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 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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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 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.
Submit

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

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 3

Question # 1

Write down the two uses of dimensional analysis.

  • Ans 1: It is used for .
    • Checking the homogeneity of the physical equation.
    • Deriving the possible formula.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 4

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 5

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

Question # 1

Define anhydrobiosis with an example

  • Ans 1: The ability to tolerate dehydration this process is called anhydrobiosis for example kangaroo rat a desert animal can tolerate dehydration without drinking water by feeding desert plants containing more carbohydrates which produce water of metabolism
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 7

Question # 1

Write down four conventions for indicating units.

  • Ans 1: The convection for indicating units are as follows:
    1. Full name of the unit does not begin with the capital letter even if named after a scientist e.g. Newton.
    2. The symbol of unit named after a scientists has initial capital letter e.g. N for newton.
    3. The prefix should be written before the unit without any spacee.g. 1x 10-6= µ m

    4. Compound prefixes are not allowed. For example 1 µµF should be written as 1 pF.

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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 8

Question # 1

Find the dimension of kinetic energy ?

  • Ans 1: pic
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 9

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 10

Question # 1

Add the mass given in kg up to appropriate precision: 2.189,0.089,11.8 and 5.32.

  • Ans 1: As m= 2.189+0.089 +11.8+5.32+19.398 kg
    By appropriate precision m= 19.4kg
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ICS Part 1 Physics Short Questions Test

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