SPEC 1179 Study Guide - Final Guide: Tuning Fork, Sound, Longitudinal Wave
12 Dec 2019
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Document Summary
Newton"s law of motion: first law of motion (law of inertia): a moving object will remain moving in a straight line at a constant speed. When mass or velocity increases then the momentum increases. Stiffness: degree to which an object resists being deformed. Elasticity: ability of an object to spring back to its original form. Pressure: force exerted by the collision of air molecules against the side of a container and the opposite force exerted by the container wall. Lung pressure is measured in cmh2o, as in a u-tube manometer. Sound: fluctuations or pressure in a medium which impinge on the eardrum to produce the perception of sound. The longer the tongs, the lower the sound because they vibrate slower. Longitudinal waves (sound): series of pressure disturbances resulting in compression and rarefaction of molecules. Particles move in direction parallel to the direction of the wave. Air particle movement: particles move back and forth, waves move across, causes sound to travel.
