
SAINS TINGKATAN 3 BAB 7: TENAGA DAN KERJA _PENGIRAAN (7.1 & 7.2)

Quiz
•
Science
•
3rd Grade
•
Easy
AWANG STUDENT
Used 2+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Seorang pelajar menolak kerusi dengan daya 40 N dan kerusi itu bergerak sejauh 3.5 meter. Berapakah jumlah kerja yang dilakukan oleh pelajar tersebut?
100 J
120 J
140 J
160 J
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah motor mengangkat beban berjisim 30 kg ke ketinggian 4 meter dalam masa 6 saat. Apakah kuasa yang digunakan oleh motor? (g = 10 m/s²)
150 W
180 W
200 W
220 W
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah baldi air berjisim 10 kg tergantung dari bumbung pada ketinggian 2.5 m. Apakah tenaga keupayaan graviti baldi itu? (g = 10 m/s²)
200 J
250 J
300 J
350 J
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebiji bola berjisim 0.8 kg dibaling dengan halaju 12 m/s. Kira tenaga kinetik bola itu.
50.0 J
55.2 J
57.6 J
60.8 J
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah spring memerlukan daya 25 N untuk dimampatkan sebanyak 0.3 m. Apakah tenaga keupayaan kenyal yang disimpan pada musim bunga?
2.5 J
3.0 J
3.5 J
3.75 J
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah mesin melakukan kerja sebanyak 4500 J dalam 15 saat. Apakah kuasa mesin itu?
200 W
250 W
300 W
350 W
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