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Tugasan 2.5.1

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Tugasan 2.5.1
Anda dikehendaki menjalankan eksperimen untuk mengkaji hubungan antara jisim dengan
pecutan sebuah troli menggunakan jangkamasa detik.Seterusnya, anda dikehendaki
menyediaka laporan eksperimen yang mengandungi :
You are required to conduct an experiment to study the relationship between the mass and
the acceleration of a trolley by using ticker timer. Then, you are required to prepare the
report of experiment which has :

Inferens
Inference

Hipotesis
Hypothesis

Tujuan
Aim

Pemboleh ubah
Variables
i. Pemboleh ubah dimanipulasi
Manipulated variable
ii. Pemboleh ubah bergerak balas
Responding variable
iii. Pemboleh ubah dimalarkan
Constant variable

Radas dan bahan
Apparatus and material

Susunan radas dan bahan
Arrangement of apparatus and material

Prosedur
Procedure

Keputusan eksperimen
Result of experiment

Analisis dan mentafsir data
Analyse and interpret data

Kesimpulan
Conclusion

Langkah berjaga-jaga
Precaution
Contoh Laporan Murid
Inferens : Pecutan bergantung pada jisim
Inference : Acceleration is depend on mass
Hipotesis : Apabila jisim bertambah , pecutan berkurang.
Hypothesis : When the mass increased, the acceleration will be decreased.
Tujuan : Untuk menyiasat hubungan di antara jisim dengan pecutan .
Aim
: To investigate the relationship between the acceleration and the mass
Pemboleh ubah :
Variables
:
i. Pemboleh ubah dimanipulasi : jisim
Manipulated variable
: masss
ii. Pemboleh ubah bergerak balas : pecutan
Responding variable
: acceleration
iii. Pemboleh ubah dimalarkan : Daya
Constant variable
: Force applied
Senarai radas dan bahan
: Lima troli, jangkamasa detik,pita detik , gelang getah ,
landasan condong terpampas geseran , bekalan kuasa .
List of apparatus and material : 5 Trolleys, ticker timer, ticker tape, a rubber band, friction
compensated inclined plane , runway, 12 V a.c power
supply.
Susunan radas dan bahan :
Arrangement of apparatus and material :
Trolley
rubber band
Ticker Timer
Ticker tape
Friction compensated runway
Power supply
Prosedur :
Procedure :
1. Pita detik dilekatkan pada troli dan pita itu dilalukan melalui jangkamasa detik.
The ticker tape is attached to a trolley and the tape is passed through the ticker-timer.
2. Troli itu ditarik ke belakang, menentang tali kenyal supaya tali kenyal diregangkan
sehingga satu pemanjangan yang tetap.
The trolley is pulled backwards against the elastic cord so that the elastic cord is
stretched with a fixed extension.
3. Troli dilepaskan supaya trole menggelongsor menurun landasan.
The trolley is released so that the trolley slides down the runway.
4. Pita detik dipotong kepada keratan-keratan dengan 5 detik dan satu carta pita dibinakan.
The ticker tape is cut into 5 ticks strips and a tape chart is made.
5. Pecutan troli dihitungkan dengan menggunakan formula 𝑎 =
v−u
The acceleration of trolley is calculated by using formulae 𝑎 =
t
v−u
t
6. Prosedur 2 hingga prosedur 5 diulangi dengan menggunakan 2,3,4 dan 5 troli.
Procedure 2 to Procedure 5 are repeated by using 2, 3, 4 and 5 trolleys.
Keputusan eksperimen :
Result of experiment :
Mass / num. of
trolley
1
2
3
4
5
1
m (kg-1)
1.00
0.50
0.33
0.25
0.20
acceleration / cm s-2
110.0
55.0
36.0
28.0
22.0
Analisis dan mentafsir data:
Analyse and interpret data:
Kesimpulan : a berkadar langsung dengan . 1
m
Conclusion : a is directly proportional to 1
m
Langkah berjaga-jaga : Kedudukan mata hendaklah berserenjang dengan skala pembaris
untuk mengelakkan ralat paralaks.
Precaution
: The position of eye must be perpendicular to the scale of meter rule
to avoid pallarax error.
KPS – 17
KM – 2
NM - 2
JUM - 20
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