Physics Unit Notes

Single overthrow is called a pulse A series of pulses is called a tremble In the case of the impatient student, his disturbance was parallel to the direction of the wave itself. likewise called a Longitudinal Wave WAVES Waves can transmit two things O Can transmit energy 0 Ex. Light waves from the sun instigate the earth O Can transmit information 0 Ex. wireless wave When the motion of the particles is perpendicular to the motion of the wave, it is called a traverse wave Pointing down Acceleration downWave We see the motion of the metier Soundwaves air Lightwaves = electromagnetic waves Stadium waves people Water waves -> water Light waves no medium Pointing up Acceleration up Without tension, there can be no traverse waves in a medium. -> Do non occur in spite of appearance liquids and gases can occur on surface of water though knowledgeable core of earth has a liquid core, because traverse waves do not got through Earthquakes can produce traverse, longitudinal, or a co mbination of the two. ongitudinal = compression, live on fast, primary (happen first) traverse = aves, secondary (happen second) -> longer delay in the midst of S and P waves, means greater distance from the epicenter B) C) D) vizor Trough Amplitude Wavelenght Cycle one complete wavelength Amplitude one-half the distance from crest and trough Wavelength -> distance of one complete turn (Sl units = meters) Period (T) time for one wavelength to follow through (Sl Units = seconds) Frequency (f) number of cycles that pass by per time interval = Cycles per second = 1 Hertz (Hz) and Ex. f=2 Hz = T=. 5 seconds Swing?Applied pierce at a regular interval, causes you to go higher, high amplitude alone object lead vibrate of oscillate at a definite frequency called the natural frequency A pendulum (or swing) will swing stake and forth at a natural frequency that depends only on its lenght When a system is driven at its natural frequency (forces utilise in rhythm with the natural frequency), Physics Unit 4 scalawag 1 The shorter the stick, the higher the Natural 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 also begin to vibrate Energy Transfer