If three freight cars pass an observer every second
and each freight car is 12 meters long, what is the speed of the
freight train?
If three waves pass an observer every second and each
wave has a wavelength of 12 cm, what is the speed of the wave?
At room temperature the speed of sound is about 345
m/s. What is the wavelength of a sound that has a frequency of
345 Hz?
At room temperature the speed of sound is about 345
m/s. What is the wavelength of a middle C that has a frequency
of 262 Hz?
When a violin string is bowed, standing waves may be
caused or excited. If the part of the string that can vibrate
is 0.60 meters long, what are possible wavelengths for those standing
waves?
When a guitar string is plucked, standing waves may
be caused or excited. If the part of the string that can vibrate
is 0.80 meters long, what are possible wavelengths for those standing
waves?
Standing waves, with a single loop, are present on
a rope when one end is vibrated at 120 Hz? What frequency is
necessary to excite standing waves with two loops on the rope?
What frequency is necessary to excite standing waves with three
loops on the rope?
Standing waves, with two loops, are present on a rope
when one end is vibrated at 150 Hz? What frequency is necessary
to excite standing waves with a single loop on the rope? What
frequency is necessary to excite standing waves with three loops
on the rope?
