Podcast
Questions and Answers
How is the result of a measurement of a physical quantity typically expressed?
How is the result of a measurement of a physical quantity typically expressed?
- With a formula
- As a number accompanied by a unit (correct)
- As a ratio
- With a conversion factor
What is the basic reference standard called for the measurement of any physical quantity?
What is the basic reference standard called for the measurement of any physical quantity?
- Fundamental unit (correct)
- Derived unit
- International system
- Dimension
What are the units for the fundamental or base quantities known as?
What are the units for the fundamental or base quantities known as?
- International units
- Derived units
- Fundamental units (correct)
- Basic units
How are the units of all other physical quantities expressed?
How are the units of all other physical quantities expressed?
What do we call the set of both base units and derived units together?
What do we call the set of both base units and derived units together?
Which system of units was extensively used by scientists in earlier times?
Which system of units was extensively used by scientists in earlier times?
What is the unit for plane angle?
What is the unit for plane angle?
Which base quantity is measured in kilograms?
Which base quantity is measured in kilograms?
What is the SI unit for time?
What is the SI unit for time?
Which unit has the symbol 'sr'?
Which unit has the symbol 'sr'?
What is the SI unit of electric current?
What is the SI unit of electric current?
Which SI base quantity is defined by the speed of light in vacuum?
Which SI base quantity is defined by the speed of light in vacuum?
Which of the following systems uses foot, pound, and second as base units?
Which of the following systems uses foot, pound, and second as base units?
Which international system has seven base units as defined in Table 1.1?
Which international system has seven base units as defined in Table 1.1?
What is the definition of plane angle (dθ) in SI units?
What is the definition of plane angle (dθ) in SI units?
Why are conversions within the SI system considered simple and convenient?
Why are conversions within the SI system considered simple and convenient?
What organization developed the standard scheme of symbols, units, and abbreviations for the SI system in 1971?
What organization developed the standard scheme of symbols, units, and abbreviations for the SI system in 1971?
Which system is currently internationally accepted for measurement?
Which system is currently internationally accepted for measurement?
