Podcast
Questions and Answers
Which of the following is a fundamental physical quantity?
Which of the following is a fundamental physical quantity?
- Volume
- Mass (correct)
- Area
- Density
Which physical quantity is derived from other quantities?
Which physical quantity is derived from other quantities?
- Sound
- Length
- Velocity
- Pressure (correct)
What is the base unit for temperature?
What is the base unit for temperature?
- Rankine
- Celsius
- Fahrenheit
- Kelvin (correct)
Which physical quantity is independent and does not rely on other quantities for its measure?
Which physical quantity is independent and does not rely on other quantities for its measure?
Which physical quantity is not a fundamental quantity?
Which physical quantity is not a fundamental quantity?
What is the base unit for luminous intensity?
What is the base unit for luminous intensity?
Which physical quantity is not a fundamental quantity?
Which physical quantity is not a fundamental quantity?
What is the base unit for amount of substance?
What is the base unit for amount of substance?
Which physical quantity is derived from other quantities?
Which physical quantity is derived from other quantities?
What is the base unit for current?
What is the base unit for current?
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Study Notes
Fundamental Physical Quantities
- Fundamental physical quantities are basic measurements that do not rely on other quantities. Examples include length, mass, time, electric current, temperature, amount of substance, and luminous intensity.
Derived Physical Quantities
- Derived physical quantities are those that are defined in terms of the fundamental quantities, such as speed (derived from distance and time) and force (derived from mass and acceleration).
Base Units
- The base unit for temperature is the Kelvin (K).
- The base unit for luminous intensity is the Candela (cd).
- The base unit for amount of substance is the Mole (mol).
- The base unit for electric current is the Ampere (A).
Notable Information
- Not all physical quantities are fundamental; some are derived from combinations of the fundamental ones, illustrating the structure of physical measurements.
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