mass length time are respectively written as [M] , [L]
    Use of dimensions.
    1. The dimension are used for checking the correctness of an equation or formula
    2. The dimension are used for deriving of certain formula for a physics quantity.
Submit

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

Question # 1

Define least count and write meter rod's least count

  • Ans 1: smallest measurement hat can be taken by an instrument is called least count of that instrument Least Count
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 3

Question # 1

Discuss the various branches of physics?

  • Ans 1: The various branches of physics are given below.
    1. Mechanies:It is the branch of physics which deals with the study of motion of material objects under the action of forces
    2. Heat:It is the branch of physics which deals with the study of nature, properties and uses of heat energy.
    3. Light:It is the branch of physics which deals with the study of nature, properties and use of light energy
    4. Electricity and Magnetism: It is the branch of physics which deals with the properties of charge at the rest as well as in motion.
    5. Atomic Physics:It is the branch of physics which deals with the structures and properties of individual atoms.
    6. Nuclear Physics:It is the branch of physics which deals with the properties of nucleus.
    7. Solid State Physics:The branch of physics which deals with the physical properties of solids is known as solid state physics.
    8. Elementary particle physics:It is the branch of physics which deals with deals with the study of sub-atomic particles.
    9. Plasma Physics:It is the branch of physics which deals with the study of properties of ionized gases
    10. Astrophysics:It is the branch of physics which deals with the study of biology based on the principle of physics.
    11. Geo - physics:It is the branch of physics which deals with the study of earth and its atmosphere.
    12. Health Physics:It is the branch of physics which deals with the study of diseases and their treatment.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 4

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 5

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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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 6

Question # 1

Define base and derived quantities.

  • Ans 1: Base Quantities are the quantities on the basis of which other quantities are expressed.
    Examples: Length, mass time electric current, temperature. intensity of light and amount of substance are examples of base quantities.
  • Ans 2: Derived Quantities: The quantities that are expressed in term of base quantitites are called derived quantities.
    Examples: Volume, speed, force, work, electric, charge are some examples of derived quantities.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 7

Question # 1

What rules are of rounded off the significant figure?

  • Ans 1:
    1. If the first digit dropped is less than 5, the last digit retained should remain unchanged.
    2. If the first digit dropped is more than 5, the digit to be retained is increased by one.
    3. If the first digit to be dropped is 5 the previous digit which is to be retained is increased by one if it is odd and retained as such if it is even.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 8

Question # 1

Define Measurement, unit and Magnitude?

  • Ans 1: Measurement:The comparison of some thing with some standard is known as measurement.
    Unit:The standard with which thing are compared is known as unit.
    Magnitude:A number with proper unit is known as magnitude.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 9

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 10

Question # 1

Define systematic errors. Explain how can we remove the effect of systematic errors?

  • Ans 1: Systematic Errors: Systematic errors occurs when repeated measurements of a quantity give the same values under the same conditions.
    This error is due to poor calibration or zero error in the stop watch. This error can be removed by applying correction factor.
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ICS Part 1 Physics Short Questions Test

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