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Laporan Amali:

Aim : To understand the steps in scientific investigation.

Apparatus : Electronic stopwatch, retort stand, pendulum bob, and meter rule.

Materials : Long thread, split cork.

Hypothesis : The oscillation period directly proportional to the length of thependulum.

Variables : Which is,

a. Constant: umber of oscillation

Procedure : !. The correct way of using and reading an electronic

stopwatch is learnt from the teacher.

". # simple pendulum of $% cm length is prepared as shownin the diagram.

$. The pendulum bob is swung slightly and the time takenfor !% complete oscillation is observed.

&. The time taken for one complete oscillation is calculated.

'. (tep two and step three are repeated by using deferent pendulum lengths.

). # graph between the pendulum length and oscillation

period is drawn.

Observations :

Pendulum

Length (cm)

Time Taen !or "# complete oscillations (seconds) Oscillation

Period

(second)" $ % Average

$% !!.% !%.* !!." !!.% !.!%

&% !$.% !".% !".' !".' !."'

'% !$.* !&.! !&.! !&.% !.&%

)% !'.$ !'.& !'.* !'.' !.''

+% !+.! !+." !).+ !+.% !.+%

ump. !". !

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&nterpretation 'ata :

onclusion : !. # shorter pendulum swings faster than a longer pendulum.". The oscillation period time is to the length of a pendulum.

-eraturan Permarahan:

lemen " *or +utiran

-- !% ! apat mengenal pasti satu /enispembolehubah saha/a dengan betul .

-- !! ! apat menyatakan idea tentanghubungan pembolehubah dengan

pemboleubah.

ump. !". "

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ump. !". $