waves in a solid

Cards (7)

what apparatus is used?
a string with one end attached to a vibration generator and the other end attached to a hanging mass. the mass keeps the string taut. the vibration generator is attached to a signal generator.
what doos the signal generator allow us to do?
change the frequency of vibration of the string
what wave appears?
a standing wave
what do we need to measure?
the wavelength of the standing wave. we do this by measuring the total length of the standing wave from the wooden bridge to the vibration generator.
how do we calculate the speed of the wave?
the wave equation
what happens if we increase the frequency?
the wave increases to 3 half wave lengths
how do we calculate the speed of a 3 half wavelength?
divide the totally length by the number of half wave lengths, then divide by 2