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

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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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

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 2

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 3

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 4

Question # 1

What is unit

  • Ans 1: Once a standard is set for a quantity then it can be expressed in terms of that standard quantity. This standard quantity is called unit.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 5

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 6

Question # 1

Define derived quantities and write the name of two derived quantities.

  • Ans 1: Derived quantities: Those physical quantities which are expressed in terms of base quantities are called the derived quantities.
  • Ans 2: Examples: Area, volume, speed, force, work, energy power, electric charge, electric potential.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 7

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 8

Question # 1

what is diffraction?

  • Ans 1: the bending or spreading of waves around the sharp edges or obstacles is called diffraction.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 9

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 10

Question # 1

What are base units name all of them?

  • Ans 1: The units associated with the base quantities are called base units. Other units are derived from base units . There are meter, Kilogram, second, candela, mole, ampere, kelvin.
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ICS Part 1 Physics Short Questions Test

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