Ulangan Harian Kemagnetan

Quiz
•
Science
•
9th Grade
•
Hard
Dwi Narti
Used 19+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Benda yang ditarik lemah oleh magnet disebut ….
paramagnetik
diamagnetik
neomagnetik
feromanetik
2.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Contoh dari benda diamagnetik adalah ….
nikel
seng
alumunium
besi
3.
MULTIPLE SELECT QUESTION
1 min • 10 pts
Pernyataan yang benar tentang sifat-sifat kutub magnet adalah ….
kutub senama magnet akan tarik menarik
kutub senama magnet akan tolak menolak
kutub tidak senama akan tolak menolak
kutub selatan magnet dapat menarik semua logam
4.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Sebuah trafo memiliki 90 lilitan primer dan 60 lilitan sekunder. Jika tegangan pada lilitan primer 300 volt. Hitunglah besar tegangan pada lilitan sekunder !
200 volt
400 volt
300 volt
100 volt
5.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Sifat kemagnetan suatu logam dapat dihilangkan dengan cara berikut, kecuali ….
dipanaskan
didinginkan
dijatuhkan
dialiri arus bolak balik
6.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Jika daya listrik yang mengalir pada kumparan primer dan sekunder trafo sebesar 70 watt dan 350 watt, berapa persen kah efisiensi trafo tersebut?
40%
80%
50%
70%
7.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Dua buah paku menempel akibat induksi magnet dari kutub utara sebuah magnet batang seperti gambar berikut. Posisi pengkutuban yang benar pada paku ditunjukkan oleh diagram bernomor ….
I
II
III
IV
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