Physics Unit Notes

Single disturbance is called a pulse A series of pulses is called a riffle In the case of the zealous student, his disturbance was parallel to the direction of the wave itself. Also called a Longitudinal agitate WAVES Waves ignore transmit two things O Can transmit energy 0 Ex. Light waves from the sun heat the macrocosm O Can transmit learning 0 Ex. Radio wave When the exercise of the particles is perpendicular to the motion of the wave, it is called a dawn wave Pointing down Acceleration downWave We test the motion of the medium Soundwaves air Lightwaves = electromagnetic waves Stadium waves people Water waves - body of water Light waves no medium Pointing up Acceleration up Without tension, there can be no penetrate waves in a medium. - Do not devolve inside silver-tongueds and gases can occur on surface of water though midland core of earth has a liquid core, because traverse waves do not got through Earthquakes can produce traverse, longitudinal, or a combination of the two. ongitudinal = compression, travel fast, primary (happen first) traverse = aves, secondary (happen second) - longer last out between S and P waves, heart and soul greater outdo from the epicenter B) C) D) treetop Trough Amplitude Wavelenght Cycle virtuoso complete wavelength Amplitude half the distance from crest and trough Wavelength - distance of one(a) complete cycle (Sl units = meters) Period (T) clipping for one wavelength to pass (Sl Units = seconds) Frequency (f) frame of cycles that pass by per time breakup = Cycles per second = 1 Hertz (Hz) and Ex. f=2 Hz = T=. 5 seconds Swing?Applied force at a regular interval, causes you to go grittyer, high amplitude All object volition vibrate of oscillate at a certain frequence called the vivid frequency A pendulum (or swing) will swing pricker and forth at a native frequency that depends only on its lenght When a system is driven at its immanent frequency (forces applied in round with the natural frequency) , Physics Unit 4 Page 1 The shorter the stick, the higher the earthy frequency. natural frequency), the oscillations will get bigger. This s termed resonance. If two things have the same natural frequency, And you hit one, the second will in any case begin to vibrate Energy transpose