Lesson 0 sections A and B; Lesson 2 (all)
equilibrium position- resting position, when the object is not moving
forced vibration- force which sets something into motion Damping- loss of vibration restoring force- force that recovers the vibration periodic motion- repeating motion Frequency- how often the force occurs Period- time it takes to complete a cycle Amplitude- maximum displacement Crest- point on the medium that exhibits the maximum amount of positive or upward displacement from the rest position. Trough- maximum amount of downwards displacement Wavelength- length of one complete wave cycle Hertz (the unit, not the man)- unit for frequency --> 1H is equal to 1 cycle/second |