Question detail
What does the equation Ee = 0.5 x k x e^2 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 energy stored in a stretched spring
- B. The kinetic energy of a moving object
- C. The gravitational potential energy of an object
- D. The thermal energy of a substance
Answer
The energy stored in a stretched spring
Explanation
The correct option is "The energy stored in a stretched spring". The energy stored in a stretched spring is right because it directly matches Changes in energy: Recall and apply the equation Ee = 0.5 x k x e^2.. The other options are less suitable because they change the required Physics relationship, confuse the relevant energy store or use a distractor that does not answer the question.
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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