
SETIAP HARI 5 SOALAN-9/11
Authored by HAZNI -
Physics
1st Grade
Used 2+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rajah 14 menunjukkan Azman di atas sebuah rakit di permukaan air laut.
Jika jumlah berat Azman dan rakitnya ialah 1200 N dan ketumpatan air laut ialah 1025 kg m-3. Hitung isipadu bahagian rakit yang tenggelam?
0.12 m3
0.83 m3
1.20 m3
8.33 m3
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rajah 10 menunjukkan proses bekalan air dari sebuah tangki di atas puncak bukit ke tangki X di atas sebuah bangunan tinggi. Berapakah tekanan air di X dalam N m-2?
[Ketumpatan air = 1000 kg m-3]
1.0 × 105 Pa
2.0 × 105 Pa
1.6 × 105 Pa
2.6 × 105 Pa
Answer explanation
Tekanan
P=hpg
P=tekanan
h=kedalaman
p=ketumpatan cecair
g=graviti
*Tgk gambar utk menuntukan h bg tangki X.kedalaman dikira dr atas ke bawah ye.
P=hpg
P=(26-10)(1000)(10)
P=160000
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rajah 11 menunjukkan Afif berdiri di atas sebuah rakit.Jika jisim rakit dan isipadu bahagian rakit yang tenggelam adalah 90 kg dan 0.14 m3 masing-masing, berapakah jisim Afif, dalam kg?
[ Ketumpatan air = 1000 kg m3 dan g = 10 m s-2 ]
40 kg
50 kg
90 kg
140 kg
Answer explanation
Fb=daya apungan
Fb=W
pVg=mg
*potong g sbb dua2 belah ad
pV=m
m=1000(0.14)
m=140
*tapi m ni bukan jisim afif sbb m ni jisim keseluruhan.so kna tolak jisim rakit utk cari jisim afif
m=140-50
m=90kg
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rajah 13 menunjukkan sebuah kapal yang sarat dengan beban terapung di atas permukaan air laut.
Jika isipadu air yang tersesar oleh kapal ialah 350 m3, berapakah daya tujah yang bertindak ke atas kapal?
[Ketumpatan air laut = 1030 kg m3]
3.6 × 105 N
3.6 × 106 N
3.6 × 107 N
3.6 × 108 N
Answer explanation
Fb=pVg
Fb=1030x350x10
Fb=3605000
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rajah 12 menunjukkan sebuah model jek hidraulik.
Daya F1 bertindak pada omboh kecil untuk menyokong beban yang diletakkan pada omboh besar.
Jika F1 = 40.0 N, hitungkan magnitud daya F2.
1.2 N
8.0 N
102.0 N
120.0 N
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