2 examples of physical quantities
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- The measurements of physical quantities are expressed in terms of units, which are standardized values.
- For example, the length of a race, which is a physical quantity, can be expressed in meters (for sprinters) or kilometers (for long distance runners).
- Without standardized units, it would be extremely difficult for scientists to express and compare measured values in a meaningful way
- All physical quantities in the International System of Units (SI) are expressed in terms of combinations of seven fundamental physical units, which are units for: length, mass, time, electric current, temperature, amount of a substance, and luminous intensity.
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