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

An old saying is that " A chain is only as strong as its weakest link , " What analogous statement can you make regarding measurement ?

  • Ans 1: The analogous statement is that the result of an experimental data which is as accurate as measurements can be used in the computation.
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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

An old saying is that " A chain is only as strong as its weakest link , " What analogous statement can you make regarding measurement ?

  • Ans 1: The analogous statement is that the result of an experimental data which is as accurate as measurements can be used in the computation.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 2

Question # 1

Define Base, Derived, supplementary, Units ?

  • Ans 1: Base Units:The units of base quantities are known as base unit.
    Base quantity: Symbol
    Length l
    Mass M
    Time t
    Electric current I
    Temperature T
    Derived Quantity:The unit of derived quantities are known as derived units. The derived units can be derived from base unit and supplementary units
    Supplementary Units:The general conference on weight and measures has not yet classified certain units of the SI under either base units or derived units such SI Units are called supplementary units This class contains only two units of purely geometrical quantities which are place angle and the said angle.
    1. Radian :It is the unit of plane angle. One radian represents a plane angle subtended at the center of a circle by on are of length equal to radius of the circle.
    2. Steradian:Steradian is the unit for a solid angle in a three dimensional space steradian is defined as "the solid angle subtended at the center of a sphere by an area of its surface equal to the square of the radius of that sphere"
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 3

Question # 1

Define Physical Quantities ? Explain base quantities and derived quantities?

  • Ans 1: Physical Quantities:All the measurable quantities are known as physical quantities for example, speed, mass , force, velocity, momentum temperature etc
    • Base Quantities:These are those physical quantities in term of which other physical quantities can be defined the base quantities can not be defined in term of other physical quantities.
    Example of base quantities:These are the seven base quantities, which are given below.
    1. Mass
    2. Length
    3. Time
    4. Current
    5. Temperature
    6. Amount of substance
    7. Luminous intensity
    • Derived Quantities:Those physical quantities which can be derived from base quantities are known as derived quantities
    Example of derived quantities:
    Force, Work, Power, energy, momentum, torque, speed, acceleration etc are the example of derived physical quantities

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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 4

Question # 1

What are two principal characteristics of an ideal standard?

  • Ans 1: An ideal standard has two principal characteristics.
    1. It is accessible.
    2. It is invariable.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 5

Question # 1

Define prefixes and write two examples.

  • Ans 1: Prefixes: Prefixes are the words or letters added before a unit and stand for the multiples or sub-multiples of that unit
  • Ans 2: Examples: Kilo (k) mega (m), micro (m), milli (m) etc.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 6

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 7

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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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

what is diffraction?

  • Ans 1: the bending or spreading of waves around the sharp edges or obstacles is called diffraction.
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