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Sebuah corong tisel yang mulutnya ditutup dengan selaput getah nipis disambungkan dengan tiub getah kepada satu lengan manometer tiub-U kaca yang berisi minyak parafin berwarna. Corong itu diturunkan ke dalam sebuah tangki kaca tinggi yang berisi air. Kedalaman, d, diukur dari permukaan air hingga ke selaput dengan pembaris meter, dan beza antara dua aras minyak dalam manometer, H, dibaca daripada skala yang dipasang di belakang tiub-U. Prosedur: (1) Turunkan selaput ke d = 5.0 cm dan catatkan H. (2) Ulang untuk d = 10.0 cm, 15.0 cm, 20.0 cm dan 25.0 cm. Seorang murid memperoleh bacaan berikut: d = 5.0 cm, H = 6.3 cm; d = 10.0 cm, H = 12.4 cm; d = 15.0 cm, H = 18.8 cm; d = 20.0 cm, H = 25.1 cm; d = 25.0 cm, H = 31.2 cm. Garis lurus penyesuaian terbaik bagi H melawan d melalui asalan.
Menggunakan graf H melawan d anda, nyatakan bagaimana H berhubung dengan d.
A thistle funnel whose mouth is sealed with a thin rubber membrane is joined by rubber tubing to one arm of a glass U-tube manometer that contains coloured paraffin oil. The funnel is lowered into a tall glass tank of water. The depth, d, is measured from the water surface down to the membrane with a metre rule, and the difference between the two oil levels in the manometer, H, is read from a scale fixed behind the U-tube. Procedure: (1) Lower the membrane to d = 5.0 cm and record H. (2) Repeat for d = 10.0 cm, 15.0 cm, 20.0 cm and 25.0 cm. A student obtained these readings: d = 5.0 cm, H = 6.3 cm; d = 10.0 cm, H = 12.4 cm; d = 15.0 cm, H = 18.8 cm; d = 20.0 cm, H = 25.1 cm; d = 25.0 cm, H = 31.2 cm. The best-fit straight line of H against d passes through the origin.
Using your graph of H against d, state how H is related to d.
Bahasa Melayu
Sebuah corong tisel yang mulutnya ditutup dengan selaput getah nipis disambungkan dengan tiub getah kepada satu lengan manometer tiub-U kaca yang berisi minyak parafin berwarna. Corong itu diturunkan ke dalam sebuah tangki kaca tinggi yang berisi air. Kedalaman, d, diukur dari permukaan air hingga ke selaput dengan pembaris meter, dan beza antara dua aras minyak dalam manometer, H, dibaca daripada skala yang dipasang di belakang tiub-U. Prosedur: (1) Turunkan selaput ke d = 5.0 cm dan catatkan H. (2) Ulang untuk d = 10.0 cm, 15.0 cm, 20.0 cm dan 25.0 cm. Seorang murid memperoleh bacaan berikut: d = 5.0 cm, H = 6.3 cm; d = 10.0 cm, H = 12.4 cm; d = 15.0 cm, H = 18.8 cm; d = 20.0 cm, H = 25.1 cm; d = 25.0 cm, H = 31.2 cm. Garis lurus penyesuaian terbaik bagi H melawan d melalui asalan.
Menggunakan graf H melawan d anda, nyatakan bagaimana H berhubung dengan d.
English
A thistle funnel whose mouth is sealed with a thin rubber membrane is joined by rubber tubing to one arm of a glass U-tube manometer that contains coloured paraffin oil. The funnel is lowered into a tall glass tank of water. The depth, d, is measured from the water surface down to the membrane with a metre rule, and the difference between the two oil levels in the manometer, H, is read from a scale fixed behind the U-tube. Procedure: (1) Lower the membrane to d = 5.0 cm and record H. (2) Repeat for d = 10.0 cm, 15.0 cm, 20.0 cm and 25.0 cm. A student obtained these readings: d = 5.0 cm, H = 6.3 cm; d = 10.0 cm, H = 12.4 cm; d = 15.0 cm, H = 18.8 cm; d = 20.0 cm, H = 25.1 cm; d = 25.0 cm, H = 31.2 cm. The best-fit straight line of H against d passes through the origin.
Using your graph of H against d, state how H is related to d.
[1 mark]
🧭Modelled on PINTAS trial 2026 · Kertas 3 · Q1(e)(i)
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