ENERGI 3 - HUKUM KEKEKALAN ENERGI MEKANIK
Quiz
•
Physics, Science
•
7th Grade
•
Medium
Ana Saputri
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Bila hukum kekekalan energi mekanik berlaku pada suatu sistem, maka ...
energi kinetik sistem selalu berkurang
energi potensial sistem selalu bertambah, sedangkan energi kineti sistem selalu berkurang
jumlah energi potensial dan energi kinetik sistem selalu bertambah
jumlah energi potensial dan energi kinetik sistem adalah tetap
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Di jalan yang menurun, sepeda meluncur cepat meskipun tidak dikayuh. hal ini disebabkan...
Perubahan energi kinetik menjadi energi kalor
Perubahan energi kinetik menjadi energi kinetik
Perubahan energi potensial menjadi energi kinetik
Perubahan energi kinetik menjadi energi potensial
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Buah kelapa yang massanya 1 kg berada pada ketinggian 12 meter dari Tanah. berapakah energi potensial maksimum yang dimiliki buah kelapa tersebut terhadap Tanah?
1,2 joule
12 joule
120 joule
1200 joule
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sebuah bola besi massanya 0,2 kg dilempar vertikal keatas. Energi potensial benda pada ketinggian maksimum adalah 40 J. Bila g = 10 m/s², maka ketinggian maksimum yang dicapai bola tersebut adalah... .
2 m
5 m
10 m
20 m
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Unsur dari energi mekanik adalah ....
Energi Kinetik + Energi Potensial
Energi Kimia + Energi Potensial
Energi Kinetik + Energi Kimia
Energi Kinetik + Energi Listrik
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perhatikan gambar di atas !.
Energi Potensial maksimum terdapat pada posisi ....
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perhatikan gambar di atas !
Energi kinetik bernilai maksimum jika berada pada posisi ....
A
B
C
D
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