1.1 cooling rate and area ada format laporan.doc

7/26/2019 1.1 cooling rate and area Ada format laporan.doc

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No 1 How does the surface area affect the rate of cooling

Bagaimana luas permukaan- mempengaruhi kadar -penyejukan--

Topic : Scientific inestigation !

ProblemEn Izzat ,Hafzul dan En Redzuan duduk di kedai kopi Bung Hassan. Mereka mendapatiair minuman mereka sangat panas. Mereka berfkir cara untuk sejukkan minumanmereka dengan cepat. Bekas yang luas atau bekas yang sempit lebih cepat sejuk.ugas anda ! tuliskan laporan eksperimen menjelaskan perkara diatas.

Aims

Apparatus

Materials

Procedure and Observations". #et up the apparatus as sho$n in

%ig."." as &ollo$s'(.).

Questions

1. Name the measuring instrument that is used to measure (a) temperature. (b) time.

................................................. ................................................................

2. Identify the problem for this activity.[*rite the aim of e!periment"

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#. Name the variable in this investigation. (a) $anipulated % &&&&&&&&&&&&&&&&&&&&&&&&&&&&&

(b) 'esponsed %&&&&&&&&&&&&&&&&&&&&&&&&&&&&&

(c i!ed % &&&&&&&&&&&&&&&&&&&&&&&&&&&&&

. hat is the hypothesis that is tested in this activity[* rite the relationship bet+een manipulate and respond variable"

...........................................................................................................................

,. -abulate your results.

. hat is the conclusion of this scientific investigation

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Name / 00000000000000000000000.... lass / 0000..ate / 0013 4anuari 255600000

REPORTTopic Scientific inestigationAim o study ho$ the sur&ace area o& li*uid in+uences its rate o& cooling. K1PP1

Identifyingproblem

Ho$ does the sur&ace area o& li*uid in+uences its rate o& cooling.

Hypothesis

he larger the eposed sur&ace area o& a li*uid the higher is the rate o&cooling.

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Variables (a) $anipulated % 7urface area e!posed

(b) 'esponsed % 'ate of cooling 8 temperature of +ater after , minutes (c i!ed % 9olume of +ater: beginning temperature:location:

time ta;en for cooling.

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Material Hot $ater at "--oC K1PP4Apparatus (-- ml hot $ater at "--oC,) beaker $ith dierent size /0-,"--,(0-ml1,

thermometer,magni&ying glass, stop $atch .

K1PP4

Diagram Same volume of water in different size of beakerT!e area of ea"! beaker isdifferen"e as s!own in below fi#ure

K2PP4

Procedure ". hree beaker, 0-ml,"-- mland (0- mlrespicti2ely are prepared.(. "-- ml o& hot $ater at "-- oCpoured into each beaker.). he temperature o& the $ater in each beaker is recorded a&ter 0

minutes.

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Results%ina &adualRekod data

mani'ulasiRekod datares'onse

K3PP1 PP2

PP3

(ni iala! data awal dan sele'as $ minit terdeda! se&uk ba#i 'ermukaan berbezaDiscussion Permukaan besar, lebih cepat sejuk

1T!e tem'erature in t!e bi# beaker falls faster t!an t!at is t!e small beaker2T!is is be"ause !eat is released faster in t!e bi# beaker sin"e t!e e)'osed surfa"e area of water is lar#er3T!e "oolin# rete of water is !i#!er for a lar#er surfa"e area

*+'ot!esis a""e'ted

K4PP1Tafsiran

K4PP2,+atakan!i'o - . /

Conclusion he larger the sur&ace area eposed the higher the coolingrate o& a li*uid.

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Kamu da'at a'a0 K$PP1 inat nak ta!u 0 atau semban# salin tak fa!am a'a0 K$PP2 %uat ker&a sistematik0 K$PP3 da beker&asama0 K$PP1 Kamu bertan##un#&awab0

Surfa"e areae)'osed

ater tem'erature Redu"in# oftem'erature(nitial 5inal after $ minutes

Small 166o

C

76o

C 36o

Cedium 166oC $$oC 4$oC8ar#e 166oC 3$oC 9$oC


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LAPORAN PEKA SAINS SPM

Nama / 00000000000000000000000.... -ing;atan / 0000 -ari;h / 0000000

Tajuk

Tujuan K1PP1

Hipotesis K1PP2

Pembolehubah $anipulasi /


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!eputusan

%ina &adualRekod datamani'ulasiRekod datares'onse

K3 PP1 PP2 PP3

Perbincangannalisa data:raf;lasan data

K4PP1

Hipotesis mam'u > berani> &a#a keselamatan


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Disediakan oleh : Pn Hasnah Ahmad

LAPORAN PEKA SAINS 1511/2

1.1 cooling rate and area ada format laporan.doc

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