Measurement of Physical Quantities

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What is the primary reason for the establishment of an ideal standard?

To facilitate international cooperation in scientific research

To ensure accuracy in measurements

To make a compromise between accessibility and invariability (correct)

To simplify arithmetic operations in calculations

What is the name of the system of units established by an international committee in 1960?

Universal System of Measurement (USM)

International System of Units (ISU)

System International (SI) (correct)

System of International Units (SIU)

What is the term used to describe the process of determining a number and a unit for a base quantity?

Calculation

Quantification (correct)

Standardization

Measurement

How many base units are there in the System International (SI)?

Seven Signup and view all the answers

What is the main advantage of the System International (SI)?

It is simple and convenient for arithmetic operations Signup and view all the answers

What is the purpose of the Appendix 1 in the context of the System International (SI)?

To provide the standard definitions of the base units Signup and view all the answers

What is the physical quantity that is related to the number of particles in a substance?

Amount of a substance Signup and view all the answers

What is the characteristic of an ideal standard that is often conflicting with its invariability?

Accessibility Signup and view all the answers

Why is the System International (SI) widely used by the scientific community?

It is convenient for arithmetic operations Signup and view all the answers

What are the three kinds of units that make up the System International (SI)?

Base units, supplementary units, and derived units Signup and view all the answers

Measurement of Physical Quantities

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Questions and Answers

What is the primary reason for the establishment of an ideal standard?

What is the name of the system of units established by an international committee in 1960?

What is the term used to describe the process of determining a number and a unit for a base quantity?

How many base units are there in the System International (SI)?

What is the main advantage of the System International (SI)?

What is the purpose of the Appendix 1 in the context of the System International (SI)?

What is the physical quantity that is related to the number of particles in a substance?

What is the characteristic of an ideal standard that is often conflicting with its invariability?

Why is the System International (SI) widely used by the scientific community?

What are the three kinds of units that make up the System International (SI)?

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