
Materi Magnet
Presentation
•
Science
•
6th Grade
•
Practice Problem
•
Medium
DWI HARTININGSIH
Used 9+ times
FREE Resource
14 Slides • 5 Questions
1
KELAS 6
2
Asal Mula
Magnet berasal dari kata MAGNESIA
Magnet pertama kali
dimanfaatkan sebagai kompas
pada kapal layar zaman dahulu
Magnet alam
3
Benda dilihat dari segi daya tarik
terhadap magnet
1. Ferromagnetik
2. Diamagnetik
Contoh : Besi, baja
Contoh: kayu, plastik,
alumunium,timah hitam, dll
4
Jenis Magnet
1. Magnet Tetap (Permanen)
2. Magnet Sementara (Remanen)
Dilihat dari sifat kemagnetannya
Dilihat dari bentuknya
Baja
Besi
5
HUKUM KEMAGNETAN
1.Kutub senama tolak menolak
2.Kutub tidak senama tarik menarik
6
Kutub Senama
TOLAK MENOLAK
UU
SS
7
Kutub tidak senama
TARIK MENARIK
US
SU
8
Medan Magnet
Ruang di sekitar magnet yang mengalami
gaya magnet
Serbuk besi terkonsentrasi
banyak pada daerah kutub.
Berarti :
Gaya magnet terkuat ada pada
KUTUB-KUTUB nya
9
Cara Membuat Magnet
Ada 3, yaitu
1. Induksi
2. Gosokan Searah
3. Elektromagnet
10
1. Induksi
Besi/Baja didekatkan dengan magnet akan menjadi magnet
11
2. Gosokan
Besi/Baja digosok-gosok searah dengan magnet menjadi
magnet
12
3. Elektromagnet
a.
Sifat kemagnetannya SEMENTARA
b. Banyak dimanfaatkan untuk alat elektronika
13
Pemanfaatan Magnet
Magnet khususnya elektromagnet banyak
dimanfaatkan di bidang elektronika
14
Multiple Choice
Benda-benda yang dapat ditarik oleh magnet disebut ... .
Feromagnetik
Diamagnetik
Paramagnetik
Magnetik
15
Jika magnet dipotong
16
Multiple Choice
Benda-benda yang dapat ditarik oleh magnet disebut ... .
Feromagnetik
Diamagnetik
Paramagnetik
Magnetik
17
Multiple Choice
Gaya magnet terkuat berada pada bagian ... .
kutub magnet
tengah magnet
semua bagian magnet
medan magnet
18
Multiple Select
Cara membuat magnet
gosokan searah
elektromagnet
induksi
Inflasi
19
Multiple Choice
Jika kutub utara dan kutub selatan didekatkan maka akan terjadi
tolak menolak
tarik menarik
saling menolak
saling berhadapan
KELAS 6
Show answer
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