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

Name several repetitive phenomenon occurring in nature which could serve as reasonable time standard.

  • Ans 1: Some of the natural phenomena that can be used as time standard are as follow:
    1. The rotation of earth around the sun.
    2. The revolution of earth .
    3. The revolution of moon around the earth.
    4. Atomic vibrations in crystals.
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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

Name several repetitive phenomenon occurring in nature which could serve as reasonable time standard.

  • Ans 1: Some of the natural phenomena that can be used as time standard are as follow:
    1. The rotation of earth around the sun.
    2. The revolution of earth .
    3. The revolution of moon around the earth.
    4. Atomic vibrations in crystals.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 2

Question # 1

What is Scientific Notation .Explain ?

  • Ans 1: Writting number in power of ten or standard from N=M*10nis called scientific Notation.
    Explanation:With the help of Scientific Notation, we can express very large number or small number very easily. A large or small number "N" can be expressed in term of a number "M" and a power of '10 '
    N= M * 10n-------------------(1)
    In equation 1 "M" represents a number whose first digit is non-zero digit. "n" represents the power of 10, which may be positive or negative
    For example 150,000,000,000 m can be expressed in scientific notation as under
    150,000,000,000 m = 1.5* 1011m
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 3

Question # 1

Define system of units ? Give the name of various system of unit?

  • Ans 1: System Units:A complete set of unit for all physical quantities is known as system of units .
    Explanation:There are several system of unit For example
    Foot - pound - system ( FPS)
    Meter - kilogram -second system (MKS )
    Centimetre - gram - second system (CGS )
    But the most popular system id the system international (SI)
    System International(SI):In 1960 on international committee agreed on a set of definitions and standards to describe the physical quantities. The system that was established is called system international (SI)
    The system international is used throughout the world. Its unit are convenient for daily use .
    The system international is build-up from three kinds of unit
    • Base Unit
    • Derived Units
    • Supplementary Units
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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

What role SI units have played in the development of science

  • Ans 1: With the development of science and technology, S.I units fulfill the serious need of for a commonly accept system of unit all over the world.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 6

Question # 1

What is importance of bivalent formation?.

  • Ans 1: Due to bivalent formation of homologous chromosomes,the non sister chromatids exchange their segment during the crossing over resulting in new recombination.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 7

Question # 1

Discuss the various branches of physics?

  • Ans 1: The various branches of physics are given below.
    1. Mechanies:It is the branch of physics which deals with the study of motion of material objects under the action of forces
    2. Heat:It is the branch of physics which deals with the study of nature, properties and uses of heat energy.
    3. Light:It is the branch of physics which deals with the study of nature, properties and use of light energy
    4. Electricity and Magnetism: It is the branch of physics which deals with the properties of charge at the rest as well as in motion.
    5. Atomic Physics:It is the branch of physics which deals with the structures and properties of individual atoms.
    6. Nuclear Physics:It is the branch of physics which deals with the properties of nucleus.
    7. Solid State Physics:The branch of physics which deals with the physical properties of solids is known as solid state physics.
    8. Elementary particle physics:It is the branch of physics which deals with deals with the study of sub-atomic particles.
    9. Plasma Physics:It is the branch of physics which deals with the study of properties of ionized gases
    10. Astrophysics:It is the branch of physics which deals with the study of biology based on the principle of physics.
    11. Geo - physics:It is the branch of physics which deals with the study of earth and its atmosphere.
    12. Health Physics:It is the branch of physics which deals with the study of diseases and their treatment.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 8

Question # 1

The period of simple pendulum is measured by a stop watch. What type of errors are possible in the time period?

  • Ans 1: The two types of errors are possible .
    Random error which is due to the negligence or inexperience of a person at the time of starting and stopping the stopwatch.And systematic error which occurs due to the poor calibration of the instrument.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 9

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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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 10

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 Short Questions Test

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