Chapter 9 manufacture E-soanlan Paper 3

Easy

1.Brass is harder and stronger than its constituent pure metals, copper and zinc.Tembaga adalah lebih keras dan lebih kuat daripada juzuk logam tulennya, kuprum dan zink.

An experiment was carried out to investigate the statement above.Satu eksperimen dijalankan untuk mengkaji pernyataan di atas.(a) State the problem statement of the experiment.

Nyatakan pernyataan masalah bagi eksperimen ini.

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(b) State the hypothesis of the experiment.Nyatakan hipotesis bagi eksperimen.

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(c) State, for the experiment, theNyatakan untuk eksperimen,i. manipulated variable:

Pemboleh ubah manipulasi:             _______________________________________________________ii. responding variable:

Pemboleh ubah bergerak balas: _______________________________________________________iii. constant variable:

Pemboleh ubah dimalarkan:           _______________________________________________________[3 marks/markah]

(d) Briefly describe the procedure of this experiment.Terangkan secara ringkas prosedur untuk eksperimen ini.

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