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PERATURAN PEMARKAHAN
FIZIK
SOALAN PEP AKHIR TAHUN TING 4 (SBP) 2010
MARKING SCHEME PAPER 1
1 C 14 C 27 B 40 D
2 D 15 B 28 D 41 B
3 D 16 B 29 D 42 D
4 C 17 A 30 A 43 D
5 C 18 B 31 A 44 A
6 A 19 C 32 A 45 B
7 C 20 D 33 C 46 A8 C 21 D 34 B 47 A
9 D 22 B 35 B 48 D
10 B 23 C 36 C 49 D
11 C 24 D 37 A 50 B
12 B 25 B 38 C
13 D 26 B 39 B
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MARKING SCHEME PAPER 2
NO MARKING CRITERIA MARK
SUB TOTAL
QUESTION 1
1 (a) Electric current 1
4
(b) 0 - 0.5 A 1
(c) 1
(d) !e "#$iti#n #% t!e e&e 'u$t be "er"endicular t# t!e $cale #% t!e
a''eter
1
QUESTION 2
2. (a)(i) Dra air re$i$tance 1
5
(ii) Enine t!ru$t * +#rce , 1
(b) (i) + * 3200 2000 * 1200 1
(ii) + * 'a1200 * 1000a
a * 1.2 '$-21
1
QUESTION 3
3. (a) /raitati#nal %#rce actin #n an #bect. 1
6
(b) De"t! den$it& accelerati#n due t# rait& 1
(c) (i) ei!t #% ater di$"laced * * 1000 1.5 10 * 15000
11
(ii) * B#u&ant %#rce * 125000 15000 * 1100001
11
QUESTION 4
4.(a) (i) Deree #% !#tne$$ #% a b#d& 1
7
(ii) /el i$ c##ler t!an t!e !ead eat %l# %r#' !ead t# t!e el
# t!e !ead ill be c##ler t!e el ill ain !eat (ar'er)
11
1
(b) * 'c : * 30 4.3 (36 -15)
* 2709 ;
11
1
QUESTION 5
5 (a) +allin it! accelerati#n due rait& %all due t# t!e raitati#nal 1
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%#rce
8
(b) (i) +#rce in diara' 5.1 i$ reater 1
(ii) i'e #% i'"act in diara' 5.1 i$ $!#rter 1
(iii) A$ t!e ti'e #% i'"act i$ decrea$e t!e %#rce durin c#lli$i#n increa$e. 1
(i) lace $#%t 'aterial #n $ur%ace A
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12
(b) (i) Ela$tic "#tential ener& 1
(ii) Ela$tic "#tential ener&
* F +
* F (60)(8) F (60)(0.08)* 240 c' 2.4 ; 2.4 '
1
11
(c) (i) 80 1 (ii) -"rin >
-"rin
1
1
(iii) "rin
#re $en$itie$'aller %#rce c#n$tant
1
1
QUESTION !
9. (a) Di$tance diided b& ti'e 1
20
(b) 1. !e t#tal 'a$$ #% l#rr& in Diara' 9.1 i$ l#er
2. !e di$tance taen %#r t!e l#rr& t# $t#" in Diara' 9.1 i$ $!#rter3. !e ti'e taen %#r t!e l#rr& t# $t#" in Diara' 9.1 i$ $!#rter
4. A$ t!e t#tal 'a$$ #% t!e l#rrie$ increa$e t!e ti'e taen t# $t#"increa$e.
5. A$ t!e t#tal 'a$$ #% t!e l#rr& increa$e t!e inertia #% t!e l#rr& al$#
increa$e.
5
(c) (i) !en t!e car '#e$ t!e "a$$ener al$# '#e at t!e $a'e $"eed #%t!e car
!en t!e brae$ i$ a""lied t!e car $t#" but t!e "a$$ener $till '#e
%#rard due t# it$ inertia
2
(ii) G$e $eat belt air ba
>reent t!e "a$$ener bein t!r#n %#rard 2
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(d) 10
QUESTION 10
10 (a)
(i)
!e te'"erature in !ic! a $#lid $ub$tance c!ane t# li=uid at
at'#$"!eric "re$$ure
1
20
(ii) 1. !e 'a$$ #% $ub$tance in Diara' 10.1 H in Diara' 10.2
2. i'e taen t# reac! t!e 'eltin "#int in Diara' 10.1 H in
Diara' 10.2
3. i'e taen b& t!e $ub$tance t# c!ane int# li=uid c#'"letel& in
Diara' 10.1 H in Diara' 10.2
4. !e reater t!e 'a$$ t!e l#ner t!e ti'e taen b& t!e $ub$tance
t# c!ane int# li=uid c#'"letel&.
5. !e reater t!e 'a$$ t!e reater t!e latent !eat #% %u$i#n
ab$#rbed.
5
(b) 1.
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li=uid
i! b#ilin "#int #% li=uid #t ea$il& c!ane int# a"#ur
@# rate #% ru$tin 'aterial @#n la$tin n#t ea$il& ru$t
tr#n 'aterial #t ea$il& brea$
!e $iIe #% t!e %an i$ bi # bl# lare a'#unt #% !eat
QUESTION 1111. (a)
+#rce "er unit area1
20
(b) >re$$ure de"end$ #n t!e $ur%ace area in c#ntact
!e $t#ne !a$ a $'aller $ur%ace area
!e "re$$ure eerted t#ard$ t!e %eet in t!e c#ntact area i$ biera$ "re$$ure i$ iner$el& "r#"#rti#nal t# $ur%ace area in c#ntact
1
1
11
(c) (i) 750 10 7500 1
(ii)
+ * 1 500 '-2
1
1
(iii) A1!1 * A2!20.5 ( 50 10-2) * 2.5 !2!2 * 0.1 ' 10 c'
1
1
C!aracteri$tic$ E"lanati#n
&"e #% %luid i$ #il inc#'"re$$ible d#e$ n#t ea"#rate
ea$il& n# air bubble$i! b#ilin "#int d#e$ n#t c!ane t# a$e#u$ $tate
ea$il& d#e$ n#t ea"#rate ea$il&
$ur%ace area #% "i$t#n A
bi "i$t#n B $'all
# "r#duce a !i! "re$$ure at "edal
brae $'all %#rce u$ed
# "r#duce bi %#rce #n t!e di$c
aterial %#r %luidtran$'i$$i#n "i"e 'ade #%
$teel
$tr#n d#e$ n#t ru$t ea$il& d#e$n#t brea ea$il&
< i$ c!#$en &"e #% %luid i$ #il i! b#ilin
"#int $ur%ace area #% "i$t#n A bi"i$t#n B $'all aterial %#r %luid
tran$'i$$i#n "i"e 'ade #% $teel
10
QUESTION 12
12. (a) Arc!i'ede$ >rinci"le 1
(b) 1. #tal den$it& #% $!i" "den$it& #% ater 1
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2. Bu#&ant +#rce ##tal ei!t #% $!i" 1
20
(c) (i) # en$ure t!e $!i" ill n#t be #erl#ad en$ure t!e $a%et& #% $!i" 1
(ii) # enable t!e $!i" t# trael $a%el& in di%%erent den$itie$ #% $ea ater 1
(d )
10
(e) (i) #lu'e #% ater di$"laced * #lu'e #% ##den bl#c
* '
*800
3
* 3.75 10-3'3
1
1
(ii) ei!t #% l#ad J ei!t #% ##den bl#c * ei!t #% ater
di$"laced
ei!t #% l#ad J ei!t #% ##den bl#c * ei!t #% l#ad J (3 10) * 1000 3.75 10-3 10
ei!t #% l#ad J (3 10) * 37.5
ei!t #% l#ad * 37.5 30
* 7.5 a$$ #% l#ad * 0.75
1
11
MARKING SCHEME PAPER 3
Soalan 1
Markah
C$%&%'&*+*'+ R%+,-
trea'lined $!a"e # reduce ater re$i$tance
i! $trent! #% 'etal # it!$tand !i! ater "re$$ure
ide ba$e cr#$$ $ecti#n
area
# t!at $!i" can %l#at"reent %r#'
#erturn $!i" '#re $table $!i"
n#t $in dee"er
i! #lu'e #% air $"ace
in t!e $!i"
>r#duce air bu#&ant %#rce $!i" can
%l#at
tructure > trea'lined $!a"e i! $trent! #%
'etal ide ba$e cr#$$ $ecti#n area
i! #lu'e #% air $"ace in t!e $!i"
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1 1 (a)(i)
1 State the manipulated variable correctly Mass/m//slotted weight//Jisim
1 (ii)
1 State the responding variable correctly extension
1 (iii)
1 State the constant variable correctly Length of spring//stiffness//spring constant
1 (b)(i) 1 Able to state the value of lo 7!
2 (b)(ii) 2 Able to state the value of li 7"#"!#1!$#111#1$$ (without unit) if % & ' values are correct & give one mr ()
f * + (all values are correct& give $ mr ()
2 (b)(iii)
$ Able to state the value of l !"#$!#%$#'1#+$ (without unit) accept, ecf Mr 1 - for correct calculation Mr $ - for consistenc. (value of liand l 1 dp# on there own)
2 1(c) $ Able to tabulate m, liand l Mr 1 - uantities m# liand lshown in heading Mr $ - 0nits g# cmand cmshown in heading
m / g li/ cm l/ cm
+! 7" !"
1!! "! $!
1+! 1!$ %$
$!! 111 '1
$+! 1$$ +$
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5 1 (d) + Able to draw a complete graph of l against mic base on the following aspects,
A - show 2 on 3&axis and m on the 4&axis & ()
5 - state the units of variables correctl. & ()
6 - 5oth axes are mared with uniform(even) scale & ()
- All five points are plotted correctl. given $ (tic) & ()
( % & ' points are plotted correctl. given 1 (tic))
8 & best straight line is drawn & () 9ote, mesti imbang minimum % titi Mesti ecerunan positif: & show the minimum si;e of graph & ()
(at least + x ' big suare counted from the origin until the furthest point/firstpoint plotted to fith plotted point)
score :
9umber of m
l increase linearl. m ?ia garislurus tida men.entuh asalan
Q.+*,- 2
S'*,- M%&/ A-+&
2(a)
2(b) (i)
2(b)(ii )
2(c)
2(d)(i )
2(d)(ii)
1
2
1
2
3
4
1
1
2
1
1
S$, ,- $ &%$
S% $ %. ,Patm ',&&'
1.0 105'-2
&% $ &*%- ,- $ &%$
('ini'u' 8c' 8c')
S$, $ +.8+*.*,- ',&&'
C,&&' %-+&
K8.4 10
3
- 8.7 10
3
L
C,&&' .-*9
'-3
C,&&' %-+&
K1000 - 1050 L
S$, ,- $ &%$
S% $ %. *$ $ ',&&' .-*1.043 105'-2
S% $ '$%-+ ',&&'k ill increa$e
G* $ ',&&' :%-%*,-
!e "re$$ure eerted b& t!e li=uid increa$e$
2
4
1
2
1
1
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2(e) 1S% $ &'%.*,- ',&&'
E&e$ i$ "er"endicular t# t!e $cale #% readin a$ t# a#id "aralla
err#r D# re"eated readin$ and %ind t!e aerae alue a$ t#
increa$e t!e accurac&
1
T,% 12
Q.+*,- 3
1 3(a) 1 ;&* % +.*%8 *-&-'
!e $ur%ace area #% c#ntact a%%ect$ t!e "re$$ure
1 (b) 1 ;&* % +.*%8 $,$+*+
!e reater t!e $ur%ace area #% c#ntact t!e $'aller t!e "re$$ure
10 (c) (i) 1 S% $ %*< , $ :&*re$$ure
3 S% $ *:= %&*%8
+#rce
(iii) 4 S% $ *+ , %%&%.+ %-=
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NO MARKING CRITERIA
MARK
SUB TOTA
L
4
( a) S% % +.*%8 *-&-'!e 'a$$ #lu'e a%%ect$ t!e ri$e in te'"erature te'"erature 1 1
(b) S% % &%- $,$+*+
!e reater t!e 'a$$ #lu'e t!e $'aller t!e ri$e in te'"erature
1 1
(c) +'&*8 % ',
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