Physics 11th Class Chapter 1(Measurement) Online Short questions with Answers Preparation

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Introduction

Physical quantities

International systems of units

Base units

Supplementary units

Derived units, scientific notations

Conventions for Indicating Units

Errors and Uncertainties

Dimensions of Physical Quantities

In this way, ilmkidunya educational website also provides the all study related helping material online for the ease of students of all board classes. Students can get guess papers which plays an important role before attempt the paper. They can also fine past papers, roll no slips, date sheets, results of all papers and all classes

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FSC Part 1 Physics Preparation

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Online Short Questions For Chapter 1 "FSC Part 1 Physics Chapter 1 Short Questions Preparation "

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Physics - FSC Part 1 Physics Chapter 1 Short Questions Preparation

Question # 1

Enthalpy is a state function Justify?

Ans 1: The total heat content of a system is called enthalpy. Equation
H= E+PV E,P and V are state functions so enthalpy is also a state function.It is not possible to measure the enthalpy of a system in a given state.However change in enthalpy can be measured for achange in the state of system.

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FSC Part 1 Physics Chapter 1 Short Questions Preparation - Set 1

Question # 1

Enthalpy is a state function Justify?

Ans 1: The total heat content of a system is called enthalpy. Equation
H= E+PV E,P and V are state functions so enthalpy is also a state function.It is not possible to measure the enthalpy of a system in a given state.However change in enthalpy can be measured for achange in the state of system.

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FSC Part 1 Physics Chapter 1 Short Questions Preparation - Set 2

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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FSC Part 1 Physics Chapter 1 Short Questions Preparation - Set 3

Question # 1

How many nanoseconds are there in 1 year?

Ans 1: As 1 year = 3.136x10^{7 s}
1 year = 3.1536x10⁷ X1s
1 year =3.1536x10⁷x10⁹x10^-9s
1 year =3.1536x10⁷x10^-9ns
1 year =3.1536x 10¹⁶ns

Question # 8

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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FSC Part 1 Physics Chapter 1 Short Questions Preparation - Set 4

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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FSC Part 1 Physics Chapter 1 Short Questions Preparation - Set 5

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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FSC Part 1 Physics Chapter 1 Short Questions Preparation - Set 6

Question # 1

What do you mean by scientific notation? Give an example.

Ans 1: The standard form to represent numbers using power of ten is called scientific notation. The accepted practice is that there should be only one non-zero digit left o decimal. For Example
The scientific notation of measurement 134.7 is 1.347 x 10².

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FSC Part 1 Physics Chapter 1 Short Questions Preparation - Set 7

Question # 1

Define prefixes and write two examples.

Ans 1: Prefixes: Prefixes are the words or letters added before a unit and stand for the multiples or sub-multiples of that unit
Ans 2: Examples: Kilo (k) mega (m), micro (m), milli (m) etc.

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FSC Part 1 Physics Chapter 1 Short Questions Preparation - Set 8

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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FSC Part 1 Physics Chapter 1 Short Questions Preparation - 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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FSC Part 1 Physics Chapter 1 Short Questions Preparation - Set 10

Question # 1

Define and explain supplementary units?

Ans 1: The general conference on Weights and Measures has not yet classified certain unit of SI under either base or derived units. These SI units are called supplementary units.
Radian and Steradian are supplementary units.
Radian: The radian is the plane angle between two radii of a circle which cut off on the circumference an arc, equal I length to the radius. It is two dimensional angles.
Steradian: The Sterdian is the solid angle subtended at the center of the sphere by an area of its surface equal to the square of radius of the sphere. It is three dimensional angles.

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Physics

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11th Class Physics Chapter 1 Preparation

Here you can prepare 11th Class Physics Chapter 1 Measurements Preparation. Click the button for 100% free full Preparation.

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Chapter 1

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First Year Physics Chapter 1 Online Short Question Test for 1st Year Physics Chapter 1 Measurements Preparation

Introduction

Physical quantities

International systems of units

Base units

Supplementary units

Derived units, scientific notations

Conventions for Indicating Units

Errors and Uncertainties

Dimensions of Physical Quantities

FSC Part 1 Subjects

Online Short Questions For Chapter 1 "FSC Part 1 Physics Chapter 1 Short Questions Preparation "

Physics - FSC Part 1 Physics Chapter 1 Short Questions Preparation

Enthalpy is a state function Justify?

Define derived units.

Define least count and write meter rod's least count

Name several repetitive phenomenon occurring in nature which could serve as reasonable time standard.

Define system of units ? Give the name of various system of unit?

Add the mass given in kg up to appropriate precision: 2.189,0.089,11.8 and 5.32.

Discuss the various branches of physics?

Define basic units.

What role SI units have played in the development of science

The period of simple pendulum is measured by a stop watch. What type of errors are possible in the time period?

Prepare Complete Set Wise Questions For Chapter 1 "FSC Part 1 Physics Chapter 1 Short Questions Preparation "

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

Set 7

Set 8

Set 9

Set 10

FSC Part 1 Physics Chapter 1 Short Questions Preparation - Set 1

Enthalpy is a state function Justify?

Define derived units.

Define least count and write meter rod's least count

Name several repetitive phenomenon occurring in nature which could serve as reasonable time standard.

Define system of units ? Give the name of various system of unit?

Add the mass given in kg up to appropriate precision: 2.189,0.089,11.8 and 5.32.

Discuss the various branches of physics?

Define basic units.

What role SI units have played in the development of science

The period of simple pendulum is measured by a stop watch. What type of errors are possible in the time period?

FSC Part 1 Physics Chapter 1 Short Questions Preparation - Set 2

Define base units. Give one example.

Explain Server repetitive phenomena occuring naturally which could served reason able time stands?

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

What are three fundamental frontiers of fundamental science?

What type of blood vessels surrounds the alveoli?

Enthalpy is a state function Justify?

The period of simple pendulum is measured by a stop watch. What type of errors are possible in the time period?

An old saying is that " A chain is only as strong as its weakest link , " What analogous statement can you make regarding measurement ?

Define base quantities and units.

Give four parasitic adaptation of flat worms.

FSC Part 1 Physics Chapter 1 Short Questions Preparation - Set 3

How many nanoseconds are there in 1 year?

How many seconds are there in one year?

What is the usual way to obtain plan wavefront from a point source?

Define Base and Derived Units.

Described the principle of homogeneity of dimensional analysis.

How can we reduce random and systematic error?

What are base units name all of them?

What is physics ? Discuss the importance of physics ?

Define derived units.

Define the term "Joule" and convert 15 calories to joules?

FSC Part 1 Physics Chapter 1 Short Questions Preparation - Set 4

Is a zero significant or not? Explain.

Write the main type of error.

What is Scientific Notation .Explain ?

Define physical quantities and derived quantities.

Name two major types of errors in measurement and also define them.