wave tranfers (frequency - number of waves that pass a fixed point in a…
y - number of waves that pass a fixed point in a given amount of time.
- increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move toward (or away from) each other.
audible hearing range-commonly stated range of human hearing
ultrasonic( more than 20,000 Hz
infrasonic( less that 20 Hz)
intensity- the power transferred per unit area,
wave speed- speed at which a wave travels.
wavelength - distance between successive crests of a wave
the points that undergo the maximum displacement during each vibrational cycle
- point along a standing wave where the wave has minimum amplitude
mechanical waves- need medium
longitudinal waves - waves go left to right
sound waves - wave produced by objects that are vibrating. :
- unit for sound waves
- he return of light or sound waves from a surface.
-bending of light as it passes around the edge of an object.
-the change in direction of a wave, caused by the change in the wave's speed.
transverse waves- waves go up and down
standing waves- vibration of a system in which some particular points remain fixed
- phenomenon in which a small-amplitude driving force could produce large-amplitude motion.
- frequency of an oscillation or wave.
electromagnetic waves- doesn't need a medium to travel
interference- combination of two or more electromagnetic waveforms to form a resultant wave in which the displacement is either reinforced or canceled.
interference of two waves of equal frequency and opposite phase, resulting in their cancellation
If the amplitudes of two waves have the same sign they will add together to form a wave with a larger amplitude.
Amplitude - the maximum extent of a vibration or oscillation