The unit of gravity, defined as the gal, is equal to which of the following?

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Study for the Geodesy Refresher Exam. Prepare with multiple choice questions, hints, and explanations. Ace your exam with confidence!

Multiple Choice

The unit of gravity, defined as the gal, is equal to which of the following?

Explanation:
The gal is a unit of acceleration used in gravity measurements, defined as 1 centimeter per second squared. That means 1 Gal equals 0.01 meters per second squared. Since Earth’s gravity is about 9.8 m/s^2, it’s roughly 980 Gal. So the gal is expressed in centimeters per second squared, not in meters, millimeters, or kilometers per second squared. Among the given options, the one that matches is cm/s^2. For reference, 1 mm/s^2 is ten times smaller than 1 Gal, since 1 Gal equals 10 mm/s^2.

The gal is a unit of acceleration used in gravity measurements, defined as 1 centimeter per second squared. That means 1 Gal equals 0.01 meters per second squared. Since Earth’s gravity is about 9.8 m/s^2, it’s roughly 980 Gal. So the gal is expressed in centimeters per second squared, not in meters, millimeters, or kilometers per second squared. Among the given options, the one that matches is cm/s^2. For reference, 1 mm/s^2 is ten times smaller than 1 Gal, since 1 Gal equals 10 mm/s^2.

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