What is the SI unit of work?
Show answer & explanation
Correct answer: D
Explanation
Correct Answer:
Option 4: Joule
Explanation:
The SI unit of work is the Joule. When a force of 1 Newton displaces an object over a distance of 1 meter, the work done is 1 Joule. Mathematically, Work = Force × Displacement (W = F × s). The Joule is also the unit of energy and heat. It is a scalar quantity; that is, it possesses only magnitude and no direction.
Additional Facts:
Option 1: The Weber is the unit of magnetic flux.
Option 2: The Tesla is the unit of the magnetic field.
Option 3: The Coulomb is the unit of electric charge.
Potential Questions for Upcoming Exams:
Question: What is the SI unit of force?
Answer: Newton
Question: What is the unit of power?
Answer: Watt
Question: What is the SI unit of energy?
Answer: Joule
Question: What is the formula for work?
Answer: W = F × s