PHYSICS LAB REPORT REPORT SEMESTER 1 EXPERIMENT 5
NAME NO MATRIKS DATE
MUHAMMAD SYAHIR ASYRAF BIN SABRI
MS1712105109 7.8.2017
TEMS CONTENTS MARKS
TOPIC
ENERGY
OBJECTIVE
To veri! "#e $%& o 'o(ver)%*o( o +e'#%(i'%$ e(er,!
THEORY
Fro+ Hoo-e) $%& "#e )"re"'#i(, or'e F o %( e$%)*' '#or/ i) roor*o(%$ "o e"e()io(
x
%)
F=kx
&#ere k i) "#e e$%)*' or'e 'o()"%(".
T#e o"e(*%$ e(er,! )"ore/ i( "#e e$%)*' '#or/ ,ive( !
U=1/2mv 2
I % o/! o +%)) m i) %3%'#e/ "o %( e$%)*' '#or/ %(/ e"e(/) "#e $%3er ! x 4 o( re$e%)e "#e o/! &i$$ re%'# % +%i++ -i(e'*' e(er,! K .
K=1/2mv 2
&#ere v i) "#e +%i++ )ee/ o "#e +%)).
Fro+ "#e $%& o 'o()erv%*o( +e'#%(i'%$ e(er,!6"#i) +%i++ -i(e'*' e(er,! e%$) "o "#e e$%)*' o"e(*%$ e(er,!
U )"ore/ i( "#e e$%)*' '#or/6 "#%" i)
NO
NAME
1
A "ro$$e! &i"# % #oo-
2
A %ir o #o"o,%"e)
<
A *+er
A +e"re r$e
5
RANGE
SENSITI:ITY ;
;
=0;100.000000>)
0.000001)
=0.0;100.0>'+
0.1'+
A( e$%)*' '#or/
;
;
?
T&o re"or" )"%(/)
;
;
7
A )+%$$ &oo/e( $o'-
;
;
8
A r%i$
;
;
K=U
1/2mv 2=1/2kx 2
e" 0 e "#e e$o(,%*o( o "#e e$%)*' '#or/ &#e( "#e +%)) m #%(,) ree$! "o i"6 "#e( e$%)*' or'e 'o()"%(" k i) ,ive( !
k=mg/x 0
))*""e i("o e%*o( 5.5 i("o e%*o( 5.6 &e o"%i(
v 2=g/x 0(x 2 )
Evi/e("$! 6 i &e $o" % ,r%# o v 2 %,%i()" 2 6 &e &i$$ ,e" % )"r%i,#" $i(e &i"# % ,r%/ie(" o g/x 0
APPARATUS
APPARATUS
PROCEDURE
1. 2.
T#e %%r%") &%) )e" %) Fi,re 5.1. @oo/e( $o'- i) )e/ "o r%i)e o(e o "#e r%i$ )o "#%" "#e ee'" o ri'*o( i) )" 'o+e()%"e/. T#e #o"o,%"e) =CB> A %(/ B %re %rr%(,e/ %" % e/ /i)"%('e s %o" 12 '+ %%r" ro+ e%'# o"#er. CG A i) e()re $%'e/
<.
%roi+%"e$! 1'+ ro+ "#e "ro$$e! &i"# "#e e$%)*' '#or/ (o" )"re"'#e/. T#e "ro$$e! i) $$e/ "o )"re"'# "#e e$%)*' '#or/ ! %( e$o(,%*o(6 x &i"#i( "#e r%(,e o 2'+ "o 5'+. T#e "ro$$e! i) re$e%)e/ (*$ i" %))e) "#e "&o #o"o,%"e) %(/ "#e( re'or/ "#e *+e t ! "#e *+er.
.
S"e =<> ree%"e/ "&o *+e) "o o"%i( "#e %ver%,e "#e v%$e o t . T#e )ee/ o "#e "ro$$e!6 v &#ere v
5.
S"e => i) ree%"e/ or %" $e%)" ve /iere(" %)'e(/i(, v%$e) o x %(/ "%$%"e "#e re)$").
?.
A ,r%#
7.
2 %,%i()" x 2 . v T#e ,r%/ie(" o "#e ,r%# i) /e"er+i(e/.
8.
T#e "ro$$e! #%(, ree$! o("o "#e e$%)*' '#or/ %(/ "#e e$o(,%*o(6
9.
T#e ,r%/ie(" o "#e ,r%# e%$) "o "#e v%$e o
g x 0
x 0
'%$'$%"e/ i) 'o+%re/. Doe) eeri+e("%$ re)$" veri! "#e $%& o
DATA Experiment A
<.0 .0 5.0 ?.0 7.0
Ti+e6 t (0.0000 01s) t 1
v=s/t ms-1
:2 +2);1
"2
t average
0.<<97
0.<7<<
0.<5?5
0.<
0.11<<
0.09
0.<015
0.<051
0.<0<<
0.<95?
0.15?5
0.1?
0.2?50
0.2?79
0.2??
0.505
0.20<0
0.25
0.2<5
0.22<5
0.2295
0.5229
0.272
0.
0.1819
0.1950
0.1885
0.?
0.05<
0.9
=6!>
[
∑ x , ∑ v
[
1.35 1.15 , 5 5
2
n
n
]
2
]
.
i) /e"er+i(e/ o "#e e$%)*' '#or/. T#e v%$e o
'o()erv%*o( o +e'#%(i'%$ e(er,! @ri"e 'o++e(").
x ='+>
s t
2 =+2>
S0.12 + 00.1 +
)"%(/%r/ /evi%*o(4
theo −exp × 100 =¿ theo
e("roi/4
g x 0
.
=0.27+260.2<+2);2>
0.7109−0.6500 0.7109
× 100 =8.6
Gr%/ie(" ro+ "#e ,r%# i)4 0.?5
Fro+ "#eor!4
g 9.81 x 0 0.138 0.7109
DISCUSSION
In this experiment , the maximum ineti! ener"# sh$u%& 'e e(ua% t$ the e%asti! p$tentia% ener"# , )hi!h is
K E ¿ U s
* The time taen +$r +ie &i++erent a%ues $+ %en"th $+ ru''er
s , the spee& $+ the tr$%%e# is t g !a%!u%ate&* A+ter that , the the$reti!a% a%ue $+ -*./-0 is $'taine& thr$u"h the +$rmu%a $+ * A+ter +inishin" the x o !h$r& , x are re!$r&e& an& is repeate& +$r t)$ times* B# usin" the +$rmu%a $+ v =
experiment , the "raph $+ V 2 a"ainst X 2 is p%$tte& an& the resu%t "ra&ient is -*12-/* It is n$t as a!!urate t$ the the$reti!a% a%ue &ue t$ s$me err$rs , su!h as the rai%)a# ma# 'e &irt# )i th &irt an& &ust )hi!h in!reases the +ri!ti$n* This is $er!ame '# !%earin" the path)a# 'e+$re re%easin" the tr$%%e#* Besi&es that , it !$u%& 'e that the ru''er !h$r& ma# a%rea&# 'e %$$se 'e+$re the experiment starte&* The pre!auti$n taen is that an e%asti! ru''er !h$r& is use&*
CONC3USION
Base& $n the %a) $+ !$nersati$n $+ me!hani!a% ener"# , the the$reti!a% a%ue $+ -*./-0 is &erie&* The a%ue )hi!h )e hae !a%!u%ate& +r$m the &ata $+ this experiment is -*12-/ means there is a per!enta"e err$r $+ 4*15 * Yet , this experiment is sti%% !$nsi&ere& a su!!ess sin!e the %a) $+ !$nserati$n $+ me!hani!a% ener"# is $'e#e& eenth$u"h there is a sma%% per!enta"e err$r*
