kerja cuti 4st

8/6/2019 kerja cuti 4st

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EEXXPPEERRIIMMEENNTT22..11:: SSIIMMPPLLEE PPEENNDDUULLUUMM

Figure 1 and Figure 2 show two positions of a boy on a swing. The angle of oscillation in both

diagrams is at the same angle from the iron pole. He noticed that the shorter swing moves faster

than the longer swing.

(Rajah 1 dan Rajah 2 menunjukkan dua kedudukan seorang budak di atas buaian. Sudut anyunan dalamkedua-dua rajah adalah sama sudut daripada palang besi tersebut. Dia mendapati buaian yang pendek

bergerak lebih laju berbanding buaian panjang.)

Figure 1 Figure 2

Based on the information and observation,Berdasarkan maklumat dan pemertian tersebut:

(a) Make one suitable inference.

Nyatakan satu inferens yang sesuai. [1 mark]

(b) State one appropriate hypothesis that could be investigated.

Nyatakan satu hipotesisi yang sesuai. [1 mark]

(c) With the use of apparatus such as thread, brass bob, plywood and other apparatus, describe

one experimental framework to investigate the hypothesis stated in (b).

Dengan menggunakan radas seperti benang, pendulum bob, kepingan plywood dan radas lain,

terangkan satu rangka kerja eksperimen untuk menyiasat hipotesis yang dinyatakan dalam (b).

In your description, state clearly the following:Dalam penerangan anda, jelaskan perkara berikut:

(i) Aim of the experiment.

Tujuan eksperimen.

(ii) Variables in the experiment.

Pembolehubah dalam eksperimen.

(iii) List of apparatus and materials.

Senarai radas dan bahan.

(iv) Arrangement of the apparatus.

Susunan radas.

(v) The procedure of the experiment which include the method of controlling the

manipulated variable and the method of measuring the responding variable.

Prosedur eksperimen yang mengandungi cara mengawal pembolehubah yang

dimanipulasikan dan cara mengukur pembolehubah yang bergerak balas.

(vi) The way you would tabulate the data.

Cara untuk menjadualkan data.

(vii) The way you would analyse the data.Cara untuk menganalisis data [10 marks]


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EEXXPPEERRIIMMEENNTT22..22:: VVEELLOOCCIITTYYVVSS HHEEIIGGHHTTOOFF TTHHEE SSLLIIDDEE

Figures show two slides P and Q of different height in a playground.

The two boys of the same mass are sliding down from the top of slides P and Q . The boy

at slide P found that he reaches the ground at a higher speed than a boy at slide Q .

Based on the information and observation above :

(a) Satate one suitable inference. [ 1 mark ]

(b) State one suitable hypotesis. [ 1 mark ]

(c) With the use of apparatus as such as runway, trolleys and other apparatus,

describe an experiment framework to investigate the hypothesis stated in (b)

In your description, state slearly the following :





(v) The procedure of the experiment which include the method

of controlling the manipulated variable and the method of

measuring the responding variable.


(vii) The way you would analyse the data.

[ 10 marks ]


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EEXXPPEERRIIMMEENNTT22..44:: MMAASSSS AANNDD IINNEERRTTIIAA

Figure

A boxer tried to push a sandbag which was hanging stationary as shown in Figure (a).He noticed that initially it was difficult to get the sandbag to start moving. He then triedto stop the motion of the swinging sandbag as shown in Figure (b). He noticed that itwas more difficult to stop the sandbag than to move it.

Based on the observations;

a. State one suitable inference that can be made.[1 mark]

b. State one appropriate hypothesis for an investigation.[1 mark]

c. With the use of apparatus such asG-clamp, jigsaw blade and otherapparatus, describe an experimental framework to test your hypothesis.

In your description, state clearly the following:(i) Aim of the experiment

(ii) Variables in the experiment

(iii) List of apparatus and materials

(iv) Arrangement of the apparatus

(v) The procedure of the experiment which include the method of controllingthe manipulated variable and the method of measuring the respondingvariable

(vi) Describe how you would tabulate the data

(vii) Describe how you would analyse the data

[10 marks]


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EEXXPPEERRIIMMEENNTT22..55:: MMAASSSS VVSS AACCCCEELLEERRAATTIIOONN ((FF == mmaa))

Diagram 3.1 shows a car pulling a heavily packed trailer. The trailer is attached to the car

with a locking mechanism. The cars engine is exerting a constant force that causes the car

and the trailer to accelerate together. Diagram 3.2 shows what happens when the locking

mechanism fails and the trailer is dislodged. The car lurches forward with an increased

acceleration on its own.

(Rajah 3.1 menunjukkan sebuah kereta sedang menarik sebuah trailer yang penuh muatan.Suatu mekanisma kunci menghubungkan kereta dengan trailer. Enjin kereta mengenakan satu

daya yang tetap menyebabkan kereta dan trailer mengalami pecutan yang sama.]

Based on the effect onto the cars acceleration;Berdasarkan kesan ke atas pecutan kereta:

(a)make an inference.buat satu inferens.

(b)state an appropriate hypothesis that could be investigatednyatakan satu hipotesis yang sesuai yang boleh disiasat.

Diagram 3.2Rajah 3.2

Diagram 3.1Rajah 3.1


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(c)design an experiment to test the hypothesis, using ticker timer, trolley and othersuitable apparatus.

Reka satu eksperimen untuk menguji hipotesis, menggunakan jangka masa detik, trolidan lain-lain radas yang sesuai

In your description, state clearly the following;

Dalam penerangan anda, jelaskan perkara berikut:

(i) aim of the experiment,tujuan eksperimen,

(ii) variables in the experiment,pembolehubah yang terlibat dalam eksperimen,

(iii) list of apparatus and materials,

senarai radas dan bahan,

(iv) arrangement of the apparatus,susunan radas,

(v) the procedure of the experiment, including the method of controlling the

manipulated variable and the method of measuring the responding variable, prosedur eksperimen termasuk kaedah mengawal pembolehubah dimanipulasi

dan kaedah mengukur pembolehubah bergerak balas,

(vi) the way you would tabulate the data, andcara bagaimana anda akan menjadualkan data, dan

(vii) the way you would analyse the data.cara bagaimana anda akan menganalisis data.


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EEXXPPEERRIIMMEENNTT22..77:: HHOOOOKKEESS LLAAWW

Diagram 4.1 shows a cradle with a new born baby. Diagram 4.2 shows another cradle with a 1

year old baby. Both cradle use identical cradles spring. We notice that, the cradles spring inDiagram 4.2 is longer than Diagram 4.1.

Based on the above information and observations:

(a) State one suitable inference, [1 mark]

( b) Stateone suitable hypothesis [1 mark]

(c) With the use of apparatus such as a spring, a pin and others, describe one experiment toinvestigate the hypothesis stated in (b).

In your description, state clearly the following:





(v) The procedure of the experiment which include one method of controlling themanipulated variable and one method of measuring the responding variable.


(vii) The way you would analyse the data.[10 marks]

Diagram 4.1

Rajah 4.1

Diagram 4.2

Rajah 4.2

Cradles spring

Spring buaian

New born baby

Bayi baru lahir

Cradles spring

Spring buaian

1 year old baby

Bayi berusia 1 tahun


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EEXXPPEERRIIMMEENNTT22..88:: CCHHAANNGGEE IINN LLEENNGGTTHH VVSS VVEELLOOCCIITTYY

Diagram 3.1 and 3.2 each shows two position of a solid ball which is pressed towards the wall.The initial position in each diagram is different. The ball moves away from the spring when the

compressive force is removed.Observe the initial and the final position of the ball in each diagram.

Based on the above information and observations:

(a) State one suitable inference, [1 mark]

( b) Stateone suitable hypothesis [1 mark]

(c) With the use of apparatus such as a ticker timer, friction compensated track, trolley andothers, describe one experiment to investigate the hypothesis stated in (b).

In your description, state clearly the following:





(v) The procedure of the experiment which include one method of controlling themanipulated variable and one method of measuring the responding variable.


(vii) The way you would analyse the data.[10 marks]


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