Question detail
What is the formula for calculating elastic potential energy in a spring, and what do the variables represent?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Energy changes in a system, and the ways energy is stored before and after such changes
Question
What is the formula for calculating elastic potential energy in a spring, and what do the variables represent?
Answer
The formula for calculating elastic potential energy (Ee) is Ee = 0.5 x k x e^2, where k is the spring constant in newtons per metre and e is the extension in metres.
Explanation
This question tests the student's understanding of the relationship between elastic potential energy, spring constant, and extension. It requires recall of the formula and comprehension of the variables involved.
Common mistake
Confusing Units of Measurement
Students often confuse elastic potential energy measured in joules with spring constant measured in newtons per metre.
Remember that elastic potential energy is always expressed in joules, while the spring constant is expressed in newtons per metre. Keep the units distinct when solving problems.
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