The SI base unit of pressure, the pascal (Pa), is derived from fundamental SI units. It is expressed as:

\[
1 \, \text{Pa} = 1 \, \text{N/m}^2
\]

Where:
- 1 N (newton) is the SI unit of force and is defined as \( 1 \, \text{N} = 1 \, \text{kg} \cdot \text{m/s}^2 \).
- Therefore, the pascal in base units becomes:

\[
1 \, \text{Pa} = 1 \, \text{kg} \cdot \text{m}^{-1} \cdot \text{s}^{-2}
\]

This means that a pascal is equal to one kilogram per meter per second squared.

Would you like more details or have any questions?

Here are 5 related questions to explore:
1. How is the newton defined in terms of SI base units?
2. How do you convert pascals to other units of pressure, like bar or atm?
3. What is the physical significance of pressure in fluids?
4. How does the concept of pressure relate to force and area?
5. What are some common examples of pressure measurement in daily life?

**Tip:** Understanding how derived units are expressed in base SI units helps with conversions and deeper comprehension of physical concepts.

Discover the SI base unit of pressure, the pascal (Pa), and learn how it is derived from fundamental SI units. This detailed explanation includes the key formulas for converting newtons and pascals and is perfect for students in Grades 9-12.

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