53 terms

# Abeka Physics Chapter 16

This set covers A Beka Book Physics Chapter 16: "Waves" (pages 236-251).

#### Terms in this set (...)

transverse waves
term for waves that travel along a rope
perpendicular
In a transverse waves, the displacement and wave motion are ______ to each other.
wave pulse
term for a moving disturbance caused by jerking one end of a rope up slightly and then down again
wave
term for two opposite pulses in succession
wave train
term for a series of waves
crest
term for the highest point of displacement of a wave
equilibrium
term for the position of no net change
elastic medium
term for any medium that, when distorted, tends to recover its orginal arrangement of particles
elastic
In general, a wave can travel through any ____ medium.
energy
In general, a wave pulse or wave transports ____ rather than matter.
simple harmonic motion
term for oscillation due to a restorative force that is proportional to the displacement from a central, or equilibrium, position
trough
term for the lowest point of displacement of a wave
sinusoidal
The waveform generated by a harmonic oscillator is _____; that is, it is identical in form to the graph of the equation y = sin θ
period
term for a wave train in which the same wave form appears at regular intervals along the path of the train
frequency
term for the number of waves that pass a given point per unit time in any periodic wave train
period
term for the time required for a single wave to pass a given point
speed
term for a wave train's linear advance per unit time
crest
term for a peak of a wave
wavelength
term for the distance from one crest to the next, or from one trough to the next, or from any point on a wave to the corresponding point on the next wave
one-dimensional wave
term for a wave that follows a straight line, such as one that moves along a rope
interface
term for the boundary between water and air to which a wave is confined
two-dimensional wave
term for a wave that widens but does not deepen
three-dimensional wave
term for a wave that travels outward in all directions away from the source
a water wave
example of a two-dimensional wave
sound
example of a three-dimensional wave
circular wave
term for the type of wave that is created when a stone is dropped into a still pond
wavefront
term for a circle drawn through all points having the same displacement in the same circular wave
ray
term for an arrow indicating the direction of wave motion
straight wave
term for a wave with a circular wavefront that has very little curvature
spherical wave
term for a wave that travels three-dimensionally outward from a source
plane wave
term for a wave with a spherical wavefront that has very little curvature
compression pulse
term for a pulse that travels in the direction of compression
rarefaction pulse
term for a pulse that travels in the direction that a spring is stretched
medium
term for particles that carry energy
normal
term for the line perpendicular to a surface
angle of incidence
term for the angle between the incoming direction of a wave and the normal of the barrier
reflection
term for the turning back of wave motion at an interface between media
law of reflection
law that says that the angle of incidence and the angle of reflection are equal
echo
term for a sound that is heard later than sound directly from the source
sonar
term for the use of sound waves to judge distances under water or to locate submerged objects
refraction
term for the change in direction after two- or three-dimensional waves pass obliquely in to a region where they either speed up or slow down
diffraction
term for the spreading out of a wave after it passes through a narrow opening
principle of superposition
the principle that states that when two or more waves are traveling simultaneously through the same point in a medium, the displacement of any particle at that point is the algebraic sum of the displacements that would be caused by the waves separately
composite wave train
term for the wave train produced by superposition of different wave trains
constructive interference
term for greater displacement as a result of superposition
destructive interference
term for smaller displacement as a result of superposition
complete
If the net displacement of a particle under the competing influence of two or more pulses is zero, the effect is called _____ destructive interference.
node
term for any point where the medium remains undisturbed because of wave interference
antinode
term for any point where the medium moves with the combined energy of two wave trains
loop
term for the portion of a wave between any two consecutive nodes
envelope of oscillation
term for the outline of maximum displacement
standing wave train
term for the oscillation of a wave with nodes and antinodes caused by wave reflection
standing wave
term for the motion of a single loop