Quiz Usaha dan Energi dalam Fisika

Quiz
•
Physics
•
10th Grade
•
Easy
OCI PITRIYANTI
Used 4+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapakah usaha yang dilakukan oleh Ilyas jika gaya yang diberikan sebesar 600 N dan perpindahan yang terjadi sejauh 60 m?
48.000 J
30.000 J
36.000 J
42.000 J
Answer explanation
To calculate work done, multiply force by displacement: 600 N * 60 m = 36,000 J. Therefore, the correct answer is 36,000 J.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Adi mendorong sebuah kursi dengan gaya 350 N sehingga kursi berpindah sejauh 20 m. Berapakah usaha yang dilakukan oleh Adi?
6.000 J
8.000 J
7.000 J
5.000 J
Answer explanation
Usaha dapat dihitung dengan rumus Usaha = gaya x jarak. Sehingga Usaha = 350 N x 20 m = 7.000 J. Jadi, jawaban yang benar adalah 7.000 J.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapakah energi potensial sebuah benda yang memiliki massa 10 kg berada pada ketinggian 1,2 m dengan percepatan gravitasi 10 m/s2?
120 J
130 J
100 J
110 J
Answer explanation
Energi potensial = massa x gravitasi x ketinggian = 10 kg x 10 m/s^2 x 1.2 m = 120 J. Jadi, energi potensialnya adalah 120 J.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah benda bermassa 5 kg diam pada ketinggian 40 cm dari tanah. Tentukan besarnya energi mekanik benda tersebut!
8 J
4 J
6 J
2 J
Answer explanation
The total mechanical energy of the object is the sum of its potential energy and kinetic energy. At a height of 40 cm, the potential energy is 6 J (mgh). Since the object is at rest, the kinetic energy is 0 J. Therefore, the total mechanical energy is 6 J.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dalam fisika, usaha diukur dalam satuan...
Meter
Newton
Watt
Joule
Answer explanation
Dalam fisika, usaha diukur dalam satuan Joule, bukan dalam satuan Meter, Newton, atau Watt. Joule adalah satuan untuk energi dan usaha.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energi kinetik suatu benda tergantung pada...
Perpindahan benda
Gaya yang bekerja
Percepatan benda
Massa benda
Answer explanation
Energi kinetik suatu benda tergantung pada massa benda, bukan perpindahan benda, gaya yang bekerja, atau percepatan benda.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Usaha yang dilakukan oleh suatu gaya dapat dihitung dengan rumus...
W = F x t
W = F x s
W = m x a
W = P x t
Answer explanation
The correct formula to calculate work done by a force is W = F x s, where W represents work, F is the force applied, and s is the displacement in the direction of the force.
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