Work, Energy, and Power MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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Elevate your grasp of Work, Energy, and Power with specialized online physics exams designed to enhance your preparation. These resources offer a thorough review of basic physics principles and complex concepts related to energy transformations and mechanical work. Dive into practice tests and MCQ answers that focus on critical topics like force and motion. By concentrating on force and motion MDCAT MCQs and other relevant questions, you can solidify your understanding and improve your exam performance.
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The work done to move an object with a force of 25 N over a distance of 2 meters is:
A. 50 J
B. 100 J
C. 75 J
D. 25 J
Answer: 50 J
The kinetic energy of a 12 kg object moving at 5 m/s is:
A. 150 J
B. 300 J
C. 75 J
D. 100 J
Answer: 150 J
The power of a machine that performs 2500 J of work in 50 seconds is:
A. 50 W
B. 100 W
C. 75 W
D. 60 W
Answer: 50 W
The energy conversion in a battery-operated fan involves:
A. Chemical to mechanical
B. Mechanical to chemical
C. Electrical to mechanical
D. Thermal to mechanical
Answer: Chemical to mechanical
The work done to lift a 9 kg object to a height of 5 meters is:
A. 450 J
B. 50 J
C. 90 J
D. 40 J
Answer: 450 J
The power of a device that uses 900 J of energy in 45 seconds is:
A. 20 W
B. 30 W
C. 40 W
D. 15 W
Answer: 20 W
The energy required to lift a 8 kg object to a height of 4 meters is:
A. 320 J
B. 32 J
C. 80 J
D. 40 J
Answer: 320 J
The work done to move an object with a force of 5 N over a distance of 8 meters is:
A. 40 J
B. 30 J
C. 20 J
D. 50 J
Answer: 40 J
The energy conversion in a refrigerator involves:
A. Electrical to thermal
B. Thermal to electrical
C. Chemical to thermal
D. Mechanical to electrical
Answer: Electrical to thermal