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

Sate the Hess's law of constant heat summation?

  • Ans 1: It states "If a chemical reaction takes place by different ways, the net change in energy is same regardless of the route by which the chemical change occurs.
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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

Sate the Hess's law of constant heat summation?

  • Ans 1: It states "If a chemical reaction takes place by different ways, the net change in energy is same regardless of the route by which the chemical change occurs.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 2

Question # 1

What type of blood vessels surrounds the alveoli?

  • Ans 1: Artery
  • Ans 2: Arteriole
  • Ans 3: Capillary
  • Ans 4: Vein
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 3

Question # 1

Give two adaptation of marine fish for its survival in cold environment.

  • Ans 1: These fishes have a thick layer of insulting fat called blubber which prevent excess heat loss from the body.
  • Ans 2: Arteriole
  • Ans 3: Capillary
  • Ans 4: Vein
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 4

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 5

Question # 1

What are base units name all of them?

  • Ans 1: The units associated with the base quantities are called base units. Other units are derived from base units . There are meter, Kilogram, second, candela, mole, ampere, kelvin.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 6

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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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 7

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 8

Question # 1

Why do we find it useful to have two units for the amount of substance kilogram and mole?

  • Ans 1: Both units are used to describe the amount of the substance. Kilogram is used for macroscopic objects or for macroscopic behavior of the objects while mole is used for microscopic object or on microscopic scale when number of atoms or molecules are concerned.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 9

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 10

Question # 1

Explain Server repetitive phenomena occuring naturally which could served reason able time stands?

  • Ans 1: Any phenomenon that repeats its after regular time intervals can be used as a time standard.
    The several repetitive phenomenon occuring naturally which could served reasonable time standards are given below.
    1. The motion of earth around the sun and its spin motion can be used as reasonable time standards
    2. Revolution of mean around the earth can be used as reasonable time standards.
    3. Characteristics vibration of crystals such as quartz crystal can be used as reasonable time standards
    4. Some other repetitive phenomena which can be adopted to define a time standards are heart beat, human pulse rate radio active decay rate of some substance, changing of seasons change of shadow of an object in the sun light etc.
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