53 True/False questions

interface → term for the boundary between water and air to which a wave is confined

a water wave → term for a wave with a spherical wavefront that has very little curvature

speed → example of a threedimensional wave

straight wave → term for the motion of a single loop

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.

trough → term for the lowest point of displacement of a wave

sound → term for a wave train's linear advance per unit time

spherical wave → term for a wave that travels threedimensionally outward from a source

antinode → term for any point where the medium remains undisturbed because of wave interference

crest → term for a wave train's linear advance per unit time

composite wave train → term for the oscillation of a wave with nodes and antinodes caused by wave reflection

wave pulse → term for a circle drawn through all points having the same displacement in the same circular 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

constructive interference → term for greater displacement as a result of superposition

plane wave → term for a wave with a spherical wavefront that has very little curvature

normal → term for the line perpendicular to a surface

twodimensional wave → term for a wave that widens but does not deepen

period → term for a wave train's linear advance per unit time

compression pulse → term for a pulse that travels in the direction that a spring is stretched

principle of superposition → term for the outline of maximum displacement

destructive interference → term for smaller displacement as a result of superposition

diffraction → term for the turning back of wave motion at an interface between media

medium → term for the time required for a single wave to pass a given point

wavefront → term for a circle drawn through all points having the same displacement in the same circular wave

reflection → term for the change in direction after two or threedimensional waves pass obliquely in to a region where they either speed up or slow down

rarefaction pulse → term for a pulse that travels in the direction that a spring is stretched

envelope of oscillation → term for the outline of maximum displacement

elastic medium → In general, a wave can travel through any ____ medium.

echo → term for a wave train in which the same wave form appears at regular intervals along the path of the train

threedimensional wave → term for a wave that follows a straight line, such as one that moves along a rope

perpendicular → term for particles that carry energy

ray → term for two opposite pulses in succession

period → term for a wave train in which the same wave form appears at regular intervals along the path of the train

elastic → term for the highest point of displacement of a wave

law of reflection → term for the turning back of wave motion at an interface between media

energy → In general, a wave pulse or wave transports ____ rather than matter.

angle of incidence → term for the angle between the incoming direction of a wave and the normal of the barrier

wave train → term for a circle drawn through all points having the same displacement in the same circular wave

onedimensional wave → term for a wave that follows a straight line, such as one that moves along a rope

sinusoidal → term for the line perpendicular to a surface

transverse waves → term for a wave with a spherical wavefront that has very little curvature

loop → term for any point where the medium remains undisturbed because of wave interference

wave → term for any point where the medium remains undisturbed because of wave interference

frequency → In general, a wave pulse or wave transports ____ rather than matter.

standing wave train → term for the oscillation of a wave with nodes and antinodes caused by wave reflection

standing wave → term for a wave with a circular wavefront that has very little curvature

sonar → term for the use of sound waves to judge distances under water or to locate submerged objects

simple harmonic motion → term for oscillation due to a restorative force that is proportional to the displacement from a central, or equilibrium, position

crest → term for an arrow indicating the direction of wave motion

equilibrium → term for particles that carry energy

refraction → term for the change in direction after two or threedimensional waves pass obliquely in to a region where they either speed up or slow down

circular wave → term for the type of wave that is created when a stone is dropped into a still pond

node → term for two opposite pulses in succession