Firefighter Mechanical Aptitude · Question
What is the SI unit for work?
The Joule (J) is the SI unit for both work and energy, defined as the work done by a force of one Newton moving an object one metre.
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Question: What is the SI unit for work?
Answer options:
- Newton
- Watt ✅ Joule
- Pascal
Correct answer: Joule
Explanation: The Joule (J) is the SI unit for both work and energy, defined as the work done by a force of one Newton moving an object one metre.
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Question explanations
- Scenario 1: Which simple machine uses a fulcrum to multiply force or change the direction of force?
- Scenario 2: If a hydraulic jack has a small piston with an area of 5 cm² and a large piston with an area of 50
- Scenario 3: Which of the following would require the MOST force to move?
- Scenario 4: A rope is tied to a heavy box. Instead of pulling the box directly, a firefighter wraps the rope a
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