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MAPUA INSTITUTE OF TECHNOLOGY Department of Physics

E301: LINEAR EXPANSION

FLORES, Arvin Christian S.201210012 !E"2 #ro$p %

P&'12L"A(

Engr. Ericson . i!a"nahanInstr"ctor

#an"ar$ %&, %'()

ANALYSIS

SCORE:

Analysis /30

Conclusion /20

Presentation /10

TOTAL

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)his e*periment is a+o$t the concept of Linear E*pansion, -hich a +eam -i.. increase

/epen/s on the chane of the temperat$re )he p.ace -ere $sin ast.y a4ects o$r

e*periment +eca$se Linear E*pansion -i.. on.y ta5e p.ace if there is a chane of

temperat$re, +eca$se o$r p.ace is f$..y air"con/itione/, the co./ness in the room -i..

con6ict the hotness -hich the steam enerator +rins -hich a.so can possi+.y .ea/ to a

.are amo$nt of percent error

Laboratory setup for Linear Expansion

)he approach in this e*periment is to +e fami.iar -ith the concept, apparat$s an/ the

set"$p of the e*periment so that e*cessie percent error an/ fa.se /ata can +e

minimi7e/ 8irst thin -e /i/ is -e meas$re/ the 9Lo of A.$mini$m t$+e )hen -e p$t

the meta. t$+e in the e*pansion +asean/ -e attache/ the thermistor .$ at the

e*pansion +ase -ith the $se of a th$m+ scre- )he pro+.em starts is -hen -e fo$n/ the

resistance of )hermistor at Room )emperat$re an/ Initia. )emperat$re of the t$+e )his is

-here the e*terna. factor start to ta5e p.ace +eca$se -e performe/ this e*periment in a

ery air coo.e/ c.assroom After the steam enerator -as set $p, a ra -as a.so

necessary at the en/ of the t$+e so it can catch -ater that /rops in the t$+e ;hen thesteam +ean to moe, the /ia. a$e +ean to moe too As the thermistor resistance

stea/ie/, -e recor/e/ the /ata, a.so the chane in .enth -as a.so recor/e/ At error, it is my

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A.$mini$m:

=L

Lo t=

(1.25mm )(695mm) (54.75 C)

=3.28x 105

)he E*periment ?a.$e -e ot in this e*periment rea..y ae $s a .are percent error

+eca$se the e*periment -as /one in an air"con/itione/ room an/ a.so the steam /i/ not

reach +oi.in point so it contri+$tes a .are amo$nt of percent +y @$st +ein in an air"

con/itione/ room I recommen/ that if this e*periment -i.. +e /one aain +y other fe..o-

st$/ent, it sho$./ +e in a -arm room so that the percent error -i.. +e minimi7e/

CONCLUSION

In the e*periment -e hae /one, the o+@ecties has +een ans-ere/ +eca$se it

sho-s the coecient of copper t$+e is .ess than the a.$mini$m t$+e A.so it proes that

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a.$mini$m has a more chane in .enth than copper -hich can a.rea/y +e conc.$/e/

that the e*periment -as a s$ccess )he factors a4ecte/ the L in therma. e*pansion

-as a.so /etermine/ +eca$se the = error of the copper an/ a.$mini$m is ery .are

+eca$se the s$rro$n/ins -here the e*periment -as performe/ is ery co./ /$e to

+eca$se the room -as air"con/itione/ ;hich .ea/ to the t$+e /i/nt reache/ the +oi.in

point that ast.y a4ecte/ the e*perimenta. a.$es of coecient of Linear E*pansion

Some of o$r percent error came from +ein ine*perience/ of $sin the apparat$s, an/

a.so some misa.in of meas$rements ma/e in the e*periment After /oin the

e*periment I conc.$/e/ that it is on.y theoretica..y possi+.e to reach the Act$a

coecient of Linear E*pansion, -hich is impossi+.e in o$r -or./ +eca$se of reat

ino.ement of the o$tsi/e factors