Section 14.3
Wave Behavior
Practice Test
1.
__________ is the point of the largest displacement where two waves meet.
a.
An antinode
b.
A node
c.
A crest
d.
A period
Hint
2.
Waves become inverted if they reflect off a medium that is __________ than the initial medium.
a.
less dense
b.
more dense
c.
more gaseous
d.
softer
Hint
3.
A __________ wave bounces off a boundary.
a.
surface
b.
reflected
c.
transverse
d.
incident
Hint
4.
When a wave pulse strikes a wall, it reflects back and is __________.
a.
changed from compressional to transverse
b.
reduced to zero
c.
inverted
d.
amplified
Hint
5.
The superposition of waves with equal but opposite amplitueds causes __________.
a.
consonance
b.
destructive interference
c.
dissidence
d.
constructive interference
Hint
6.
The principle of superposition states that __________.
a.
the energy of a wave depends on its position
b.
two or more waves can combine to form a new wave
c.
waves can never combine
d.
waves from different mediums can combine to form a new wave
Hint
7.
A wave that reflects off a flat surface will reflect at __________.
a.
a right angle to the surface
b.
a different angle from which it struck the surface
c.
the same angle at which it struck the surface
d.
an angle of zero
Hint
8.
A standing wave appears to be __________.
a.
fluctuating
b.
standing still
c.
moving very fast
d.
moving very slowly
Hint
9.
A(n) __________ is a line perpendicular to a reflective surface.
a.
normal
b.
incidence
c.
reflection
d.
angle
Hint
10.
__________ is the change in direction of a wave when it intersects a boundary between two different media.
a.
Refraction
b.
Diffraction
c.
Diffusion
d.
Reflection
Hint
11.
When a continuous wave meets a boundary that transmits the wave at a lower speed, the wavelength __________.
a.
increases
b.
interferes with itself
c.
decreases
d.
becomes negative
Hint
