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 Physics.

  • Ans 1: The branch of science which deals with study of matter and energy and the relationships between them is called physics.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 1

Question # 1

Define Physics.

  • Ans 1: The branch of science which deals with study of matter and energy and the relationships between them is called physics.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 2

Question # 1

Give the drawbacks to use the period of pendulum as a time standard.

  • Ans 1:
    The value of time periods of a simple pendulum depends upon its length and gravitational acceleration. So, the following drawbacks will be observed.
    • The value of g varies with altitudes
    • Length of the pendulum varies due to the increase or decrease in temperature .
    • Air resistance will affect the time period.



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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 3

Question # 1

Deduce the dimensions of gravitational constant ?

  • Ans 1: pic
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 4

Question # 1

Write down two rules to find the significant digits in measurement

  • Ans 1: Rules to find significant digits are following
    Zero between significant figures are always significant.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 5

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 Chapter 1 Short Questions Test - Set 6

Question # 1

Define physical quantities and derived quantities.

  • Ans 1: Physical quantites: All measurable quantities are called physical quantities.
  • Ans 2: Example: Length mass, time and temperature etc.
  • Ans 3: Derived quantites: The quantities that are expressed in terms of base quantities are called derived quantities.
  • Ans 4: Examples: Area, volume, speed, force, work etc are derived quantities.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 7

Question # 1

Write down four conventions for indicating units.

  • Ans 1: The convection for indicating units are as follows:
    1. Full name of the unit does not begin with the capital letter even if named after a scientist e.g. Newton.
    2. The symbol of unit named after a scientists has initial capital letter e.g. N for newton.
    3. The prefix should be written before the unit without any spacee.g. 1x 10-6= µ m

    4. Compound prefixes are not allowed. For example 1 µµF should be written as 1 pF.

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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 8

Question # 1

Write down the two uses of dimensional analysis.

  • Ans 1: It is used for .
    • Checking the homogeneity of the physical equation.
    • Deriving the possible formula.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 9

Question # 1

Define Base, Derived, supplementary, Units ?

  • Ans 1: Base Units:The units of base quantities are known as base unit.
    Base quantity: Symbol
    Length l
    Mass M
    Time t
    Electric current I
    Temperature T
    Derived Quantity:The unit of derived quantities are known as derived units. The derived units can be derived from base unit and supplementary units
    Supplementary Units:The general conference on weight and measures has not yet classified certain units of the SI under either base units or derived units such SI Units are called supplementary units This class contains only two units of purely geometrical quantities which are place angle and the said angle.
    1. Radian :It is the unit of plane angle. One radian represents a plane angle subtended at the center of a circle by on are of length equal to radius of the circle.
    2. Steradian:Steradian is the unit for a solid angle in a three dimensional space steradian is defined as "the solid angle subtended at the center of a sphere by an area of its surface equal to the square of the radius of that sphere"
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 10

Question # 1

Explain " Rounding off numbers ?

  • Ans 1: The quantities in a measurement are always rounded off to certain level of accuracy. The following rules must be observed while rounding off a number.
    1. If the dropping digits is less than "5" then the last retained digit is kept as it is For example 863.73 is rounded to 863.7
    2. If the dropping digits is greater than '5' then the last retained digits is increased by '1' for example 9.66 is rounded to 9.7
    3. If the dropping digits is '5' and the last retained digit is even then it will be remain uneffected. For example 66.45 is rounded to 66.4
    4. If the dropping is '5' and the last retained digit is add, then it will be increases by '1' for example 76.35 is rounded to 76.4
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ICS Part 1 Physics Short Questions Test

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