Sains Ting 3 Bab 6.4
Quiz
•
Science
•
9th Grade
•
Practice Problem
•
Hard
Nuha Nasir
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rajah menunjukkan terlalu banyak plag peralatan elektrik disambungkan pada satu soket. Mengapakah amalan yang ditunjukkan di atas sangat tidak digalakkan?
Boleh merosakkan soket
Boleh menyebabkan litar pintas
Boleh merosakkan peralatan elektrik
Menggunakan banyak tenaga elektrik
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah maksud kuasa elektrik?
kadar pemindahan tenaga elektrik
tenaga yang hilang merentasi rintangan
tenaga yang dipindahkan
pertukaran tenaga elektrik kepada bentuk tenaga lain di dalam suatu litar elektrik
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah unit bagi Kuasa elektrik?
Ampere, A
Volt, V
Joule, J
Watt, W
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah cerek elektrik berlabel "240 V, 2kW" Apakah maksud label tersebut?
Kuasa elektrik sebanyak 2kJ per saat dihasilkan apabila disambungkan kepada bekalan kuasa 240 V
Tenaga elektrik sebanyak 2kJ per saat dihasilkan apabila disambungkan kepada bekalan kuasa 240 V
Arus elektrik sebanyak 2kJ per saat dihasilkan apabila disambungkan kepada bekalan kuasa 240 V
Kuasa sebanyak 240 V dihasilkan apabila disambungkan kepada bekalan kuasa 2kW
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jadual menunjukkan 4 jenis pemanas rendam digunakan untuk memanaskan air.
Pemanas rendam manakah yang dijangka akan memanaskan air paling cepat?
P
Q
R
S
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kirakan kuasa, P apabila V=50 V, I=0.5 A
15 W
20 W
25 W
30 W
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah lampu berlabel "12 V, 24 W". Berapakah jumlah tenaga elektrik yang dihasilkan dalam satu jam?
85 400 J
86 400 J
87 400 J
88 400 J
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