Question detail
In the equation Ek = 0.5 x m x v^2, what does 'm' represent?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Energy changes in a system, and the ways energy is stored before and after such changes
Question
- A. Mass of the object in kilograms
- B. Speed of the object in meters per second
- C. Kinetic energy in joules
- D. Force applied in newtons
Answer
Mass of the object in kilograms
Explanation
'm' in the equation represents the mass of the object, which is measured in kilograms.
Common mistake
Common Mistake in Kinetic Energy Calculation
Students often forget to square the speed (v) in the kinetic energy equation Ek = 0.5 x m x v^2.
Always remember to square the speed before multiplying by the mass and the 0.5 factor.
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