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

How can we reduce random and systematic error?

  • Ans 1: Reduce random error: Repeating the measurement several times and taking an average can reduce the effect of random error.

    Reduce systematic error: The systematic error can be reduced by comparing the instrument with another which is known to be more accurate and a correction factor is applied.
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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

How can we reduce random and systematic error?

  • Ans 1: Reduce random error: Repeating the measurement several times and taking an average can reduce the effect of random error.

    Reduce systematic error: The systematic error can be reduced by comparing the instrument with another which is known to be more accurate and a correction factor is applied.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 2

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 3

Question # 1

Explain " Rounding off numbers ?

  • Ans 1: The quantities in a measurement are always rounded off to certain level of accuracy. The following rules must be observed while rounding off a number.
    1. If the dropping digits is less than "5" then the last retained digit is kept as it is For example 863.73 is rounded to 863.7
    2. If the dropping digits is greater than '5' then the last retained digits is increased by '1' for example 9.66 is rounded to 9.7
    3. If the dropping digits is '5' and the last retained digit is even then it will be remain uneffected. For example 66.45 is rounded to 66.4
    4. If the dropping is '5' and the last retained digit is add, then it will be increases by '1' for example 76.35 is rounded to 76.4
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 4

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 5

Question # 1

Define derived quantities and write the name of two derived quantities.

  • Ans 1: Derived quantities: Those physical quantities which are expressed in terms of base quantities are called the derived quantities.
  • Ans 2: Examples: Area, volume, speed, force, work, energy power, electric charge, electric potential.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 6

Question # 1

Differentiate between precise and accurate measurement.

  • Ans 1: Precis Measurement: A measurement which has less absolute uncertainty is called precise measurement.

    Accurate Measurement: is the one which has less fractional or percentage error.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 7

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 8

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 9

Question # 1

How can you define term wave?

  • Ans 1: A wave is disturbance in the medium which causes the particles of medium to undergovibratory motion
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 10

Question # 1

Define physical quantities and derived quantities.

  • Ans 1: Physical quantites: All measurable quantities are called physical quantities.
  • Ans 2: Example: Length mass, time and temperature etc.
  • Ans 3: Derived quantites: The quantities that are expressed in terms of base quantities are called derived quantities.
  • Ans 4: Examples: Area, volume, speed, force, work etc are derived quantities.
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