GEOL 1304 Lecture Notes - Lecture 6: Centripetal Force, Hydrostatic Equilibrium, Viscosity
Document Summary
Wind & weather: a force is a push or pull on an object; it has both magnitude and direction. The magnitude is read from a weight scale and the direction of that force is always _____ because it is the force of attraction between your mass and the mass of. Earth: downward, upward, the pressure gradient force arises from a change in air pressure with distance. This force accelerates air away from regions of higher air pressure and toward regions of lower air pressure. The pressure gradient force is strongest where isobars are: farthest apart, closest together, because earth is rotating, horizontal winds everywhere except at the equator are deflected to the right or left relative to earth"s surface. This so-called coriolis effect arises because the air is moving over a surface which itself is continually turning because of earth"s rotation.
