Questions and Answers
Which type of physical quantity depends upon one or more quantities for its measurement?
Derived physical quantity
How many fundamental physical quantities are there?
7
What are the two supplementary physical quantities?
Plane angle and solid angle
Why do we need to measure physical quantities?
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What is the standard or reference used for measurement of a physical quantity called?
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Study Notes
Types of Physical Quantities
- Derived physical quantities depend on one or more quantities for their measurement.
Fundamental Physical Quantities
- There are seven fundamental physical quantities.
Supplementary Physical Quantities
- The two supplementary physical quantities are plane angle and solid angle.
Importance of Measuring Physical Quantities
- We need to measure physical quantities to describe and analyze natural phenomena, make scientific predictions, and understand the world around us.
Standard Units
- A standard or reference used for the measurement of a physical quantity is called a unit.
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