PRINSIP KEABADIAN TENAGA
Quiz
•
Physics
•
4th Grade
•
Practice Problem
•
Medium

MOHAMAD KHAIRI
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rajah menunjukkan satu lintasan bola mentruni landasan melenkung yang licin.Bola itu mengalami perubahan tenaga keupayaan graviti terbesar di antara
P dan Q
Q dan R
P dan S
R dan T
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuantiti fizik yang manakah bertambah ketika pelajar itu menaiki tangga?
lnersia pelajar itu
Momentum pelajar itu
Tenaga kinetik pelajar itu
Tenaga keupayaan pelajar itu
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rajah menunjukkan satu sfera logam sedang berayun di atas landasan tanpa geseran.Antara pernyataan berikut, yang manakah benar?
Tenaga kinetik sfera logam minimum di R
Tenaga keupayaan sfera logam maksimum di P
Prinsip keabadian tenaga tidak dipatuhi
Jumlah tenaga sfera logam di S lebih tinggi daripada di R
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rajah menunjukkan seorang murid berjisim 70 kg menaiki tangga setinggi 4 m dalam masa 40 s.Berapakah kuasa yang dijanakan oleh murid itu?
28 W
35 W
70 W
700 W
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rajah menunjukkan alas bebola P dilepaskan atas satu landasan licin.Berapakah halajunya di Q?
2.4 m s-1
4.0 m s-1
7.8 m s-1
16.0 m s-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rajah menunjukkan sebiji batu di atas suatu cerun licin.Batu itu menggelongsor menuruni cerun dan berhenti pada titik P.Berapakah kerja yang dilakukan oleh batu itu?
14 J
18 J
140 J
180 J
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rajah di bawah menunjukkan sebiji kelapa berjisim 2 kg jatuh dari ketinggian 60 m ke tanah. Di kedudukan manakah kelapa tersebut mempunyai tenaga keupayaan graviti yang paling tinggi?
P
Q
R
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