Question detail
In the equation Ee = 0.5 x k x e^2, what does 'k' 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. The extension of the spring
- B. The spring constant
- C. The mass of the spring
- D. The gravitational field strength
Answer
The spring constant
Explanation
'k' is the spring constant, which measures the stiffness of the spring and is expressed in newtons per metre.
Common mistake
Misunderstanding Elastic Potential Energy
Students often confuse the variables in the equation Ee = 0.5 x k x e^2, particularly mixing up the spring constant (k) and the extension (e).
To fix this, students should carefully identify each variable: k is the spring constant measured in N/m, and e is the extension in meters. Practicing with examples can help reinforce the correct application of the equation.
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