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.
Submit

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

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 3

Question # 1

How can you assess the uncertainty in the average value of many measurements?

  • Ans 1: To assess the uncertainty, we find the deviation of each measured value from the average value. The mean deviation is the uncertainty in the average value.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 4

Question # 1

What do you mean by scientific notation? Give an example.

  • Ans 1: The standard form to represent numbers using power of ten is called scientific notation. The accepted practice is that there should be only one non-zero digit left o decimal. For Example
    The scientific notation of measurement 134.7 is 1.347 x 102.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 5

Question # 1

Differentiate between the following? (a) Light year and year

  • Ans 1:
    1. Light Year:Light year is the unit of distance. It is defined as, " the distance travelled by light in vacuum in one year."
    2. Year:Year is the unit of time. It is defined as the time interval in which the earth completes one revolution around the sun"
    1 Year = 365.25 days
    and
    1 year = 365.25*24*3600 sec
    1 year = 31557600 sec
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 6

Question # 1

Define significant figures.

  • Ans 1: In any measurement, the accurately Known digits and the first doubtful digit are called the significant figures. For example, The number of significant figures in the measurement 02.59 are 3.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 7

Question # 1

Is a zero significant or not? Explain.

  • Ans 1: Azero may or may not be significant. The following rules are used.
    • A zero between two significant figures is itself significant.
    • Zeros to the left of significant figures are not significant .
    • In decimal fraction, zeros to the right of a significant figure are significant.
    However , in integers, the number of significant zeros is determined by the accuracy of the measuring instrument.
    • In scientific notation, the digits other than the powers of ten are significant.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 8

Question # 1

What is physics ? Discuss the importance of physics ?

  • Ans 1: Physics:
    The branch of science which deals with the properties of matter energy and their mutual relationship is known as physics.
    Physics has played on importance role in our daily life.
    1. The electronic media like T.V, radio, Loudspeaker, Telephone, cell phone, Photo phone for machine etc are the important source of communication which works on the principles of physics.
    2. Information technology is based on the principle of physics which is the scientific method of storing, protecting, processing, Transmitting, receiving and retrieving information
    3. The whole world has become a global village due to use of computer net works which works on the principles of physics.
    4. Atomic bomb is the invention of physics which can be used for the production of huge amount of energy. It can be also used for defence purposes.
    5. X-rays, Y-rays Laser rays etc. are the inventions of physics which can be used in industry, health and agriculture department for various purposes.
    6. Cathode ray oscilloscope (C.R.O) is the invention of physics which can be used as graph plotting device to see the wave from of a repetitive electronic signals the C.R.O can be also used in T.V circuits in computers system and as A.C circuits or D.C circuits circuits.
    7. All means of transport, like aeroplane buses, motor cycles, railways etc work on the principles of physics
    8. Electricity is the invention of physics without which we can not imagine any machine in working conditions
    9. Rockets and satellites are the invention of physics with the help of which we can get information about the upper atmosphere.
    10. The simple machine like pulley, wedge, like leaver screw-jack etc are the invention of physics which can be used for various purposes invention of physics which can be used for various purpose in daily life.
    11. Physics explain the natural phenomena in term of fundamental principles and basics and basic Laws
    12. Electron microscope is the invention of physics which is used to see distant objects clearly.
    13. Microphone is the invention of physics which can be used to study microorganisms clearly and easily
    14. Telescope is the invention of physics which is used to see distance objects clearly.
    15. Physics employs the essential steps of scientific method observation recording analysis prediction and verification.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 9

Question # 1

Write two uses of X-rays diffraction by crystals.

  • Ans 1: X-ray diffraction has been very useful in determining the structure of biologically important molecules such as hemoglobin and double helix structure of DNA.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 10

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.
Submit

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ICS Part 1 Physics Short Questions Test

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