6.4 Pengiraan Kos Elektrik
Quiz
•
Science
•
7th - 10th Grade
•
Practice Problem
•
Hard
SAIDI Moe
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kecekapan tenaga ditakrifkan sebagai
jumlah tenaga input yang diubah kepada bentuk tenaga output yang berfaedah.
peratus tenaga output yang diubah kepada bentuk tenaga input yang berfaedah.
peratus tenaga input yang diubah kepada bentuk tenaga output yang berfaedah.
jumlah tenaga output yang diubah kepada bentuk tenaga input yang berfaedah.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berdasarkan rajah di atas, mentol 100W berwarna putih lebih cerah berbanding mentol 100W berwarna kuning. Mengapa?
warna putih memang lebih cerah berbanding warna kuning
kecekapan mentol putih lebih tinggi berbanding mentol kuning
kuasa mentol putih lebih tinggi berbanding kuasa mentol kuning
mentol kuning lebih bulat berbanding mentol putih
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Unit bagi kecekapan tenaga berdasarkan rajah di atas ialah
Joule
Watt
Peratus
Voltan
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Berdasarkan rajah di atas, mentol yang lebih jimat ialah _________
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Pilih kuantiti fizik yang terlibat dalam formula pada rajah.
voltan
tenaga elektrik
arus elektrik
cas elektrik
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Di Thailand, voltan bagi bekalan arus ulang-alik yang dibekalkan ke rumah ialah 120 V. Apakah yang akan berlaku jika jag di Rajah 6.19 digunakan di Thailand?
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berdasarkan rajah di atas, arus elektrik ditakrifkan sebagai kadar pengaliran cas elektrik. Unit SI bagi masa ialah
hari
jam
minit
saat
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