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37 terms

physics two vocab chapter 14

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trough
any of the low points of a wave is a
destructive interference
superposition of waves with opposite amplitudes causes
wave
any rhythmic disturbance that carries energy through matter or space
standing wave
a wave that appears to be standing still is a
mechanical wave
a wave that requires a physical medium is a
wave pulse
a single bump or disturbance that travels through a medium is a
constructive interference
superposition of waves with displacements in the same direction causes
node
an unmoving point at which destructively interfering pulses meet is a
longitudinal wave
in this wave the disturbance moves parallel to the direction of motion of the wave
antinode
a point of largest displacement caused by the constructive interference of waves is called an
crest
any of the high points of a wave is a
interference
the result of any superposition of two or more waves is
surface wave
in this kind of wave the particles move in a direction that is both parallel and perpendicular to the direction of wave motion
transverse wave
in this kind of wave the particles vibrate in a direction perpendicular to the direction of motion of the wave
normal
a line that is at a right angle to a barrier is a
energy
waves typically transmit only this
longitudinal
water waves, sound waves, and waves that travel down a spring are examples of what kind of wave?
transverse
if a wave moves in a leftward direction but the particles of the medium move up and down, the wave must be a
longitudinal and transverse
a surface wave has characteristics of what other two waves?
longitudinal
sound is an example of what kind of wave
longitudinal
fluids transmit what kind of wave?
surface
waves at the top of a lake or an ocean are examples of waht kind of wave?
transverse
energy from the sun reaches earth by means of what kind of electromagnetic waves?
transverse
waves that travel down a rope
hertz
equal to one oscillation per second
source
the speed of the wave depends only on its
more
waves with larger amplitudes transmit (less or more) energy than waves with smaller amplitudes?
true
the frequency of the wave does not depend on its medium. true or false?
low
a wave of (high or low) frequency also has a long period?
shorter
the higher the frequency of a wave is, the (longer or shorter) the period is
amplitude
a wave's maximum displacement from its position of rest
4
doubling the amplitude of a wave increases the rate of the energy transfer by a factor of
period
the time it takes for the motion of an oscillator to repeat itself in generating a wave is the
frequency
the number of complete oscillations per second
hertz
frequency is measured in what?
source
both period and frequency of a wave depend only on its what?
medium
a material that carries the energy of a mechanical wave is a