Gravity: The force of attraction of the earth on an object. The direction is downward relative to the earth, and it decreases with elevation or altitude away from the earth's surface.

 

Related Words

Gravity: The force of attraction of the earth on an object. The direction is downward relative to the earth, and it decreases with elevation or altitude away from the earth's surface.

Gravity Anomaly: The value of gravity left after subtracting from a gravity measurement the reference value based on latitude, and possibly the free-air and Bouguer corrections.

Specific Gravity: The mass of a unit volume of a substance relative to the mass of a unit volume of water. Temperature must be specified when reporting specific gravities, since the density of the substance a . . . View Full Definition

Gravity Survey: The measurement of gravity at regularly spaced grid points with repetitions to control instrument drift.

Gravity Wave: A wave for which the restoring force is gravity.

Center Of Gravity (Cg): The heaviest part of a bowling ball. The CG is signified by a dye mark placed on the ball by the manufacturer designating the center of the weight mass relative to the top of the ball.

Density Current: A gravity-driven flow of dense water down an underwater slope. The increased density of the water is a result of a temperature difference, increased salinity or suspended sediment load.

Erosion: The movement of soil or rock from one area to another by the action of the sea, running water, moving ice, precipitation, or wind.

Glacier: A thick mass of ice that forms on land from an accumulation and recrystallization of snow significant enough to persist through the summer and grow year by year. There are two basic types of . . . View Full Definition

Earthflow: A detached mass of soil that moves downslope over a curved failure surface under the influence of gravity. An earthflow is more complex than a slump: it has a higher moisture content and the . . . View Full Definition