Natural Science CLEP Prep Practice Exam

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What is the SI unit of speed?

  1. Feet per second

  2. Miles per hour

  3. Meters per second

  4. Kilometers per hour

The correct answer is: Meters per second

Meters per second (m/s) is the SI unit of speed, representing the distance an object travels in meters divided by the time it takes in seconds. Option A, feet per second, and Option B, miles per hour, are not SI units and are commonly used in the United States. Option D, kilometers per hour, may be a common unit of speed, but it is not part of the SI unit system.

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