physics unit two-mechanical waves

wavelength

the distance between two troughs or two crests

amplitude

the distance (vertically) between a trough and a crest

period

how many cycles occur in one second (time/cycles or 1/f) measured in seconds

frequency

how many times something happens in a set time (1/period or velocity*wavelength) measured in Hz

node

a point in a standing wave with the least amount of movement up and down (found between bumps)

antinode

the troughs and crests of a standing wave, move up and down the most

velocity of sound in air

340 at 0ºC, 343 at room temp

velocity

the speed of something (v=f*wavelength) measured in m/s, convert wavelength to m by dividing by 100

loudness

how we percieved amplitude, measured in dB, +10dB seems to double, -10dB seems to halve