AFOQT Practice Test

The correct choice is the force known as gravity. Gravity is a natural phenomenon by which all things with mass are brought toward one another. Specifically, it is the attraction between two masses, such as the Earth and an object resting on its surface. This force is responsible for the weight of objects and governs the movement of celestial bodies, such as planets and stars, as they interact with each other in space.

Gravity is essential for life as we know it, as it keeps objects grounded, influences tides, and plays a crucial role in various physical processes. Its strength varies with the distance between the two masses involved: the closer they are, the stronger the gravitational attraction.

The other forces mentioned, such as friction, tension, and buoyant force, describe different physical interactions. Friction is the resistance encountered when two surfaces slide against each other. Tension refers to the force exerted along a string, rope, or cable when it is pulled tight. Buoyant force is the upward force experienced by an object submerged in a fluid, counteracting the force of gravity. Each of these forces has its unique properties and applications, but they do not represent the mass-to-mass attraction described by gravity.