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Questions and Answers
What is a physical quantity that cannot be measured?
What is a physical quantity that cannot be measured?
What is the term for physical quantities that are independent of other physical quantities?
What is the term for physical quantities that are independent of other physical quantities?
What is an example of a supplementary physical quantity?
What is an example of a supplementary physical quantity?
What is the question that helps to identify a physical quantity?
What is the question that helps to identify a physical quantity?
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How many types of physical quantities are classified?
How many types of physical quantities are classified?
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Study Notes
Quantity and Measurement
- A quantity is a property that exists as a magnitude or size, and can be measured by asking "how much" or "how many".
- Examples of physical quantities include length, mass, time, area, and volume.
- Physical quantities are measurable, unlike non-physical quantities like love, affection, and sadness.
- Classification of physical quantities is into three types:
Fundamental Physical Quantities
- Defined as physical quantities that are independent of other physical quantities.
- Examples of fundamental physical quantities are not provided in the text.
Derived Physical Quantities
- Not explicitly defined in the text, but are likely to be physical quantities that are derived from fundamental physical quantities.
Supplementary Physical Quantities
- Not explicitly defined in the text, but may be an additional categorization of physical quantities.
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Description
Learn about physical quantities, their classification, and measurement. Understand the concept of fundamental physical quantities and their differences from non-physical quantities.
