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 two major types of errors in measurement and also define them.

  • Ans 1: The major types of errors in measurement are Systematic Error and Random Error.

    Systematic Errors:Systematic errors occurs when repeated measurements of a quantity give the same values under the same conditions.This error is due to poor calibration or zero error in the stop watch. This error can be removed by applying correction factor
  • Ans 2: Random Error: Random error occurs when repeated measurements of a quantity give different values under the same conditions. This error is due to faulty procedure or negligence and inexperience of person at the time to start or stop the stop watch. This can be reduced by taking average value of observed readings .
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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 two major types of errors in measurement and also define them.

  • Ans 1: The major types of errors in measurement are Systematic Error and Random Error.

    Systematic Errors:Systematic errors occurs when repeated measurements of a quantity give the same values under the same conditions.This error is due to poor calibration or zero error in the stop watch. This error can be removed by applying correction factor
  • Ans 2: Random Error: Random error occurs when repeated measurements of a quantity give different values under the same conditions. This error is due to faulty procedure or negligence and inexperience of person at the time to start or stop the stop watch. This can be reduced by taking average value of observed readings .
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 2

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 3

Question # 1

Define light year. How many meters are there in one light year?
[ Speed of light = 3x108ms-1)

  • Ans 1: Alight year is the distance light travels in one year.
    Since
    S = vt
    or S = vt
    S= (3x108ms-1)(365x24x60x60 s)
    S= 9.46x 1015m
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 4

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 5

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 6

Question # 1

Explain dimension of physics quantities ?

  • Ans 1: The power to which the fundamental units of first system must be raised to give the unit of a physics quantities are called dimensions of that quantity
    Explanation:The dimension represents the nature of a physics quantity. It tells us that how a quantities is related to the base units .It is represented by capital letters in a square brackets For example
    1. Dimension of mass length time are respectively written as [M] , [L]
    Use of dimensions.
    1. The dimension are used for checking the correctness of an equation or formula
    2. The dimension are used for deriving of certain formula for a physics quantity.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 7

Question # 1

Explain dimension of physics quantities ?

  • Ans 1: The power to which the fundamental units of first system must be raised to give the unit of a physics quantities are called dimensions of that quantity
    Explanation:The dimension represents the nature of a physics quantity. It tells us that how a quantities is related to the base units .It is represented by capital letters in a square brackets For example
    1. Dimension of mass length time are respectively written as [M] , [L]
    Use of dimensions.
    1. The dimension are used for checking the correctness of an equation or formula
    2. The dimension are used for deriving of certain formula for a physics quantity.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 8

Question # 1

Define the term error, uncertainty precision and accuracy in measurements?

  • Ans 1: Errors:The difference between measured value and actual value of a quantity is known as Error.
    Uncertainty:An estimate of the possible range of an error is known as uncertainty. (OR)
    The error which arises due to natural imperfections of the experimenter, the limitations of the apparatus and the changes in the environment during the measurement is known as uncertainty.
    Precision:The measure of the consistency of measurements is known as precision. It requirements the magnitude of error in measurements.
    Accuracy:The measure of correctness of a measurements is known as accuracy"
    The Accuracy means to check how the measure values is closer to the actual value It is a relative is closer to the actual value.It is a relative error. it can be obtained by dividing the error with measured quantity The accuracy depends on the error is greater than smaller will be the accuracy of the measurement can be increased by taking several reading and then take their average
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 9

Question # 1

What is the usual way to obtain plan wavefront from a point source?

  • Ans 1: A usual way to obtain a plane wavefront is to place a point source of light at the focus of a convex lens. The rays coming out of the lens will constitute plane waves.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 10

Question # 1

Find the base quantities involved in each of the following derived quantities:

  • Ans 1: work, Force
    Work is derive from base quantities mass, length and time.
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ICS Part 1 Physics Short Questions Test

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