b3d21e1

Nama : .............................................. Tingkatan : ......................... Tarikh : ...............

B3D21 Memerihal pusat graviti dengan kestabilan objek

B3D21E1 Menyatakan hubungan antara pusat graviti dengan kestabilan objek

Kerusi P dan Q mempunyai keluasan tapak yang sama tetapi ketinggian yang berlainan. Jawab soalan berikut.Both chairs P and Q have the same base area but different heights. Answer the following questions.

P Q

1. Kerusi yang manakah lebih stabil?Which chair is more stable?

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2. Berikan inferens untuk jawapan anda di soalan no 1.Give an inference for your answer in question no 1.

Kerusi Q mempunyai pusat graviti yang __________ berbanding kerusi P.

Q has a __________ centre of gravity than P.

3. Apakah hubungan antara kestabilan objek dengan pusat graviti?

What is the relationship between the stability of an object and its centre of gravity?

Semakin __________ kedudukan pusat graviti, semakin __________ objek itu.

The __________ the position of its centre of gravity, the more __________ the

object.

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Keputusan : Catatan Guru : .............................................................................. ......................................................................................................

Menguasai / Belum Menguasai Tandatangan : .................................. Tarikh …...........................





Lebih RendahLower

StabilStable

RendahLower

P Q


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2. Berikan inferens untuk jawapan anda di soalan no 1.Give an inference for your answer in question no 1.

Kerusi Q mempunyai pusat graviti yang __________ berbanding kerusi P.

Q has a __________ centre of gravity than P.



Semakin __________ kedudukan pusat graviti, semakin __________ objek itu.

The __________ the position of its centre of gravity, the more __________ the

object.

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Sebuah kerusi telah diubah suai dari keadaan P ke Q. Jawab soalan berikut.A stool is being modified from condition P to Q. Answer the following questions.

P Q

1. Keadaan yang manakah adalah lebih stabil bagi kerusi tersebut?Which condition is more stable for the stool?

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2. Mengapa?Why?

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3. Apakah kesimpulan yang dapat dibuat berdasarkan keadaan di atas?What conclusion can be made from the above?

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P Q R S


A P

B Q

C R

D S

2. Kerusi S akan jatuh tumbang terlebih dahulu keranaS topples first because

A geseran pada S lebih besarthe friction of S is larger

B pusat graviti S lebih rendahthe centre of gravity of S is lower

C pusat graviti S lebih tinggithe centre of gravity of S is higher

D luas tapak S lebih besarthe base area of S is bigger

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3. Antara susunan objek yang berikut, yang manakah betul mengikut kestabilan secara urutan menurun?

Which of the following sequence shows the correct arrangement of the objects in

descending order of stability?

A P , R, Q, S

B Q, P, S, R

C R, Q, P, S

D S, Q, R, P



A Semakin rendah kedudukan pusat graviti, semakin stabil objek itu

The lower the position of its centre of gravity, the more stable the object

B Semakin tinggi kedudukan pusat graviti, semakin stabil objek itu

The higher the position of its centre of gravity, the more stable the object

C Semakin rendah kedudukan pusat graviti, semakin kurang stabil objek itu

The lower the position of its centre of gravity, the less stable the object

D Kestabilan objek meningkat dengan ketinggian objek

The stability of an object increases with its height

5. Kereta lumba adalah stabil kerana

A race car is stable because

A ia mempunyai pusat graviti yang tinggi

it has a high centre of gravity

B ia mempunyai pusat graviti yang rendah

it has a low centre of gravity

C ia mempunyai tapak yang kecil

it has a small base area

D ia ringan

it is light

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