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

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 1

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 2

Question # 1

Explain the term " precision" and accuracy ?

  • Ans 1: The 'Precision represents the magnitude of error in a measurement while the accuracy means to check how the measured values are closer to the actual value. The accuracy represents the relative error. It can be obtained by dividing the error with measured quantity.
    The accuracy depends on the error if the error is greater than smaller will be the accuracy of the measurements and vice versa.
    The accuracy of the measurements can be increased by taking several readings and take their average.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 3

Question # 1

How many seconds are there in one year?

  • Ans 1: Now 1 year = 1x 365 days
    1 year = 365x 1 days
    1 year = 365x 24 hours
    1 year = 8760 x 1 seconds
    1 year = 3.1536x 107s
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 4

Question # 1

What is meant by coexistances.

  • Ans 1: Living with other human beigns in peace and harmony mutual peace and lvoe is claled coexistence
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 5

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 6

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 7

Question # 1

Define the term light.

  • Ans 1: Light is the form of energy. Light is electromagnetic radiation that can be detected by the human eye. Light is a general term that is commonly used to refer to the visible spectrum.Visible menas something that can be seen using the eye, as opposed to invisible" things that cannot be seen
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 8

Question # 1

Define derived units and write two example.

  • Ans 1: Derived units: The units used to measure derived quantities are called derived units.
  • Ans 2: Examples: Unit of velocity is meter per second
    Unit of accelertationnn is meter per second per second ms
    Unit of Force is Newton (N)
    Unit of charge Coulomb (C)
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 9

Question # 1

Define systematic errors. Explain how can we remove the effect of systematic errors?

  • Ans 1: 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.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 10

Question # 1

Deduce the dimensions of gravitational constant ?

  • Ans 1: pic
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