# Shared Flashcard Set

## Details

Waveforms
Physics 265 Waveforms Exam 1
14
Physics
05/13/2015

Term
 What is the phase difference between the trough of a wave and the adjacent trough?
Definition
Term
 Which of the following electromagnetic waves has the longest wavelength? Infrared, X-Ray, Radio, Gamma-Ray.
Definition
Term
 Sound waves are what types of waves?
Definition
 Mechanical and Longitudinal
Term
 The principle of superposition states the displacement of the medium is the algebraic sum of the displacements due to the individual ___________?
Definition
 waves
Term
 How does the observed frequency, f(eff), compare to the rest of rest frequency, f, when a source is moving away from an observer at rest?
Definition
 f(eff) < f
Term
 The points on a standing wave that never move are called ___________.
Definition
 nodes
Term
 The spreading of waves behind an aperture is greater for wavelengths that are _________.
Definition
 longer
Term
 The speed of a wave is a property of the __________.
Definition
 medium
Term
 True or False: When wave pulses interact in a region of space, and then propagate away, the original wave pulses are unaltered.
Definition
 True.
Term
 True or False: Sound travels slower at higher temperatures than lower temperatures for a given medium.
Definition
 False; sound travels faster at higher temperatures.
Term
 For a wave pulse on a string to travel twice as fast, the string tension must be multiplied by a factor of ___________.
Definition
 4
Term
 The type of sound wave we can hear is _________.
Definition
 audible.
Term
 When a transverse wave pulse is reflected, its amplitude ___________.
Definition
 is unchanged.
Term
 True or False: Sound waves can travel through a vacuum.
Definition
 False.
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