Date
Name
ofaWave
Diagram
Usethe terms in the word b,oxto labelthe partsof a wave.
Both light and soundtraryelin rrrraves.
amplitude
wavelength
crest
equilibrium
trough
o
Match eachterm in the word box aboveto its description.
point
Thisis a measurefrom a point on one wave to the corresponding
on the next wave.
Thisisthe lowestpoint on a wave.
s
Thisisthe highestpoint on a wave.
@
Thisisthe distancea wave risesor fallsfrom its equilibrium.
o
o
!t
g
@,
Thisdescribeswhen the wave is at a rest position.
o
!
Light and Sound 87
Properties
of Waves
PROFILE
OF A \y\,{VE
soundwaves'
waterwaves,
radiowaves,
microwaves,
eiectromagnetic
waves,
lightwaves,
x-rays,
gammarays'andmore!These
aresome(butnot alli of the differentkindsoir"u.,
traveling
in ihe
worid'A waveis a rhythmicdisturbance
that.urriu, ;;A from one
another.
;i;;"
Themany
differentkindsof wavessharemanycharacteristics.
somJofthemur.'rhorn on this*uu. tr,ui;,
madeby kidsshakinga ropeup anddown.Answer
u.rn
the followingquestions
aboutwavecharacterist
MA KE
W AVES
whai is thedistance
cairedthatis represented
by the arrcwz?
Whatletteris labelingthewave,s
trough?_
Whatletteris labeiinga wave's
crest?
Thenurnberof wavesthat passthe posterper
secondis calledthe
of the waves.
-If the knot (w) travels2 metersin 1 second,we
sayit hasa _
of 2 m/s.
If the wavelengths
wereshortened,wouldthe frequencybe higher
or lower?_
Thegreatestdistancethe knot (w) traveisfrom
its restingpositionis calledthe wave,s
Whatkind of wavesarethesein the rope?_
A wavein which vibrationsfrom the first disturbance
setoff a seriesof collisionsfollowedby calm
gmptyspaces
is calleda _
wave.
1 0 . Radiationis the transferof energyby
waves.
_
1 1 . If the kidswerewobbiingthis ropeup andd.ownthrough
wouidchange.
puddinginsteadof air, ihe
12. Therapid,backand forth movementsof any object
are cailed
13. Thefrequencyof a waveis measured
with the
unit
, which is _
waveper
L4. If the wavesin the ropehavea frequency
of 2 hertz,howmanywavespassa point per
second?_
Name
TheBASIC/NoIBoring Middle CradesScience
Boak
96
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