Exam-style question
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How do you check if the equation E = mc^2 is homogeneous?.
- A.Compare units of energy with mass and speed.
- B.Ensure all terms have the same unit.
- C.Convert all units to Joules.
- D.Check if mass is in kilograms.
Model answer
What a good answer should say
- Ensure all terms have the same unit.
Explanation
Why this works
To check if the equation E = mc^2 is homogeneous, you must ensure that all terms have the same unit. Here, energy (E) is in Joules, mass (m) in kilograms, and speed (c) in meters per second, leading to consistent units.
Common mistake
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