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

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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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

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 2

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 3

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 4

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 Chapter 1 Short Questions Test - Set 5

Question # 1

Give two adaptation of marine fish for its survival in cold environment.

  • Ans 1: These fishes have a thick layer of insulting fat called blubber which prevent excess heat loss from the body.
  • Ans 2: Arteriole
  • Ans 3: Capillary
  • Ans 4: Vein
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 6

Question # 1

What dose the word "micro" signify in the words "micro wave oven ?

  • Ans 1: Micro means very small. Micro waves have the shortest wavelength of all the shortest wavelengths of all the radio waves, therefore, these are known as microwaves. Now like all electromagnetic waves the microwaves produces heating effect when their energy is absorbed. It is because, due to shorter wave length the micro waves posses high frequency and maximum energy.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 7

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 8

Question # 1

Define base and derived quantities.

  • Ans 1: Base Quantities are the quantities on the basis of which other quantities are expressed.
    Examples: Length, mass time electric current, temperature. intensity of light and amount of substance are examples of base quantities.
  • Ans 2: Derived Quantities: The quantities that are expressed in term of base quantitites are called derived quantities.
    Examples: Volume, speed, force, work, electric, charge are some examples of derived quantities.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 9

Question # 1

What do you mean by significant figures ? Give the rules for determining significant figures ?

  • Ans 1: Significant Figures:The combination of accurately known digits and the first doubtful digits during a measurement are known as as significant figures
    Rules for determining significant figures:
    1. All non-zero digits from '1' to '9' are significant for example in 36.473 m there are five significant figure
    2. All zero between two non-zero digits are significant for example in y= 4.03 m there are three significant figures
    3. The zero to the right of a decimal symbol and to the left of non-zero digits are not significant
    4. All zero to the right of a decimal appears after non-zero digits are significant
    5. In case of scientific notation the figures before the power of ten are significant
    6. In case of addition and subtraction the result obtained is retained to the measurement which is least precise in the data
    7. In case of multiplication and division the final result is retained to the measurement which contains the last number of significant figure
    8. In case of rounding of non-significant figures the following rules should be followed.
    • IF the dropping digits is less than '5' then it will be just ignored For example 863.73 is rounded to 863.7
    • If the dropping digits is greater than '5' then the last retained digit is increased by '1' for example 8.76 is rounded of 8.8
    • If the dropping digits is '5' and the last retained digits is even then it will remains uneffected. for example, 56.45 is rounded to 56.4
    • If the dropping digits is '5' and the last retained and the last retained digits is add than it will be increased by '1' for example 46.35 is rounded to 46.4
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 10

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 Short Questions Test

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