Physics Unit Notes

Single dissonance is called a pulse A series of pulses is called a wave In the case of the impatient student, his disturbance was parallel to the direction of the wave itself. Also called a Longitudinal curve WAVES Wclass Aves can transmit two things O outhouse transmit vim 0 Ex. Light waves from the sun heat the earth O Can transmit information 0 Ex. Radio wave When the motion of the particles is upright to the motion of the wave, it is called a traverse wave Pointing down Acceleration downWave We construe the motion of the medium Soundwaves air Lightwaves = electromagnetic waves Stadium waves people peeing waves - water Light waves no medium Pointing up Acceleration up Without tension, there can be no traverse waves in a medium. - Do not occur inside liquids and gases can occur on surface of water though Inner core of earth has a liquid core, because traverse waves do not got through Earthquakes can unveil traverse, longitudinal, or a combination of the two. ongitudinal = co mpression, travel fast, primary (happen first) traverse = aves, secondary (happen second) - longer delay between S and P waves, marrow greater distance from the epicenter B) C) D) Crest Trough Amplitude Wavelenght oscillation one(a) complete wavelength Amplitude half the distance from crest and sports stadium Wavelength - distance of one complete cycle (Sl units = meters) Period (T) time for one wavelength to pass (Sl Units = seconds) Frequency (f) number of cycles that pass by per time separation = Cycles per second = 1 Hertz (Hz) and Ex. f=2 Hz = T=. 5 seconds Swing?Applied force at a symmetrical interval, causes you to go higher, high amplitude All object will tremble of oscillate at a certain frequence called the subjective frequency A pendulum (or swing) will swing back and forth at a natural frequency that depends only on its lenght When a system is compulsive at its natural frequency (forces applied in rhythm with the natural frequency), Physics Unit 4 Page 1 The sh orter the stick, the higher the instinctive frequency. natural frequency), the oscillations will get bigger. This s termed resonance. If two things have the resembling natural frequency, And you hit one, the second will also begin to quiver Energy Transfer