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Questions and Answers
What is the unit of velocity in the S.I. system?
What is the unit of velocity in the S.I. system?
- cm
- m
- cm/s
- m/s (correct)
What is the unit of torque accepted nationally?
What is the unit of torque accepted nationally?
- m/s
- Newton meter (correct)
- dyne meter
- pound
What is the standard unit for luminous flux?
What is the standard unit for luminous flux?
- Watt
- Newton
- Pascal
- Lumen (correct)
What is the standard unit for power?
What is the standard unit for power?
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How are units classified?
How are units classified?
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Study Notes
Units & Measurements in Basic Science
- S.I. unit of acceleration is meters per second squared (m/s²).
- Derived quantities are formed from fundamental quantities, such as m/s (velocity) and N (Newton for force).
- Joule is the unit of energy, often represented as option C in related questions.
- A standard used to measure a physical quantity is known as a unit.
- Measurement requires both a numerical value and a unit for accurate representation.
- There are two main types of units: fundamental units and derived units.
- Kelvin is the unit of temperature, fundamental in thermodynamics.
- Derived quantities depend on two or more fundamental quantities for their definitions, such as force (N) being derived from mass (kg) and acceleration (m/s²).
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