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

Define base quantities and units.

  • Ans 1: Base quantities: Base quantities are quantities on the basic of which other quantities are expressed.
  • Ans 2: Examples: Length mass, time, electric current, temperature, intensity of light, amount of substance.
  • Ans 3: Base Units: The units that decribe base quantities are called base units.
  • Ans 4: Examples: Second ampere, kelvin, kilogram metre.
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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

Define base quantities and units.

  • Ans 1: Base quantities: Base quantities are quantities on the basic of which other quantities are expressed.
  • Ans 2: Examples: Length mass, time, electric current, temperature, intensity of light, amount of substance.
  • Ans 3: Base Units: The units that decribe base quantities are called base units.
  • Ans 4: Examples: Second ampere, kelvin, kilogram metre.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 2

Question # 1

Define error and uncertainty ? Discuss the various types of error ?

  • Ans 1: Error:The difference between measured value and actual value is known as error.
    Uncertainty:The errors which a rises due to natural imperfection of the experimenter the limitation of the apparatus and the change in the environment during the measurement is known as Uncertainty
    Types of Errors:There are three type of errors which are given below.
    1. Personal Error:The error due to carelessness or improper knowledge about an instrument or incorrect reading of a scale by an experimenter is known as personal error. The personal error can be removed to some extent error if the experimenter take care during the measurement of any quantity and have proper knowledge about the measuring instrument.
    2. Systematic Error:The error due to faulty apparatus and poor calibration of the instrument is known as systematic error. The systematic error also a rises from zero error between scales as in vernier caliper screw gauge and spherometer. The systematic error can be removed by comparing the faulty instrument with some accurate and standard instrument. the difference of the two can be added tracted to the measurement if the error is positive then will be subtracted from faulty instrument reading for correctness. If the error is negative, then it will be added to the foulty instruments reading for correctness
    3. Statistical Error:The error due to repeated measurements of same quantity under same condition that result in different values of the same quantity is known random error.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 3

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 4

Question # 1

What are supplementary units? Write their names.

  • Ans 1: The General Conference on Weights and Measure has not yet classified certain unit of SI under either base or derived units. Theses SI units are called supplementary units.
    Radian and Steradian are supplementary units.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 5

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 6

Question # 1

Define the process of painting with one example.

  • Ans 1: It is structual adaptation for heat regulation in dogs. Painting is evaporative cooling in the respiratory tract for temperature regulation.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 7

Question # 1

Draw a table for base units.

  • Ans 1: Base Quantity. Base units Symbol
    Length Metre m
    Mass Kilogram kg
    Time ampere s
    Electric Current Kelvin A
    Thermodynamic Temperature Mole K
    Amount of substance Candela mol
    Luminous Intensity Second cd
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 8

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 9

Question # 1

Described the principle of homogeneity of dimensional analysis.

  • Ans 1: According to homogeneity principle
    "If the dimensions of physical quantities on both sides of equation are the same, then the equation will be dimensionally correct".
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 10

Question # 1

Are radius and steradian the basic units of SI? Justify your answer?

  • Ans 1: Radian and steradians are not the basic units of SI. These are the units of purely geometrical quantities i,e plane angle and solid angle respectively. The general conference on weight and measures has not yet classified there units under either base unit or derived units these are called supplementary units.
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