GRADE 11 PHYSICAL SCIENCES _ - Pearson High School
GRADE 11 PHYSICAL SCIENCES _ - Pearson High School
GRADE 11 PHYSICAL SCIENCES _ - Pearson High School
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FHYSTCAL scrENcEs - FrESl tAPl!<br />
,,* ris ." r<br />
After lhe An Frcnc€ Fl€ht447 plene wenl m ssrnc overthe Ar<br />
'nr '<br />
Ocean on l<br />
:-;; i;; ;"ii""" '-.""""."' ' r'-. o d" e eD'o,o ri o I e ird Ldo'<br />
ofIh€ plane andthe so-caled bLack box<br />
Th€submarnedivedloadeplholl Or5mbelowthesurfaceortheocean Apulse<br />
*ji !""ii.. rn" i,t-.i"a. soNAR nstruh€nrs and it €flecr€d ofi rhe wrcckae€<br />
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*" The pu s€ relumed 4 30 s aner I<br />
il::;J,l;:i:;;'.li;:;;:;"r rn"ii.r"i r" rr,"<br />
"** " I s-:z ' "'<br />
'10I What s |re d stance from the submanne b lhe wreckaqe olihe plane (4)<br />
lO 2 Whalreihe d€pih ol rre o.ean alrhatspe' l'' ponL)<br />
(r)<br />
t5l<br />
Cons derthe lolow ng q€ph concem nq the speed ol sound n dLfferent hediums:<br />
speed ofsou.d in difier€nt medilms<br />
llj::99<br />
<strong>11</strong>2<br />
ln whch phase does solnd lravellhe fastest<br />
c ve an expLanauon lor your answer n QUESaloN <strong>11</strong> 1<br />
Thc varde oflhe sDeed ol sound n seawater is the va ue al0 "c Lf (<br />
;e lound thal tlre t€mperalur€ ofthe seawlter s 17'C how wDuld lh€<br />
spe€d ol sound in lhe seawaler change<br />
I'h..SE I'OM INCREAS€S DECREASES' STAYS THE SAME) (2)<br />
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