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

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5 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rajah 13 menunjukkan sebuah empangan dibina merentasi sebuah sungai. Kedalaman air dari dasar empangan ialah 25 m.
Jika ketumpatan air ialah 1.0 x 103 kg m-3, berapakah tekanan air pada dasar empangan itu?
2.5 × 102 N m–2
2.5 × 103 N m–2
2.5 × 104 N m–2
2.5 × 105 N m–2
Answer explanation
P=hpg
P=tekanan
h=kedalaman
p=ketumpatan cecair
g=graviti
P=25x10x1000
P=250000 Nm-1
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rajah 15 menunjukkan sebuah manometer disambungkan kepada bekalan gas X.
Tekanan atmosfera ialah 75 cm Hg. Berapakah tekanan gas X?
73 cm Hg
75 cm Hg
77 cm Hg
79 cm Hg
Answer explanation
Beza :75-2(pada pembaris)
=73
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rajah 15 menunjukkan satu sinar cahaya yang menuju ke sebuah cermin satah.
Berapakah nilai x?
70°
55°
40°
35°
Answer explanation
Hukum snell i=r
jadi sudut biasan mesti 35.jadi 90-35 utk dapatkan nilai 55
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rajah 23 menunjukkan satu sinar cahaya merambat dari udara ke air.
Berapakah indeks biasan bagi air?
0.88
1.33
0.73
1.58
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rajah 9 menunjukkan seekor ikan di dalam sebuah tasik.Berapakah jumlah tekanan dikenakan ke atas ikan tersebut?
[ Tekanan atmosfera = 10mair]
2 m air
8 m air
10 m air
12 m air
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