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

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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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

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
Submit

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

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 3

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 4

Question # 1

Discuss the assessment of uncertainty in the final result?

  • Ans 1: pic
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 5

Question # 1

What are derived units? Explain.

  • 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 and pascal are derived units.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 6

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 7

Question # 1

Define base quantities and units.

  • Ans 1: Base quantities: Base quantities are quantities on the basic of which other quantities are expressed.
  • Ans 2: Examples: Length mass, time, electric current, temperature, intensity of light, amount of substance.
  • Ans 3: Base Units: The units that decribe base quantities are called base units.
  • Ans 4: Examples: Second ampere, kelvin, kilogram metre.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 8

Question # 1

Why a screw gauge measures more accurately than a vernier cllipers

  • Ans 1: Because least count of screw guage is 0.01mm and divide 1mm into 10 equal parts. But least count of vernier calipers is 0.1mm and 1mm. divide into 10 equal parts.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 9

Question # 1

Define the process of painting with one example.

  • Ans 1: It is structual adaptation for heat regulation in dogs. Painting is evaporative cooling in the respiratory tract for temperature regulation.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 10

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 Short Questions Test

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