Why is that for both very small as well as very large (in addition to ordinary) quantities, the physical measurements are usually expressed in scientific notation, with powers of ten ?

Explanation

To answer the question of why physical measurements are usually expressed in scientific notation with powers of ten for both very small and very large quantities, we can break down the explanation into clear steps:

### Step-by-Step Solution:

1. **Understanding the Problem**:
- Physical quantities can vary significantly in magnitude. Some quantities are extremely small (like the size of an atom) while others are extremely large (like the distance between galaxies).

2. **Challenges with Large and Small Numbers**:
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