6.4 CEKAP TENAGA DAN PENGIRAAN KUASA ELEKTRIK
Quiz
•
Science
•
2nd Grade
•
Practice Problem
•
Hard
SITI Moe
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
apakah maksud cekap tenaga?
alat elektrik yang menggunakan tenaga elektrik yang banyak
alat elektrik yang menghasilkan kerja yang efisien
alat elektrik yang menggunakan sepenuh tenaganya untuk hasil yang efisien
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
pilih 3 alat elektrik yang cekap tenaga
ketuhar elektrik
radio
peti ais
mesin basuh
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
apakah fungsi label cekap tenaga?
memberitahu pengguna ia alat elektrik yang jimat tenaga elektrik
memberitahu pengguna ia alat elektrik yang sangat canggih
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
hitung nilai cekap tenaga jika tenaga inputnya 100J dan tenaga outputnya 75J
25%
75%
100%
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
jika tenaga yang dibekalkan ialah 100J kepada lampu dan 60% menjadi tenaga haba. Hitung nilai tenaga cahaya yang dihasilkan
100%
60%
40%
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
apakah nama logo di atas?
label cekap tenaga
label 5 bintang
label alat elektrik bertaraf 5 bintang
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
hitung nilai kuasa yang diperlukan oleh radio ini jika dia menerima 240V dengan arus 2A menggunakan formula P=VI
120
480
240
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